1 files changed, 8 insertions, 21 deletions
diff --git a/packages/instant/src/components/asset_amount_input.tsx b/packages/instant/src/components/asset_amount_input.tsx
index 7c6b03ee9..9f4b5861a 100644
--- a/packages/instant/src/components/asset_amount_input.tsx
+++ b/packages/instant/src/components/asset_amount_input.tsx
@@ -1,18 +1,19 @@
-import { AssetProxyId } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 import * as React from 'react';
+import { oc } from 'ts-optchain';
 
-import { assetMetaData } from '../data/asset_meta_data';
 import { ColorOption } from '../style/theme';
+import { ERC20Asset } from '../types';
 import { util } from '../util/util';
 
 import { AmountInput, AmountInputProps } from './amount_input';
 import { Container, Text } from './ui';
 
+// Asset amounts only apply to ERC20 assets
 export interface AssetAmountInputProps extends AmountInputProps {
-    assetData?: string;
-    onChange: (value?: BigNumber, assetData?: string) => void;
+    asset?: ERC20Asset;
+    onChange: (value?: BigNumber, asset?: ERC20Asset) => void;
 }
 
 export class AssetAmountInput extends React.Component<AssetAmountInputProps> {
@@ -20,33 +21,19 @@ export class AssetAmountInput extends React.Component<AssetAmountInputProps> {
         onChange: util.boