Merge branch 'development' of https://github.com/0xProject/0x-monorepo into feature/instant/dropdown-ui

34 files changed, 679 insertions, 450 deletions

diff --git a/packages/instant/package.json b/packages/instant/package.json
index 2af4a799c..32fbe08a4 100644
--- a/packages/instant/package.json
+++ b/packages/instant/package.json
@@ -49,6 +49,7 @@
         "@0x/asset-buyer": "^2.1.0",
         "@0x/json-schemas": "^2.0.0",
         "@0x/order-utils": "^2.0.0",
+        "@0x/subproviders": "^2.1.0",
         "@0x/types": "^1.2.0",
         "@0x/typescript-typings": "^3.0.3",
         "@0x/utils": "^2.0.3",
diff --git a/packages/instant/public/external.css b/packages/instant/public/external.css
new file mode 100644
index 000000000..cab11112a
--- /dev/null
+++ b/packages/instant/public/external.css
@@ -0,0 +1,25 @@
+/*
+  CSS file meant to represent an external (integrators) stylesheet and 
+  help ensure that instant looks consistent across environments. 
+*/
+
+button {
+    font-size: 50px;
+    height: 200px;
+    background-color: red;
+}
+
+input {
+    padding: 100px;
+    font-size: 50px;
+    height: 100px;
+}
+
+div {
+    padding: 3px;
+}
+
+p {
+    background-color: green;
+    margin: 10px;
+}
diff --git a/packages/instant/public/index.html b/packages/instant/public/index.html
index 033a125a4..f6c809e33 100644
--- a/packages/instant/public/index.html
+++ b/packages/instant/public/index.html
@@ -5,6 +5,7 @@
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <title>0x Instant Dev Environment</title>
+    <link rel="stylesheet" href="/external.css">
     <script type="text/javascript" src="/main.bundle.js" charset="utf-8"></script>
     <script type="text/javascript" src="https://unpkg.com/jsuri@1.3.1/Uri.js" charset="utf-8"></script>
     <script type="text/javascript" src="https://unpkg.com/bignumber.js@4.1.0/bignumber.js" charset="utf-8"></script>
diff --git a/packages/instant/src/components/buy_button.tsx b/packages/instant/src/components/buy_button.tsx
index e6d50de96..5b07e7416 100644
--- a/packages/instant/src/components/buy_button.tsx
+++ b/packages/instant/src/components/buy_button.tsx
@@ -13,11 +13,10 @@ import { gasPriceEstimator } from '../util/gas_price_estimator';
 import { util } from '../util/util';
 
 import { Button } from './ui/button';
-import { Text } from './ui/text';
 
 export interface BuyButtonProps {
     buyQuote?: BuyQuote;
-    assetBuyer?: AssetBuyer;
+    assetBuyer: AssetBuyer;
     affiliateInfo?: AffiliateInfo;
     onValidationPending: (buyQuote: BuyQuote) => void;
     onValidationFail: (buyQuote: BuyQuote, errorMessage: AssetBuyerError | ZeroExInstantError) => void;
@@ -34,23 +33,29 @@ export class BuyButton extends React.Component<BuyButtonProps> {
         onBuyFailure: util.boundNoop,
     };
     public render(): React.ReactNode {
-        const shouldDisableButton = _.isUndefined(this.props.buyQuote) || _.isUndefined(this.props.assetBuyer);
+        const shouldDisableButton = _.isUndefined(this.props.buyQuote);
         return (
-            <Button width="100%" onClick={this._handleClick} isDisabled={shouldDisableButton}>
-                <Text fontColor={ColorOption.white} fontWeight={600} fontSize="20px">
-                    Buy
-                </Text>
+            <Button
+                width="100%"
+                onClick={this._handleClick}
+                isDisabled={shouldDisableButton}
+                fontColor={ColorOption.white}
+                fontSize="20px"
+            >
+                Buy
             </Button>
         );
     }
     private readonly _handleClick = async () => {
         // The button is disabled when there is no buy quote anyway.
         const { buyQuote, assetBuyer, affiliateInfo } = this.props;
-        if (_.isUndefined(buyQuote) || _.isUndefined(assetBuyer)) {
+        if (_.isUndefined(buyQuote)) {
             return;
         }
 
         this.props.onValidationPending(buyQuote);
+
+        // TODO(bmillman): move address and balance fetching to the async state
         const web3Wrapper = new Web3Wrapper(assetBuyer.provider);
         const takerAddress = await getBestAddress(web3Wrapper);
 
diff --git a/packages/instant/src/components/buy_order_progress.tsx b/packages/instant/src/components/buy_order_progress.tsx
index 7fe4e77e9..bc7319423 100644
--- a/packages/instant/src/components/buy_order_progress.tsx
+++ b/packages/instant/src/components/buy_order_progress.tsx
@@ -14,12 +14,12 @@ export const BuyOrderProgress: React.StatelessComponent<BuyOrderProgressProps> =
     const { buyOrderState } = props;
 
     if (
-        buyOrderState.processState === OrderProcessState.PROCESSING ||
-        buyOrderState.processState === OrderProcessState.SUCCESS ||
-        buyOrderState.processState === OrderProcessState.FAILURE
+        buyOrderState.processState === OrderProcessState.Processing ||
+        buyOrderState.processState === OrderProcessState.Success ||
+        buyOrderState.processState === OrderProcessState.Failure
     ) {
         const progress = buyOrderState.progress;
-        const hasEnded = buyOrderState.processState !== OrderProcessState.PROCESSING;
+        const hasEnded = buyOrderState.processState !== OrderProcessState.Processing;
         const expectedTimeMs = progress.expectedEndTimeUnix - progress.startTimeUnix;
         return (
             <Container padding="20px 20px 0px 20px" width="100%">
diff --git a/packages/instant/src/components/buy_order_state_buttons.tsx b/packages/instant/src/components/buy_order_state_buttons.tsx
index 0d54d3187..bdac25cf2 100644
--- a/packages/instant/src/components/buy_order_state_buttons.tsx
+++ b/packages/instant/src/components/buy_order_state_buttons.tsx
@@ -10,12 +10,11 @@ import { SecondaryButton } from './secondary_button';
 
 import { Button } from './ui/button';
 import { Flex } from './ui/flex';
-import { Text } from './ui/text';
 
 export interface BuyOrderStateButtonProps {
     buyQuote?: BuyQuote;
     buyOrderProcessingState: OrderProcessState;
-    assetBuyer?: AssetBuyer;
+    assetBuyer: AssetBuyer;
     affiliateInfo?: AffiliateInfo;
     onViewTransaction: () => void;
     onValidationPending: (buyQuote: BuyQuote) => void;
@@ -28,13 +27,11 @@ export interface BuyOrderStateButtonProps {
 }
 
 export const BuyOrderStateButtons: React.StatelessComponent<BuyOrderStateButtonProps> = props => {
-    if (props.buyOrderProcessingState === OrderProcessState.FAILURE) {
+    if (props.buyOrderProcessingState === OrderProcessState.Failure) {
         return (
             <Flex justify="space-between">
-                <Button width="48%" onClick={props.onRetry}>
-                    <Text fontColor={ColorOption.white} fontWeight={600} fontSize="16px">
-                        Back
-                    </Text>
+                <Button width="48%" onClick={props.onRetry} fontColor={ColorOption.white} fontSize="16px">
+                    Back
                 </Button>
                 <SecondaryButton width="48%" onClick={props.onViewTransaction}>
                     Details
@@ -42,11 +39,11 @@ export const BuyOrderStateButtons: React.StatelessComponent<BuyOrderStateButtonP
             </Flex>
         );
     } else if (
-        props.buyOrderProcessingState === OrderProcessState.SUCCESS ||
-        props.buyOrderProcessingState === OrderProcessState.PROCESSING
+        props.buyOrderProcessingState === OrderProcessState.Success ||
+        props.buyOrderProcessingState === OrderProcessState.Processing
     ) {
         return <SecondaryButton onClick={props.onViewTransaction}>View Transaction</SecondaryButton>;
-    } else if (props.buyOrderProcessingState === OrderProcessState.VALIDATING) {
+    } else if (props.buyOrderProcessingState === OrderProcessState.Validating) {
         return <PlacingOrderButton />;
     }
 
diff --git a/packages/instant/src/components/css_reset.tsx b/packages/instant/src/components/css_reset.tsx
new file mode 100644
index 000000000..a1dd2e05c
--- /dev/null
+++ b/packages/instant/src/components/css_reset.tsx
@@ -0,0 +1,33 @@
+import { INJECTED_DIV_CLASS } from '../constants';
+import { createGlobalStyle } from '../style/theme';
+
+export interface CSSResetProps {}
+
+/*
+* Derived from
+* https://github.com/jtrost/Complete-CSS-Reset
+*/
+export const CSSReset = createGlobalStyle`
+    .${INJECTED_DIV_CLASS} {
+        a, abbr, area, article, aside, audio, b, bdo, blockquote, body, button,
+        canvas, caption, cite, code, col, colgroup, command, datalist, dd, del,
+        details, dialog, dfn, div, dl, dt, em, embed, fieldset, figure, form,
+        h1, h2, h3, h4, h5, h6, head, header, hgroup, hr, html, i, iframe, img,
+        input, ins, keygen, kbd, label, legend, li, map, mark, menu, meter, nav,
+        noscript, object, ol, optgroup, option, output, p, param, pre, progress,
+        q, rp, rt, ruby, samp, section, select, small, span, strong, sub, sup,
+        table, tbody, td, textarea, tfoot, th, thead, time, tr, ul, var, video {
+            background: transparent;
+            border: 0;
+            font-size: 100%;
+            font: inherit;
+            margin: 0;
+            outline: none;
+            padding: 0;
+            text-align: left;
+            text-decoration: none;
+            vertical-align: baseline;
+            z-index: 1;
+        }
+    }
+`;
diff --git a/packages/instant/src/components/instant_heading.tsx b/packages/instant/src/components/instant_heading.tsx
index 6d87bc292..b07776b2c 100644
--- a/packages/instant/src/components/instant_heading.tsx
+++ b/packages/instant/src/components/instant_heading.tsx
@@ -77,11 +77,11 @@ export class InstantHeading extends React.Component<InstantHeadingProps, {}> {
     private _renderIcon(): React.ReactNode {
         const processState = this.props.buyOrderState.processState;
 
-        if (processState === OrderProcessState.FAILURE) {
+        if (processState === OrderProcessState.Failure) {
             return <Icon icon="failed" width={ICON_WIDTH} height={ICON_HEIGHT} color={ICON_COLOR} />;
-        } else if (processState === OrderProcessState.PROCESSING) {
+        } else if (processState === OrderProcessState.Processing) {
             return <Spinner widthPx={ICON_HEIGHT} heightPx={ICON_HEIGHT} />;
-        } else if (processState === OrderProcessState.SUCCESS) {
+        } else if (processState === OrderProcessState.Success) {
             return <Icon icon="success" width={ICON_WIDTH} height={ICON_HEIGHT} color={ICON_COLOR} />;
         }
         return undefined;
@@ -89,11 +89,11 @@ export class InstantHeading extends React.Component<InstantHeadingProps, {}> {
 
     private _renderTopText(): React.ReactNode {
         const processState = this.props.buyOrderState.processState;
-        if (processState === OrderProcessState.FAILURE) {
+        if (processState === OrderProcessState.Failure) {
             return 'Order failed';
-        } else if (processState === OrderProcessState.PROCESSING) {
+        } else if (processState === OrderProcessState.Processing) {
             return 'Processing Order...';
-        } else if (processState === OrderProcessState.SUCCESS) {
+        } else if (processState === OrderProcessState.Success) {
             return 'Tokens received!';
         }
 
@@ -101,7 +101,7 @@ export class InstantHeading extends React.Component<InstantHeadingProps, {}> {
     }
 
     private _renderPlaceholderOrAmount(amountFunction: () => React.ReactNode): React.ReactNode {
-        if (this.props.quoteRequestState === AsyncProcessState.PENDING) {
+        if (this.props.quoteRequestState === AsyncProcessState.Pending) {
             return <AmountPlaceholder isPulsating={true} color={PLACEHOLDER_COLOR} />;
         }
         if (_.isUndefined(this.props.selectedAssetAmount)) {
diff --git a/packages/instant/src/components/placing_order_button.tsx b/packages/instant/src/components/placing_order_button.tsx
index 4232e6c22..d774d7d27 100644
--- a/packages/instant/src/components/placing_order_button.tsx
+++ b/packages/instant/src/components/placing_order_button.tsx
@@ -5,15 +5,12 @@ import { ColorOption } from '../style/theme';
 import { Button } from './ui/button';
 import { Container } from './ui/container';
 import { Spinner } from './ui/spinner';
-import { Text } from './ui/text';
 
 export const PlacingOrderButton: React.StatelessComponent<{}> = props => (
-    <Button isDisabled={true} width="100%">
+    <Button isDisabled={true} width="100%" fontColor={ColorOption.white} fontSize="20px">
         <Container display="inline-block" position="relative" top="3px" marginRight="8px">
             <Spinner widthPx={20} heightPx={20} />
         </Container>
-        <Text fontColor={ColorOption.white} fontWeight={600} fontSize="20px">
-            Placing Order&hellip;
-        </Text>
+        Placing Order&hellip;
     </Button>
 );
diff --git a/packages/instant/src/components/secondary_button.tsx b/packages/instant/src/components/secondary_button.tsx
index 583058b5b..df0539606 100644
--- a/packages/instant/src/components/secondary_button.tsx
+++ b/packages/instant/src/components/secondary_button.tsx
@@ -4,7 +4,6 @@ import * as React from 'react';
 import { ColorOption } from '../style/theme';
 
 import { Button, ButtonProps } from './ui/button';
-import { Text } from './ui/text';
 
 export interface SecondaryButtonProps extends ButtonProps {}
 
@@ -16,11 +15,11 @@ export const SecondaryButton: React.StatelessComponent<SecondaryButtonProps> = p
             borderColor={ColorOption.lightGrey}
             width={props.width}
             onClick={props.onClick}
+            fontColor={ColorOption.primaryColor}
+            fontSize="16px"
             {...buttonProps}
         >
-            <Text fontColor={ColorOption.primaryColor} fontWeight={600} fontSize="16px">
-                {props.children}
-            </Text>
+            {props.children}
         </Button>
     );
 };
diff --git a/packages/instant/src/components/timed_progress_bar.tsx b/packages/instant/src/components/timed_progress_bar.tsx
index f2a6f5745..59aaa33a1 100644
--- a/packages/instant/src/components/timed_progress_bar.tsx
+++ b/packages/instant/src/components/timed_progress_bar.tsx
@@ -70,9 +70,11 @@ export const TimedProgress =
     styled.div <
     TimedProgressProps >
     `
-    background-color: ${props => props.theme[ColorOption.primaryColor]};
-    border-radius: 6px;
-    height: 6px;
-    animation: ${props => expandingWidthKeyframes(props.fromWidth, props.toWidth)}
-      ${props => props.timeMs}ms linear 1 forwards;
-  `;
+    && {
+        background-color: ${props => props.theme[ColorOption.primaryColor]};
+        border-radius: 6px;
+        height: 6px;
+        animation: ${props => expandingWidthKeyframes(props.fromWidth, props.toWidth)}
+          ${props => props.timeMs}ms linear 1 forwards;
+    }
+`;
diff --git a/packages/instant/src/components/ui/button.tsx b/packages/instant/src/components/ui/button.tsx
index 5274d835b..b90221bf4 100644
--- a/packages/instant/src/components/ui/button.tsx
+++ b/packages/instant/src/components/ui/button.tsx
@@ -6,6 +6,8 @@ import { ColorOption, styled } from '../../style/theme';
 export interface ButtonProps {
     backgroundColor?: ColorOption;
     borderColor?: ColorOption;
+    fontColor?: ColorOption;
+    fontSize?: string;
     width?: string;
     padding?: string;
     type?: string;
@@ -24,29 +26,39 @@ const darkenOnHoverAmount = 0.1;
 const darkenOnActiveAmount = 0.2;
 const saturateOnFocusAmount = 0.2;
 export const Button = styled(PlainButton)`
-    cursor: ${props => (props.isDisabled ? 'default' : 'pointer')};
-    transition: background-color, opacity 0.5s ease;
-    padding: ${props => props.padding};
-    border-radius: 3px;
-    outline: none;
-    width: ${props => props.width};
-    background-color: ${props => (props.backgroundColor ? props.theme[props.backgroundColor] : 'none')};
-    border: ${props => (props.borderColor ? `1px solid ${props.theme[props.borderColor]}` : 'none')};
-    &:hover {
-        background-color: ${props =>
-            !props.isDisabled
-                ? darken(darkenOnHoverAmount, props.theme[props.backgroundColor || 'white'])
-                : ''} !important;
-    }
-    &:active {
-        background-color: ${props =>
-            !props.isDisabled ? darken(darkenOnActiveAmount, props.theme[props.backgroundColor || 'white']) : ''};
-    }
-    &:disabled {
-        opacity: 0.5;
-    }
-    &:focus {
-        background-color: ${props => saturate(saturateOnFocusAmount, props.theme[props.backgroundColor || 'white'])};
+    && {
+        all: initial;
+        box-sizing: border-box;
+        font-size: ${props => props.fontSize};
+        font-family: 'Inter UI', sans-serif;
+        font-weight: 600;
+        color: ${props => props.fontColor && props.theme[props.fontColor]};
+        cursor: ${props => (props.isDisabled ? 'default' : 'pointer')};
+        transition: background-color, opacity 0.5s ease;
+        padding: ${props => props.padding};
+        border-radius: 3px;
+        text-align: center;
+        outline: none;
+        width: ${props => props.width};
+        background-color: ${props => (props.backgroundColor ? props.theme[props.backgroundColor] : 'none')};
+        border: ${props => (props.borderColor ? `1px solid ${props.theme[props.borderColor]}` : 'none')};
+        &:hover {
+            background-color: ${props =>
+                !props.isDisabled
+                    ? darken(darkenOnHoverAmount, props.theme[props.backgroundColor || 'white'])
+                    : ''} !important;
+        }
+        &:active {
+            background-color: ${props =>
+                !props.isDisabled ? darken(darkenOnActiveAmount, props.theme[props.backgroundColor || 'white']) : ''};
+        }
+        &:disabled {
+            opacity: 0.5;
+        }
+        &:focus {
+            background-color: ${props =>
+                saturate(saturateOnFocusAmount, props.theme[props.backgroundColor || 'white'])};
+        }
     }
 `;
 
@@ -55,7 +67,8 @@ Button.defaultProps = {
     borderColor: ColorOption.primaryColor,
     width: 'auto',
     isDisabled: false,
-    padding: '1em 2.2em',
+    padding: '.6em 1.2em',
+    fontSize: '15px',
 };
 
 Button.displayName = 'Button';
diff --git a/packages/instant/src/components/ui/circle.tsx b/packages/instant/src/components/ui/circle.tsx
index cb121992f..4f9f56f12 100644
--- a/packages/instant/src/components/ui/circle.tsx
+++ b/packages/instant/src/components/ui/circle.tsx
@@ -11,10 +11,12 @@ export const Circle = withTheme(
     styled.div <
         CircleProps >
         `
-    width: ${props => props.diameter}px;
-    height: ${props => props.diameter}px;
-    background-color: ${props => (props.rawColor ? props.rawColor : props.theme[props.color || ColorOption.white])};
-    border-radius: 50%;
+    && {
+        width: ${props => props.diameter}px;
+        height: ${props => props.diameter}px;
+        background-color: ${props => (props.rawColor ? props.rawColor : props.theme[props.color || ColorOption.white])};
+        border-radius: 50%;
+    }
 `,
 );
 
diff --git a/packages/instant/src/components/ui/container.tsx b/packages/instant/src/components/ui/container.tsx
index 403751210..bffa1d7d4 100644
--- a/packages/instant/src/components/ui/container.tsx
+++ b/packages/instant/src/components/ui/container.tsx
@@ -41,42 +41,45 @@ export const Container =
     styled.div <
     ContainerProps >
     `
-    box-sizing: border-box;
-    ${props => cssRuleIfExists(props, 'flex-grow')}
-    ${props => cssRuleIfExists(props, 'position')}
-    ${props => cssRuleIfExists(props, 'top')}
-    ${props => cssRuleIfExists(props, 'right')}
-    ${props => cssRuleIfExists(props, 'bottom')}
-    ${props => cssRuleIfExists(props, 'left')}
-    ${props => cssRuleIfExists(props, 'max-width')}
-    ${props => cssRuleIfExists(props, 'margin')}
-    ${props => cssRuleIfExists(props, 'margin-top')}
-    ${props => cssRuleIfExists(props, 'margin-right')}
-    ${props => cssRuleIfExists(props, 'margin-bottom')}
-    ${props => cssRuleIfExists(props, 'margin-left')}
-    ${props => cssRuleIfExists(props, 'padding')}
-    ${props => cssRuleIfExists(props, 'border-radius')}
-    ${props => cssRuleIfExists(props, 'border')}
-    ${props => cssRuleIfExists(props, 'border-top')}
-    ${props => cssRuleIfExists(props, 'border-bottom')}
-    ${props => cssRuleIfExists(props, 'z-index')}
-    ${props => cssRuleIfExists(props, 'white-space')}
-    ${props => cssRuleIfExists(props, 'opacity')}
-    ${props => cssRuleIfExists(props, 'cursor')}
-    ${props => cssRuleIfExists(props, 'overflow')}
-    ${props => (props.hasBoxShadow ? `box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.1)` : '')};
-    ${props => props.display && stylesForMedia('display', props.display)}
-    ${props => stylesForMedia('width', props.width || 'auto')}
-    ${props => stylesForMedia('height', props.height || 'auto')}
-    background-color: ${props => (props.backgroundColor ? props.theme[props.backgroundColor] : 'none')};
-    border-color: ${props => (props.borderColor ? props.theme[props.borderColor] : 'none')};
-    &:hover {
-        ${props =>
-            props.darkenOnHover
-                ? `background-color: ${
-                      props.backgroundColor ? darken(0.05, props.theme[props.backgroundColor]) : 'none'
-                  }`
-                : ''};
+    && {
+        all: initial;
+        box-sizing: border-box;
+        ${props => cssRuleIfExists(props, 'flex-grow')}
+        ${props => cssRuleIfExists(props, 'position')}
+        ${props => cssRuleIfExists(props, 'top')}
+        ${props => cssRuleIfExists(props, 'right')}
+        ${props => cssRuleIfExists(props, 'bottom')}
+        ${props => cssRuleIfExists(props, 'left')}
+        ${props => cssRuleIfExists(props, 'max-width')}
+        ${props => cssRuleIfExists(props, 'margin')}
+        ${props => cssRuleIfExists(props, 'margin-top')}
+        ${props => cssRuleIfExists(props, 'margin-right')}
+        ${props => cssRuleIfExists(props, 'margin-bottom')}
+        ${props => cssRuleIfExists(props, 'margin-left')}
+        ${props => cssRuleIfExists(props, 'padding')}
+        ${props => cssRuleIfExists(props, 'border-radius')}
+        ${props => cssRuleIfExists(props, 'border')}
+        ${props => cssRuleIfExists(props, 'border-top')}
+        ${props => cssRuleIfExists(props, 'border-bottom')}
+        ${props => cssRuleIfExists(props, 'z-index')}
+        ${props => cssRuleIfExists(props, 'white-space')}
+        ${props => cssRuleIfExists(props, 'opacity')}
+        ${props => cssRuleIfExists(props, 'cursor')}
+        ${props => cssRuleIfExists(props, 'overflow')}
+        ${props => (props.hasBoxShadow ? `box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.1)` : '')};
+        ${props => props.display && stylesForMedia('display', props.display)}
+        ${props => (props.width ? stylesForMedia('width', props.width) : '')}
+        ${props => (props.height ? stylesForMedia('height', props.height) : '')}
+        background-color: ${props => (props.backgroundColor ? props.theme[props.backgroundColor] : 'none')};
+        border-color: ${props => (props.borderColor ? props.theme[props.borderColor] : 'none')};
+        &:hover {
+            ${props =>
+                props.darkenOnHover
+                    ? `background-color: ${
+                          props.backgroundColor ? darken(0.05, props.theme[props.backgroundColor]) : 'none'
+                      }`
+                    : ''};
+        }
     }
 `;
 
diff --git a/packages/instant/src/components/ui/flex.tsx b/packages/instant/src/components/ui/flex.tsx
index fd218b0cd..5b00138b8 100644
--- a/packages/instant/src/components/ui/flex.tsx
+++ b/packages/instant/src/components/ui/flex.tsx
@@ -18,15 +18,18 @@ export const Flex =
     styled.div <
     FlexProps >
     `
-    display: ${props => (props.inline ? 'inline-flex' : 'flex')};
-    flex-direction: ${props => props.direction};
-    flex-wrap: ${props => props.flexWrap};
-    ${props => cssRuleIfExists(props, 'flexGrow')}
-    justify-content: ${props => props.justify};
-    align-items: ${props => props.align};
-    background-color: ${props => (props.backgroundColor ? props.theme[props.backgroundColor] : 'none')};
-    ${props => stylesForMedia('width', props.width || 'auto')}
-    ${props => stylesForMedia('height', props.height || 'auto')}
+    && {
+        all: initial;
+        display: ${props => (props.inline ? 'inline-flex' : 'flex')};
+        flex-direction: ${props => props.direction};
+        flex-wrap: ${props => props.flexWrap};
+        ${props => cssRuleIfExists(props, 'flexGrow')}
+        justify-content: ${props => props.justify};
+        align-items: ${props => props.align};
+        background-color: ${props => (props.backgroundColor ? props.theme[props.backgroundColor] : 'none')};
+        ${props => (props.width ? stylesForMedia('width', props.width) : '')}
+        ${props => (props.height ? stylesForMedia('height', props.height) : '')}
+    }
 `;
 
 Flex.defaultProps = {
diff --git a/packages/instant/src/components/ui/input.tsx b/packages/instant/src/components/ui/input.tsx
index a884ff7cb..2fb408db4 100644
--- a/packages/instant/src/components/ui/input.tsx
+++ b/packages/instant/src/components/ui/input.tsx
@@ -16,17 +16,20 @@ export const Input =
     styled.input <
     InputProps >
     `
-    font-size: ${props => props.fontSize};
-    width: ${props => props.width};
-    padding: 0.1em 0em;
-    font-family: 'Inter UI';
-    color: ${props => props.theme[props.fontColor || 'white']};
-    background: transparent;
-    outline: none;
-    border: none;
-    &::placeholder {
+    && {
+        all: initial;
+        font-size: ${props => props.fontSize};
+        width: ${props => props.width};
+        padding: 0.1em 0em;
+        font-family: 'Inter UI';
         color: ${props => props.theme[props.fontColor || 'white']};
-        opacity: 0.5;
+        background: transparent;
+        outline: none;
+        border: none;
+        &::placeholder {
+            color: ${props => props.theme[props.fontColor || 'white']};
+            opacity: 0.5;
+        }
     }
 `;
 
diff --git a/packages/instant/src/components/ui/text.tsx b/packages/instant/src/components/ui/text.tsx
index cba6e7b20..c6a76ff18 100644
--- a/packages/instant/src/components/ui/text.tsx
+++ b/packages/instant/src/components/ui/text.tsx
@@ -27,25 +27,28 @@ export const Text =
     styled.div <
     TextProps >
     `
-    font-family: ${props => props.fontFamily};
-    font-style: ${props => props.fontStyle};
-    font-weight: ${props => props.fontWeight};
-    font-size: ${props => props.fontSize};
-    opacity: ${props => props.opacity};
-    text-decoration-line: ${props => props.textDecorationLine};
-    ${props => (props.lineHeight ? `line-height: ${props.lineHeight}` : '')};
-    ${props => (props.center ? 'text-align: center' : '')};
-    color: ${props => props.fontColor && props.theme[props.fontColor]};
-    ${props => (props.minHeight ? `min-height: ${props.minHeight}` : '')};
-    ${props => (props.onClick ? 'cursor: pointer' : '')};
-    transition: color 0.5s ease;
-    ${props => (props.noWrap ? 'white-space: nowrap' : '')};
-    ${props => (props.display ? `display: ${props.display}` : '')};
-    ${props => (props.letterSpacing ? `letter-spacing: ${props.letterSpacing}` : '')};
-    ${props => (props.textTransform ? `text-transform: ${props.textTransform}` : '')};
-    &:hover {
-        ${props =>
-            props.onClick ? `color: ${darken(darkenOnHoverAmount, props.theme[props.fontColor || 'white'])}` : ''};
+    && {
+        all: initial;
+        font-family: 'Inter UI', sans-serif;
+        font-style: ${props => props.fontStyle};
+        font-weight: ${props => props.fontWeight};
+        font-size: ${props => props.fontSize};
+        opacity: ${props => props.opacity};
+        text-decoration-line: ${props => props.textDecorationLine};
+        ${props => (props.lineHeight ? `line-height: ${props.lineHeight}` : '')};
+        ${props => (props.center ? 'text-align: center' : '')};
+        color: ${props => props.fontColor && props.theme[props.fontColor]};
+        ${props => (props.minHeight ? `min-height: ${props.minHeight}` : '')};
+        ${props => (props.onClick ? 'cursor: pointer' : '')};
+        transition: color 0.5s ease;
+        ${props => (props.noWrap ? 'white-space: nowrap' : '')};
+        ${props => (props.display ? `display: ${props.display}` : '')};
+        ${props => (props.letterSpacing ? `letter-spacing: ${props.letterSpacing}` : '')};
+        ${props => (props.textTransform ? `text-transform: ${props.textTransform}` : '')};
+        &:hover {
+            ${props =>
+                props.onClick ? `color: ${darken(darkenOnHoverAmount, props.theme[props.fontColor || 'white'])}` : ''};
+        }
     }
 `;
 
@@ -61,14 +64,3 @@ Text.defaultProps = {
 };
 
 Text.displayName = 'Text';
-
-export const Title: React.StatelessComponent<TextProps> = props => <Text {...props} />;
-
-Title.defaultProps = {
-    fontSize: '20px',
-    fontWeight: 600,
-    opacity: 1,
-    fontColor: ColorOption.primaryColor,
-};
-
-Title.displayName = 'Title';
diff --git a/packages/instant/src/components/zero_ex_instant.tsx b/packages/instant/src/components/zero_ex_instant.tsx
index 907c42e7a..b945f9908 100644
--- a/packages/instant/src/components/zero_ex_instant.tsx
+++ b/packages/instant/src/components/zero_ex_instant.tsx
@@ -1,5 +1,7 @@
 import * as React from 'react';
 
+import { INJECTED_DIV_CLASS } from '../constants';
+
 import { ZeroExInstantContainer } from './zero_ex_instant_container';
 import { ZeroExInstantProvider, ZeroExInstantProviderProps } from './zero_ex_instant_provider';
 
@@ -7,8 +9,10 @@ export type ZeroExInstantProps = ZeroExInstantProviderProps;
 
 export const ZeroExInstant: React.StatelessComponent<ZeroExInstantProps> = props => {
     return (
-        <ZeroExInstantProvider {...props}>
-            <ZeroExInstantContainer />
-        </ZeroExInstantProvider>
+        <div className={INJECTED_DIV_CLASS}>
+            <ZeroExInstantProvider {...props}>
+                <ZeroExInstantContainer />
+            </ZeroExInstantProvider>
+        </div>
     );
 };
diff --git a/packages/instant/src/components/zero_ex_instant_container.tsx b/packages/instant/src/components/zero_ex_instant_container.tsx
index 3c43f0be6..575093c46 100644
--- a/packages/instant/src/components/zero_ex_instant_container.tsx
+++ b/packages/instant/src/components/zero_ex_instant_container.tsx
@@ -10,6 +10,7 @@ import { ColorOption } from '../style/theme';
 import { zIndex } from '../style/z_index';
 
 import { SlideAnimationState } from './animations/slide_animation';
+import { CSSReset } from './css_reset';
 import { PaymentMethod } from './payment_method';
 import { SlidingPanel } from './sliding_panel';
 import { Container } from './ui/container';
@@ -26,41 +27,44 @@ export class ZeroExInstantContainer extends React.Component<ZeroExInstantContain
     };
     public render(): React.ReactNode {
         return (
-            <Container
-                width={{ default: '350px', sm: '100%' }}
-                height={{ default: 'auto', sm: '100%' }}
-                position="relative"
-            >
-                <Container zIndex={zIndex.errorPopup} position="relative">
-                    <LatestError />
-                </Container>
+            <React.Fragment>
+                <CSSReset />
                 <Container
-                    zIndex={zIndex.mainContainer}
+                    width={{ default: '350px', sm: '100%' }}
+                    height={{ default: 'auto', sm: '100%' }}
                     position="relative"
-                    backgroundColor={ColorOption.white}
-                    borderRadius="3px"
-                    hasBoxShadow={true}
-                    overflow="hidden"
-                    height="100%"
                 >
-                    <Flex direction="column" height="100%" justify="flex-start">
-                        <SelectedAssetInstantHeading onSelectAssetClick={this._handleSymbolClick} />
-                        <PaymentMethod />
-                        <SelectedAssetBuyOrderProgress />
-                        <LatestBuyQuoteOrderDetails />
-                        <Container padding="20px" width="100%">
-                            <SelectedAssetBuyOrderStateButtons />
-                        </Container>
-                    </Flex>
-                    <SlidingPanel
-                        title="Select Token"
-                        animationState={this.state.tokenSelectionPanelAnimationState}
-                        onClose={this._handlePanelClose}
+                    <Container zIndex={zIndex.errorPopup} position="relative">
+                        <LatestError />
+                    </Container>
+                    <Container
+                        zIndex={zIndex.mainContainer}
+                        position="relative"
+                        backgroundColor={ColorOption.white}
+                        borderRadius="3px"
+                        hasBoxShadow={true}
+                        overflow="hidden"
+                        height="100%"
                     >
-                        <AvailableERC20TokenSelector onTokenSelect={this._handlePanelClose} />
-                    </SlidingPanel>
+                        <Flex direction="column" justify="flex-start" height="100%">
+                            <SelectedAssetInstantHeading onSelectAssetClick={this._handleSymbolClick} />
+                            <SelectedAssetBuyOrderProgress />
+                            <PaymentMethod />
+                            <LatestBuyQuoteOrderDetails />
+                            <Container padding="20px" width="100%">
+                                <SelectedAssetBuyOrderStateButtons />
+                            </Container>
+                        </Flex>
+                        <SlidingPanel
+                            title="Select Token"
+                            animationState={this.state.tokenSelectionPanelAnimationState}
+                            onClose={this._handlePanelClose}
+                        >
+                            <AvailableERC20TokenSelector onTokenSelect={this._handlePanelClose} />
+                        </SlidingPanel>
+                    </Container>
                 </Container>
-            </Container>
+            </React.Fragment>
         );
     }
     private readonly _handleSymbolClick = (): void => {
diff --git a/packages/instant/src/components/zero_ex_instant_provider.tsx b/packages/instant/src/components/zero_ex_instant_provider.tsx
index 0b9408329..1fb5cf64f 100644
--- a/packages/instant/src/components/zero_ex_instant_provider.tsx
+++ b/packages/instant/src/components/zero_ex_instant_provider.tsx
@@ -1,23 +1,20 @@
-import { AssetBuyer } from '@0x/asset-buyer';
-import { ObjectMap, SignedOrder } from '@0x/types';
+import { ObjectMap } from '@0x/types';
 import { BigNumber } from '@0x/utils';
-import { Web3Wrapper } from '@0x/web3-wrapper';
 import { Provider } from 'ethereum-types';
 import * as _ from 'lodash';
 import * as React from 'react';
 import { Provider as ReduxProvider } from 'react-redux';
-import { oc } from 'ts-optchain';
 
 import { SelectedAssetThemeProvider } from '../containers/selected_asset_theme_provider';
 import { asyncData } from '../redux/async_data';
-import { INITIAL_STATE, State } from '../redux/reducer';
+import { DEFAULT_STATE, DefaultState, State } from '../redux/reducer';
 import { store, Store } from '../redux/store';
 import { fonts } from '../style/fonts';
-import { AffiliateInfo, AssetMetaData, Network } from '../types';
+import { AffiliateInfo, AssetMetaData, Network, OrderSource } from '../types';
 import { assetUtils } from '../util/asset';
 import { errorFlasher } from '../util/error_flasher';
 import { gasPriceEstimator } from '../util/gas_price_estimator';
-import { getInjectedProvider } from '../util/injected_provider';
+import { providerStateFactory } from '../util/provider_state_factory';
 
 fonts.include();
 
@@ -25,7 +22,7 @@ export type ZeroExInstantProviderProps = ZeroExInstantProviderRequiredProps &
     Partial<ZeroExInstantProviderOptionalProps>;
 
 export interface ZeroExInstantProviderRequiredProps {
-    orderSource: string | SignedOrder[];
+    orderSource: OrderSource;
 }
 
 export interface ZeroExInstantProviderOptionalProps {
@@ -41,30 +38,27 @@ export interface ZeroExInstantProviderOptionalProps {
 export class ZeroExInstantProvider extends React.Component<ZeroExInstantProviderProps> {
     private readonly _store: Store;
     // TODO(fragosti): Write tests for this beast once we inject a provider.
-    private static _mergeInitialStateWithProps(props: ZeroExInstantProviderProps, state: State = INITIAL_STATE): State {
-        const networkId = props.networkId || state.network;
-        // TODO: Proper wallet connect flow
-        const provider = props.provider || getInjectedProvider();
-        const assetBuyerOptions = {
+    private static _mergeDefaultStateWithProps(
+        props: ZeroExInstantProviderProps,
+        defaultState: DefaultState = DEFAULT_STATE,
+    ): State {
+        // use the networkId passed in with the props, otherwise default to that of the default state (1, mainnet)
+        const networkId = props.networkId || defaultState.network;
+        // construct the ProviderState
+        const providerState = providerStateFactory.getInitialProviderState(
+            props.orderSource,
             networkId,
-        };
-        let assetBuyer;
-        if (_.isString(props.orderSource)) {
-            assetBuyer = AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl(
-                provider,
-                props.orderSource,
-                assetBuyerOptions,
-            );
-        } else {
-            assetBuyer = AssetBuyer.getAssetBuyerForProvidedOrders(provider, props.orderSource, assetBuyerOptions);
-        }
+            props.provider,
+        );
+        // merge the additional additionalAssetMetaDataMap with our default map
         const completeAssetMetaDataMap = {
             ...props.additionalAssetMetaDataMap,
-            ...state.assetMetaDataMap,
+            ...defaultState.assetMetaDataMap,
         };
+        // construct the final state
         const storeStateFromProps: State = {
-            ...state,
-            assetBuyer,
+            ...defaultState,
+            providerState,
             network: networkId,
             selectedAsset: _.isUndefined(props.defaultSelectedAssetData)
                 ? undefined
@@ -74,7 +68,7 @@ export class ZeroExInstantProvider extends React.Component<ZeroExInstantProvider
                       networkId,
                   ),
             selectedAssetAmount: _.isUndefined(props.defaultAssetBuyAmount)
-                ? state.selectedAssetAmount
+                ? undefined
                 : new BigNumber(props.defaultAssetBuyAmount),
             availableAssets: _.isUndefined(props.availableAssetDatas)
                 ? undefined
@@ -86,10 +80,9 @@ export class ZeroExInstantProvider extends React.Component<ZeroExInstantProvider
     }
     constructor(props: ZeroExInstantProviderProps) {
         super(props);
-        const initialAppState = ZeroExInstantProvider._mergeInitialStateWithProps(this.props, INITIAL_STATE);
+        const initialAppState = ZeroExInstantProvider._mergeDefaultStateWithProps(this.props);
         this._store = store.create(initialAppState);
     }
-
     public componentDidMount(): void {
         const state = this._store.getState();
         // tslint:disable-next-line:no-floating-promises
@@ -108,7 +101,6 @@ export class ZeroExInstantProvider extends React.Component<ZeroExInstantProvider
         // tslint:disable-next-line:no-floating-promises
         this._flashErrorIfWrongNetwork();
     }
-
     public render(): React.ReactNode {
         return (
             <ReduxProvider store={this._store}>
@@ -116,19 +108,15 @@ export class ZeroExInstantProvider extends React.Component<ZeroExInstantProvider
             </ReduxProvider>
         );
     }
-
     private readonly _flashErrorIfWrongNetwork = async (): Promise<void> => {
         const msToShowError = 30000; // 30 seconds
-        const network = this._store.getState().network;
-        const assetBuyerIfExists = this._store.getState().assetBuyer;
-        const providerIfExists = oc(assetBuyerIfExists).provider();
-        if (!_.isUndefined(providerIfExists)) {
-            const web3Wrapper = new Web3Wrapper(providerIfExists);
-            const networkOfProvider = await web3Wrapper.getNetworkIdAsync();
-            if (network !== networkOfProvider) {
-                const errorMessage = `Wrong network detected. Try switching to ${Network[network]}.`;
-                errorFlasher.flashNewErrorMessage(this._store.dispatch, errorMessage, msToShowError);
-            }
+        const state = this._store.getState();
+        const network = state.network;
+        const web3Wrapper = state.providerState.web3Wrapper;
+        const networkOfProvider = await web3Wrapper.getNetworkIdAsync();
+        if (network !== networkOfProvider) {
+            const errorMessage = `Wrong network detected. Try switching to ${Network[network]}.`;
+            errorFlasher.flashNewErrorMessage(this._store.dispatch, errorMessage, msToShowError);
         }
     };
 }
diff --git a/packages/instant/src/constants.ts b/packages/instant/src/constants.ts
index 15105b65c..34548f26f 100644
--- a/packages/instant/src/constants.ts
+++ b/packages/instant/src/constants.ts
@@ -1,7 +1,11 @@
 import { BigNumber } from '@0x/utils';
+
+import { Network } from './types';
+
 export const BIG_NUMBER_ZERO = new BigNumber(0);
 export const ETH_DECIMALS = 18;
 export const DEFAULT_ZERO_EX_CONTAINER_SELECTOR = '#zeroExInstantContainer';
+export const INJECTED_DIV_CLASS = 'zeroExInstantResetRoot';
 export const INJECTED_DIV_ID = 'zeroExInstant';
 export const WEB_3_WRAPPER_TRANSACTION_FAILED_ERROR_MSG_PREFIX = 'Transaction failed';
 export const GWEI_IN_WEI = new BigNumber(1000000000);
@@ -13,3 +17,8 @@ export const ETH_GAS_STATION_API_BASE_URL = 'https://ethgasstation.info';
 export const COINBASE_API_BASE_URL = 'https://api.coinbase.com/v2';
 export const PROGRESS_STALL_AT_WIDTH = '95%';
 export const PROGRESS_FINISH_ANIMATION_TIME_MS = 200;
+export const ETHEREUM_NODE_URL_BY_NETWORK = {
+    [Network.Mainnet]: 'https://mainnet.infura.io/',
+    [Network.Kovan]: 'https://kovan.infura.io/',
+};
+export const BLOCK_POLLING_INTERVAL_MS = 10000; // 10s
diff --git a/packages/instant/src/containers/latest_buy_quote_order_details.ts b/packages/instant/src/containers/latest_buy_quote_order_details.ts
index 092aaaf20..2b59ed3ae 100644
--- a/packages/instant/src/containers/latest_buy_quote_order_details.ts
+++ b/packages/instant/src/containers/latest_buy_quote_order_details.ts
@@ -22,7 +22,7 @@ const mapStateToProps = (state: State, _ownProps: LatestBuyQuoteOrderDetailsProp
     // use the worst case quote info
     buyQuoteInfo: oc(state).latestBuyQuote.worstCaseQuoteInfo(),
     ethUsdPrice: state.ethUsdPrice,
-    isLoading: state.quoteRequestState === AsyncProcessState.PENDING,
+    isLoading: state.quoteRequestState === AsyncProcessState.Pending,
 });
 
 export const LatestBuyQuoteOrderDetails: React.ComponentClass<LatestBuyQuoteOrderDetailsProps> = connect(
diff --git a/packages/instant/src/containers/selected_asset_buy_order_state_buttons.ts b/packages/instant/src/containers/selected_asset_buy_order_state_buttons.ts
index 72d99f844..c3a5e88b9 100644
--- a/packages/instant/src/containers/selected_asset_buy_order_state_buttons.ts
+++ b/packages/instant/src/containers/selected_asset_buy_order_state_buttons.ts
@@ -14,7 +14,7 @@ import { etherscanUtil } from '../util/etherscan';
 interface ConnectedState {
     buyQuote?: BuyQuote;
     buyOrderProcessingState: OrderProcessState;
-    assetBuyer?: AssetBuyer;
+    assetBuyer: AssetBuyer;
     affiliateInfo?: AffiliateInfo;
     onViewTransaction: () => void;
 }
@@ -29,29 +29,31 @@ interface ConnectedDispatch {
     onValidationFail: (buyQuote: BuyQuote, errorMessage: AssetBuyerError | ZeroExInstantError) => void;
 }
 export interface SelectedAssetBuyOrderStateButtons {}
-const mapStateToProps = (state: State, _ownProps: SelectedAssetBuyOrderStateButtons): ConnectedState => ({
-    buyOrderProcessingState: state.buyOrderState.processState,
-    assetBuyer: state.assetBuyer,
-    buyQuote: state.latestBuyQuote,
-    affiliateInfo: state.affiliateInfo,
-    onViewTransaction: () => {
-        if (
-            state.assetBuyer &&
-            (state.buyOrderState.processState === OrderProcessState.PROCESSING ||
-                state.buyOrderState.processState === OrderProcessState.SUCCESS ||
-                state.buyOrderState.processState === OrderProcessState.FAILURE)
-        ) {
-            const etherscanUrl = etherscanUtil.getEtherScanTxnAddressIfExists(
-                state.buyOrderState.txHash,
-                state.assetBuyer.networkId,
-            );
-            if (etherscanUrl) {
-                window.open(etherscanUrl, '_blank');
-                return;
+const mapStateToProps = (state: State, _ownProps: SelectedAssetBuyOrderStateButtons): ConnectedState => {
+    const assetBuyer = state.providerState.assetBuyer;
+    return {
+        buyOrderProcessingState: state.buyOrderState.processState,
+        assetBuyer,
+        buyQuote: state.latestBuyQuote,
+        affiliateInfo: state.affiliateInfo,
+        onViewTransaction: () => {
+            if (
+                state.buyOrderState.processState === OrderProcessState.Processing ||
+                state.buyOrderState.processState === OrderProcessState.Success ||
+                state.buyOrderState.processState === OrderProcessState.Failure
+            ) {
+                const etherscanUrl = etherscanUtil.getEtherScanTxnAddressIfExists(
+                    state.buyOrderState.txHash,
+                    assetBuyer.networkId,
+                );
+                if (etherscanUrl) {
+                    window.open(etherscanUrl, '_blank');
+                    return;
+                }
             }
-        }
-    },
-});
+        },
+    };
+};
 
 const mapDispatchToProps = (
     dispatch: Dispatch<Action>,
diff --git a/packages/instant/src/containers/selected_erc20_asset_amount_input.ts b/packages/instant/src/containers/selected_erc20_asset_amount_input.ts
index f7d56c564..784eb4bd0 100644
--- a/packages/instant/src/containers/selected_erc20_asset_amount_input.ts
+++ b/packages/instant/src/containers/selected_erc20_asset_amount_input.ts
@@ -23,7 +23,7 @@ export interface SelectedERC20AssetAmountInputProps {
 }
 
 interface ConnectedState {
-    assetBuyer?: AssetBuyer;
+    assetBuyer: AssetBuyer;
     value?: BigNumber;
     asset?: ERC20Asset;
     isDisabled: boolean;
@@ -33,7 +33,7 @@ interface ConnectedState {
 
 interface ConnectedDispatch {
     updateBuyQuote: (
-        assetBuyer?: AssetBuyer,
+        assetBuyer: AssetBuyer,
         value?: BigNumber,
         asset?: ERC20Asset,
         affiliateInfo?: AffiliateInfo,
@@ -52,15 +52,16 @@ type FinalProps = ConnectedProps & SelectedERC20AssetAmountInputProps;
 
 const mapStateToProps = (state: State, _ownProps: SelectedERC20AssetAmountInputProps): ConnectedState => {
     const processState = state.buyOrderState.processState;
-    const isEnabled = processState === OrderProcessState.NONE || processState === OrderProcessState.FAILURE;
+    const isEnabled = processState === OrderProcessState.None || processState === OrderProcessState.Failure;
     const isDisabled = !isEnabled;
     const selectedAsset =
         !_.isUndefined(state.selectedAsset) && state.selectedAsset.metaData.assetProxyId === AssetProxyId.ERC20
             ? (state.selectedAsset as ERC20Asset)
             : undefined;
     const numberOfAssetsAvailable = _.isUndefined(state.availableAssets) ? undefined : state.availableAssets.length;
+    const assetBuyer = state.providerState.assetBuyer;
     return {
-        assetBuyer: state.assetBuyer,
+        assetBuyer,
         value: state.selectedAssetAmount,
         asset: selectedAsset,
         isDisabled,
@@ -128,7 +129,7 @@ const mapDispatchToProps = (
         // reset our buy state
         dispatch(actions.setBuyOrderStateNone());
 
-        if (!_.isUndefined(value) && value.greaterThan(0) && !_.isUndefined(asset) && !_.isUndefined(assetBuyer)) {
+        if (!_.isUndefined(value) && value.greaterThan(0) && !_.isUndefined(asset)) {
             // even if it's debounced, give them the illusion it's loading
             dispatch(actions.setQuoteRequestStatePending());
             // tslint:disable-next-line:no-floating-promises
diff --git a/packages/instant/src/index.umd.ts b/packages/instant/src/index.umd.ts
index 59d1e646f..0274db30c 100644
--- a/packages/instant/src/index.umd.ts
+++ b/packages/instant/src/index.umd.ts
@@ -2,7 +2,7 @@ import * as _ from 'lodash';
 import * as React from 'react';
 import * as ReactDOM from 'react-dom';
 
-import { DEFAULT_ZERO_EX_CONTAINER_SELECTOR, INJECTED_DIV_ID } from './constants';
+import { DEFAULT_ZERO_EX_CONTAINER_SELECTOR, INJECTED_DIV_CLASS, INJECTED_DIV_ID } from './constants';
 import { ZeroExInstantOverlay, ZeroExInstantOverlayProps } from './index';
 import { assert } from './util/assert';
 
@@ -41,6 +41,7 @@ export const render = (props: ZeroExInstantOverlayProps, selector: string = DEFA
     const appendTo = appendToIfExists as Element;
     const injectedDiv = document.createElement('div');
     injectedDiv.setAttribute('id', INJECTED_DIV_ID);
+    injectedDiv.setAttribute('class', INJECTED_DIV_CLASS);
     appendTo.appendChild(injectedDiv);
     const instantOverlayProps = {
         ...props,
diff --git a/packages/instant/src/redux/async_data.ts b/packages/instant/src/redux/async_data.ts
index 0e05c13da..c3d190af2 100644
--- a/packages/instant/src/redux/async_data.ts
+++ b/packages/instant/src/redux/async_data.ts
@@ -20,18 +20,17 @@ export const asyncData = {
         }
     },
     fetchAvailableAssetDatasAndDispatchToStore: async (store: Store) => {
-        const { assetBuyer, assetMetaDataMap, network } = store.getState();
-        if (!_.isUndefined(assetBuyer)) {
-            try {
-                const assetDatas = await assetBuyer.getAvailableAssetDatasAsync();
-                const assets = assetUtils.createAssetsFromAssetDatas(assetDatas, assetMetaDataMap, network);
-                store.dispatch(actions.setAvailableAssets(assets));
-            } catch (e) {
-                const errorMessage = 'Could not find any assets';
-                errorFlasher.flashNewErrorMessage(store.dispatch, errorMessage);
-                // On error, just specify that none are available
-                store.dispatch(actions.setAvailableAssets([]));
-            }
+        const { providerState, assetMetaDataMap, network } = store.getState();
+        const assetBuyer = providerState.assetBuyer;
+        try {
+            const assetDatas = await assetBuyer.getAvailableAssetDatasAsync();
+            const assets = assetUtils.createAssetsFromAssetDatas(assetDatas, assetMetaDataMap, network);
+            store.dispatch(actions.setAvailableAssets(assets));
+        } catch (e) {
+            const errorMessage = 'Could not find any assets';
+            errorFlasher.flashNewErrorMessage(store.dispatch, errorMessage);
+            // On error, just specify that none are available
+            store.dispatch(actions.setAvailableAssets([]));
         }
     },
 };
diff --git a/packages/instant/src/redux/reducer.ts b/packages/instant/src/redux/reducer.ts
index bc435d069..4a939839a 100644
--- a/packages/instant/src/redux/reducer.ts
+++ b/packages/instant/src/redux/reducer.ts
@@ -1,4 +1,4 @@
-import { AssetBuyer, BuyQuote } from '@0x/asset-buyer';
+import { BuyQuote } from '@0x/asset-buyer';
 import { AssetProxyId, ObjectMap } from '@0x/types';
 import { BigNumber } from '@0x/utils';
 import { Web3Wrapper } from '@0x/web3-wrapper';
@@ -14,172 +14,181 @@ import {
     Network,
     OrderProcessState,
     OrderState,
+    ProviderState,
 } from '../types';
 
 import { Action, ActionTypes } from './actions';
 
-export interface State {
+// State that is required and we have defaults for, before props are passed in
+export interface DefaultState {
     network: Network;
-    assetBuyer?: AssetBuyer;
     assetMetaDataMap: ObjectMap<AssetMetaData>;
-    selectedAsset?: Asset;
-    availableAssets?: Asset[];
-    selectedAssetAmount?: BigNumber;
     buyOrderState: OrderState;
-    ethUsdPrice?: BigNumber;
-    latestBuyQuote?: BuyQuote;
-    quoteRequestState: AsyncProcessState;
-    latestErrorMessage?: string;
     latestErrorDisplayStatus: DisplayStatus;
-    affiliateInfo?: AffiliateInfo;
+    quoteRequestState: AsyncProcessState;
+}
+
+// State that is required but needs to be derived from the props
+interface PropsDerivedState {
+    providerState: ProviderState;
 }
 
-export const INITIAL_STATE: State = {
+// State that is optional
+interface OptionalState {
+    selectedAsset: Asset;
+    availableAssets: Asset[];
+    selectedAssetAmount: BigNumber;
+    ethUsdPrice: BigNumber;
+    latestBuyQuote: BuyQuote;
+    latestErrorMessage: string;
+    affiliateInfo: AffiliateInfo;
+}
+
+export type State = DefaultState & PropsDerivedState & Partial<OptionalState>;
+
+export const DEFAULT_STATE: DefaultState = {
     network: Network.Mainnet,
-    selectedAssetAmount: undefined,
-    availableAssets: undefined,
     assetMetaDataMap,
-    buyOrderState: { processState: OrderProcessState.NONE },
-    ethUsdPrice: undefined,
-    latestBuyQuote: undefined,
-    latestErrorMessage: undefined,
+    buyOrderState: { processState: OrderProcessState.None },
     latestErrorDisplayStatus: DisplayStatus.Hidden,
-    quoteRequestState: AsyncProcessState.NONE,
-    affiliateInfo: undefined,
+    quoteRequestState: AsyncProcessState.None,
 };
 
-export const reducer = (state: State = INITIAL_STATE, action: Action): State => {
-    switch (action.type) {
-        case ActionTypes.UPDATE_ETH_USD_PRICE:
-            return {
-                ...state,
-                ethUsdPrice: action.data,
-            };
-        case ActionTypes.UPDATE_SELECTED_ASSET_AMOUNT:
-            return {
-                ...state,
-                selectedAssetAmount: action.data,
-            };
-        case ActionTypes.UPDATE_LATEST_BUY_QUOTE:
-            const newBuyQuoteIfExists = action.data;
-            const shouldUpdate =
-                _.isUndefined(newBuyQuoteIfExists) || doesBuyQuoteMatchState(newBuyQuoteIfExists, state);
-            if (shouldUpdate) {
+export const createReducer = (initialState: State) => {
+    const reducer = (state: State = initialState, action: Action): State => {
+        switch (action.type) {
+            case ActionTypes.UPDATE_ETH_USD_PRICE:
                 return {
                     ...state,
-                    latestBuyQuote: newBuyQuoteIfExists,
-                    quoteRequestState: AsyncProcessState.SUCCESS,
+                    ethUsdPrice: action.data,
                 };
-            } else {
-                return state;
-            }
-
-        case ActionTypes.SET_QUOTE_REQUEST_STATE_PENDING:
-            return {
-                ...state,
-                latestBuyQuote: undefined,
-                quoteRequestState: AsyncProcessState.PENDING,
-            };
-        case ActionTypes.SET_QUOTE_REQUEST_STATE_FAILURE:
-            return {
-                ...state,
-                latestBuyQuote: undefined,
-                quoteRequestState: AsyncProcessState.FAILURE,
-            };
-        case ActionTypes.SET_BUY_ORDER_STATE_NONE:
-            return {
-                ...state,
-                buyOrderState: { processState: OrderProcessState.NONE },
-            };
-        case ActionTypes.SET_BUY_ORDER_STATE_VALIDATING:
-            return {
-                ...state,
-                buyOrderState: { processState: OrderProcessState.VALIDATING },
-            };
-        case ActionTypes.SET_BUY_ORDER_STATE_PROCESSING:
-            const processingData = action.data;
-            const { startTimeUnix, expectedEndTimeUnix } = processingData;
-            return {
-                ...state,
-                buyOrderState: {
-                    processState: OrderProcessState.PROCESSING,
-                    txHash: processingData.txHash,
-                    progress: {
-                        startTimeUnix,
-                        expectedEndTimeUnix,
-                    },
-                },
-            };
-        case ActionTypes.SET_BUY_ORDER_STATE_FAILURE:
-            const failureTxHash = action.data;
-            if ('txHash' in state.buyOrderState) {
-                if (state.buyOrderState.txHash === failureTxHash) {
-                    const { txHash, progress } = state.buyOrderState;
+            case ActionTypes.UPDATE_SELECTED_ASSET_AMOUNT:
+                return {
+                    ...state,
+                    selectedAssetAmount: action.data,
+                };
+            case ActionTypes.UPDATE_LATEST_BUY_QUOTE:
+                const newBuyQuoteIfExists = action.data;
+                const shouldUpdate =
+                    _.isUndefined(newBuyQuoteIfExists) || doesBuyQuoteMatchState(newBuyQuoteIfExists, state);
+                if (shouldUpdate) {
                     return {
                         ...state,
-                        buyOrderState: {
-                            processState: OrderProcessState.FAILURE,
-                            txHash,
-                            progress,
-                        },
+                        latestBuyQuote: newBuyQuoteIfExists,
+                        quoteRequestState: AsyncProcessState.Success,
                     };
+                } else {
+                    return state;
                 }
-            }
-            return state;
-        case ActionTypes.SET_BUY_ORDER_STATE_SUCCESS:
-            const successTxHash = action.data;
-            if ('txHash' in state.buyOrderState) {
-                if (state.buyOrderState.txHash === successTxHash) {
-                    const { txHash, progress } = state.buyOrderState;
-                    return {
-                        ...state,
-                        buyOrderState: {
-                            processState: OrderProcessState.SUCCESS,
-                            txHash,
-                            progress,
+
+            case ActionTypes.SET_QUOTE_REQUEST_STATE_PENDING:
+                return {
+                    ...state,
+                    latestBuyQuote: undefined,
+                    quoteRequestState: AsyncProcessState.Pending,
+                };
+            case ActionTypes.SET_QUOTE_REQUEST_STATE_FAILURE:
+                return {
+                    ...state,
+                    latestBuyQuote: undefined,
+                    quoteRequestState: AsyncProcessState.Failure,
+                };
+            case ActionTypes.SET_BUY_ORDER_STATE_NONE:
+                return {
+                    ...state,
+                    buyOrderState: { processState: OrderProcessState.None },
+                };
+            case ActionTypes.SET_BUY_ORDER_STATE_VALIDATING:
+                return {
+                    ...state,
+                    buyOrderState: { processState: OrderProcessState.Validating },
+                };
+            case ActionTypes.SET_BUY_ORDER_STATE_PROCESSING:
+                const processingData = action.data;
+                const { startTimeUnix, expectedEndTimeUnix } = processingData;
+                return {
+                    ...state,
+                    buyOrderState: {
+                        processState: OrderProcessState.Processing,
+                        txHash: processingData.txHash,
+                        progress: {
+                            startTimeUnix,
+                            expectedEndTimeUnix,
                         },
-                    };
+                    },
+                };
+            case ActionTypes.SET_BUY_ORDER_STATE_FAILURE:
+                const failureTxHash = action.data;
+                if ('txHash' in state.buyOrderState) {
+                    if (state.buyOrderState.txHash === failureTxHash) {
+                        const { txHash, progress } = state.buyOrderState;
+                        return {
+                            ...state,
+                            buyOrderState: {
+                                processState: OrderProcessState.Failure,
+                                txHash,
+                                progress,
+                            },
+                        };
+                    }
                 }
-            }
-            return state;
-        case ActionTypes.SET_ERROR_MESSAGE:
-            return {
-                ...state,
-                latestErrorMessage: action.data,
-                latestErrorDisplayStatus: DisplayStatus.Present,
-            };
-        case ActionTypes.HIDE_ERROR:
-            return {
-                ...state,
-                latestErrorDisplayStatus: DisplayStatus.Hidden,
-            };
-        case ActionTypes.CLEAR_ERROR:
-            return {
-                ...state,
-                latestErrorMessage: undefined,
-                latestErrorDisplayStatus: DisplayStatus.Hidden,
-            };
-        case ActionTypes.UPDATE_SELECTED_ASSET:
-            return {
-                ...state,
-                selectedAsset: action.data,
-            };
-        case ActionTypes.RESET_AMOUNT:
-            return {
-                ...state,
-                latestBuyQuote: undefined,
-                quoteRequestState: AsyncProcessState.NONE,
-                buyOrderState: { processState: OrderProcessState.NONE },
-                selectedAssetAmount: undefined,
-            };
-        case ActionTypes.SET_AVAILABLE_ASSETS:
-            return {
-                ...state,
-                availableAssets: action.data,
-            };
-        default:
-            return state;
-    }
+                return state;
+            case ActionTypes.SET_BUY_ORDER_STATE_SUCCESS:
+                const successTxHash = action.data;
+                if ('txHash' in state.buyOrderState) {
+                    if (state.buyOrderState.txHash === successTxHash) {
+                        const { txHash, progress } = state.buyOrderState;
+                        return {
+                            ...state,
+                            buyOrderState: {
+                                processState: OrderProcessState.Success,
+                                txHash,
+                                progress,
+                            },
+                        };
+                    }
+                }
+                return state;
+            case ActionTypes.SET_ERROR_MESSAGE:
+                return {
+                    ...state,
+                    latestErrorMessage: action.data,
+                    latestErrorDisplayStatus: DisplayStatus.Present,
+                };
+            case ActionTypes.HIDE_ERROR:
+                return {
+                    ...state,
+                    latestErrorDisplayStatus: DisplayStatus.Hidden,
+                };
+            case ActionTypes.CLEAR_ERROR:
+                return {
+                    ...state,
+                    latestErrorMessage: undefined,
+                    latestErrorDisplayStatus: DisplayStatus.Hidden,
+                };
+            case ActionTypes.UPDATE_SELECTED_ASSET:
+                return {
+                    ...state,
+                    selectedAsset: action.data,
+                };
+            case ActionTypes.RESET_AMOUNT:
+                return {
+                    ...state,
+                    latestBuyQuote: undefined,
+                    quoteRequestState: AsyncProcessState.None,
+                    buyOrderState: { processState: OrderProcessState.None },
+                    selectedAssetAmount: undefined,
+                };
+            case ActionTypes.SET_AVAILABLE_ASSETS:
+                return {
+                    ...state,
+                    availableAssets: action.data,
+                };
+            default:
+                return state;
+        }
+    };
+    return reducer;
 };
 
 const doesBuyQuoteMatchState = (buyQuote: BuyQuote, state: State): boolean => {
diff --git a/packages/instant/src/redux/store.ts b/packages/instant/src/redux/store.ts
index 01deb8690..20710765d 100644
--- a/packages/instant/src/redux/store.ts
+++ b/packages/instant/src/redux/store.ts
@@ -2,12 +2,13 @@ import * as _ from 'lodash';
 import { createStore, Store as ReduxStore } from 'redux';
 import { devToolsEnhancer } from 'redux-devtools-extension/developmentOnly';
 
-import { reducer, State } from './reducer';
+import { createReducer, State } from './reducer';
 
 export type Store = ReduxStore<State>;
 
 export const store = {
-    create: (state: State): Store => {
-        return createStore(reducer, state, devToolsEnhancer({}));
+    create: (initialState: State): Store => {
+        const reducer = createReducer(initialState);
+        return createStore(reducer, initialState, devToolsEnhancer({}));
     },
 };
diff --git a/packages/instant/src/style/theme.ts b/packages/instant/src/style/theme.ts
index 0bd8ce4e0..2653c38f7 100644
--- a/packages/instant/src/style/theme.ts
+++ b/packages/instant/src/style/theme.ts
@@ -1,6 +1,6 @@
 import * as styledComponents from 'styled-components';
 
-const { default: styled, css, keyframes, withTheme, ThemeProvider } = styledComponents;
+const { default: styled, css, keyframes, withTheme, createGlobalStyle, ThemeProvider } = styledComponents;
 
 export type Theme = { [key in ColorOption]: string };
 
@@ -38,4 +38,4 @@ export const transparentWhite = 'rgba(255,255,255,0.3)';
 export const overlayBlack = 'rgba(0, 0, 0, 0.6)';
 export const completelyTransparent = 'rga(0, 0, 0, 0)';
 
-export { styled, css, keyframes, withTheme, ThemeProvider };
+export { styled, css, keyframes, withTheme, createGlobalStyle, ThemeProvider };
diff --git a/packages/instant/src/types.ts b/packages/instant/src/types.ts
index 449bc0f31..d65f70008 100644
--- a/packages/instant/src/types.ts
+++ b/packages/instant/src/types.ts
@@ -1,20 +1,23 @@
-import { AssetProxyId, ObjectMap } from '@0x/types';
+import { AssetBuyer, BigNumber } from '@0x/asset-buyer';
+import { AssetProxyId, ObjectMap, SignedOrder } from '@0x/types';
+import { Web3Wrapper } from '@0x/web3-wrapper';
+import { Provider } from 'ethereum-types';
 
 // Reusable
 export type Maybe<T> = T | undefined;
 export enum AsyncProcessState {
-    NONE = 'None',
-    PENDING = 'Pending',
-    SUCCESS = 'Success',
-    FAILURE = 'Failure',
+    None = 'NONE',
+    Pending = 'PENDING',
+    Success = 'SUCCESS',
+    Failure = 'FAILURE',
 }
 
 export enum OrderProcessState {
-    NONE = 'None',
-    VALIDATING = 'Validating',
-    PROCESSING = 'Processing',
-    SUCCESS = 'Success',
-    FAILURE = 'Failure',
+    None = 'NONE',
+    Validating = 'VALIDATING',
+    Processing = 'PROCESSING',
+    Success = 'SUCCESS',
+    Failure = 'FAILURE',
 }
 
 export interface SimulatedProgress {
@@ -23,10 +26,10 @@ export interface SimulatedProgress {
 }
 
 interface OrderStatePreTx {
-    processState: OrderProcessState.NONE | OrderProcessState.VALIDATING;
+    processState: OrderProcessState.None | OrderProcessState.Validating;
 }
 interface OrderStatePostTx {
-    processState: OrderProcessState.PROCESSING | OrderProcessState.SUCCESS | OrderProcessState.FAILURE;
+    processState: OrderProcessState.Processing | OrderProcessState.Success | OrderProcessState.Failure;
     txHash: string;
     progress: SimulatedProgress;
 }
@@ -89,3 +92,31 @@ export interface AffiliateInfo {
     feeRecipient: string;
     feePercentage: number;
 }
+
+export interface ProviderState {
+    provider: Provider;
+    assetBuyer: AssetBuyer;
+    web3Wrapper: Web3Wrapper;
+    account: Account;
+}
+
+export enum AccountState {
+    Loading = 'LOADING',
+    Ready = 'READY',
+    Locked = 'LOCKED', // TODO(bmillman): break this up into locked / privacy mode enabled
+    Error = 'ERROR',
+    None = 'NONE,',
+}
+
+export interface AccountReady {
+    state: AccountState.Ready;
+    address: string;
+    ethBalanceInWei?: BigNumber;
+}
+export interface AccountNotReady {
+    state: AccountState.None | AccountState.Loading | AccountState.Locked | AccountState.Error;
+}
+
+export type Account = AccountReady | AccountNotReady;
+
+export type OrderSource = string | SignedOrder[];
diff --git a/packages/instant/src/util/asset_buyer_factory.ts b/packages/instant/src/util/asset_buyer_factory.ts
new file mode 100644
index 000000000..5ba46223c
--- /dev/null
+++ b/packages/instant/src/util/asset_buyer_factory.ts
@@ -0,0 +1,17 @@
+import { AssetBuyer, AssetBuyerOpts } from '@0x/asset-buyer';
+import { Provider } from 'ethereum-types';
+import * as _ from 'lodash';
+
+import { Network, OrderSource } from '../types';
+
+export const assetBuyerFactory = {
+    getAssetBuyer: (provider: Provider, orderSource: OrderSource, network: Network): AssetBuyer => {
+        const assetBuyerOptions: Partial<AssetBuyerOpts> = {
+            networkId: network,
+        };
+        const assetBuyer = _.isString(orderSource)
+            ? AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl(provider, orderSource, assetBuyerOptions)
+            : AssetBuyer.getAssetBuyerForProvidedOrders(provider, orderSource, assetBuyerOptions);
+        return assetBuyer;
+    },
+};
diff --git a/packages/instant/src/util/injected_provider.ts b/packages/instant/src/util/injected_provider.ts
deleted file mode 100644
index 40f9e2da5..000000000
--- a/packages/instant/src/util/injected_provider.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import { Provider } from 'ethereum-types';
-import * as _ from 'lodash';
-
-export const getInjectedProvider = (): Provider => {
-    const injectedProviderIfExists = (window as any).ethereum;
-    if (!_.isUndefined(injectedProviderIfExists)) {
-        // TODO: call enable here when implementing wallet connection flow
-        return injectedProviderIfExists;
-    }
-    const injectedWeb3IfExists = (window as any).web3;
-    if (!_.isUndefined(injectedWeb3IfExists.currentProvider)) {
-        return injectedWeb3IfExists.currentProvider;
-    } else {
-        throw new Error(`No injected web3 found`);
-    }
-};
diff --git a/packages/instant/src/util/provider_factory.ts b/packages/instant/src/util/provider_factory.ts
new file mode 100644
index 000000000..603f7674d
--- /dev/null
+++ b/packages/instant/src/util/provider_factory.ts
@@ -0,0 +1,34 @@
+import { EmptyWalletSubprovider, RPCSubprovider, Web3ProviderEngine } from '@0x/subproviders';
+import { Provider } from 'ethereum-types';
+import * as _ from 'lodash';
+
+import { BLOCK_POLLING_INTERVAL_MS, ETHEREUM_NODE_URL_BY_NETWORK } from '../constants';
+import { Maybe, Network } from '../types';
+
+export const providerFactory = {
+    getInjectedProviderIfExists: (): Maybe<Provider> => {
+        const injectedProviderIfExists = (window as any).ethereum;
+        if (!_.isUndefined(injectedProviderIfExists)) {
+            return injectedProviderIfExists;
+        }
+        const injectedWeb3IfExists = (window as any).web3;
+        if (!_.isUndefined(injectedWeb3IfExists) && !_.isUndefined(injectedWeb3IfExists.currentProvider)) {
+            return injectedWeb3IfExists.currentProvider;
+        }
+        return undefined;
+    },
+    getFallbackNoSigningProvider: (network: Network): Provider => {
+        const providerEngine = new Web3ProviderEngine({
+            pollingInterval: BLOCK_POLLING_INTERVAL_MS,
+        });
+        // Intercept calls to `eth_accounts` and always return empty
+        providerEngine.addProvider(new EmptyWalletSubprovider());
+        // Construct an RPC subprovider, all data based requests will be sent via the RPCSubprovider
+        // TODO(bmillman): make this more resilient to infura failures
+        const rpcUrl = ETHEREUM_NODE_URL_BY_NETWORK[network];
+        providerEngine.addProvider(new RPCSubprovider(rpcUrl));
+        // // Start the Provider Engine
+        providerEngine.start();
+        return providerEngine;
+    },
+};
diff --git a/packages/instant/src/util/provider_state_factory.ts b/packages/instant/src/util/provider_state_factory.ts
new file mode 100644
index 000000000..18b188d89
--- /dev/null
+++ b/packages/instant/src/util/provider_state_factory.ts
@@ -0,0 +1,69 @@
+import { Web3Wrapper } from '@0x/web3-wrapper';
+import { Provider } from 'ethereum-types';
+import * as _ from 'lodash';
+
+import { AccountNotReady, AccountState, Maybe, Network, OrderSource, ProviderState } from '../types';
+
+import { assetBuyerFactory } from './asset_buyer_factory';
+import { providerFactory } from './provider_factory';
+
+const LOADING_ACCOUNT: AccountNotReady = {
+    state: AccountState.Loading,
+};
+const NO_ACCOUNT: AccountNotReady = {
+    state: AccountState.None,
+};
+
+export const providerStateFactory = {
+    getInitialProviderState: (orderSource: OrderSource, network: Network, provider?: Provider): ProviderState => {
+        if (!_.isUndefined(provider)) {
+            return providerStateFactory.getInitialProviderStateFromProvider(orderSource, network, provider);
+        }
+        const providerStateFromWindowIfExits = providerStateFactory.getInitialProviderStateFromWindowIfExists(
+            orderSource,
+            network,
+        );
+        if (providerStateFromWindowIfExits) {
+            return providerStateFromWindowIfExits;
+        } else {
+            return providerStateFactory.getInitialProviderStateFallback(orderSource, network);
+        }
+    },
+    getInitialProviderStateFromProvider: (
+        orderSource: OrderSource,
+        network: Network,
+        provider: Provider,
+    ): ProviderState => {
+        const providerState: ProviderState = {
+            provider,
+            web3Wrapper: new Web3Wrapper(provider),
+            assetBuyer: assetBuyerFactory.getAssetBuyer(provider, orderSource, network),
+            account: LOADING_ACCOUNT,
+        };
+        return providerState;
+    },
+    getInitialProviderStateFromWindowIfExists: (orderSource: OrderSource, network: Network): Maybe<ProviderState> => {
+        const injectedProviderIfExists = providerFactory.getInjectedProviderIfExists();
+        if (!_.isUndefined(injectedProviderIfExists)) {
+            const providerState: ProviderState = {
+                provider: injectedProviderIfExists,
+                web3Wrapper: new Web3Wrapper(injectedProviderIfExists),
+                assetBuyer: assetBuyerFactory.getAssetBuyer(injectedProviderIfExists, orderSource, network),
+                account: LOADING_ACCOUNT,
+            };
+            return providerState;
+        } else {
+            return undefined;
+        }
+    },
+    getInitialProviderStateFallback: (orderSource: OrderSource, network: Network): ProviderState => {
+        const provider = providerFactory.getFallbackNoSigningProvider(network);
+        const providerState: ProviderState = {
+            provider,
+            web3Wrapper: new Web3Wrapper(provider),
+            assetBuyer: assetBuyerFactory.getAssetBuyer(provider, orderSource, network),
+            account: NO_ACCOUNT,
+        };
+        return providerState;
+    },
+};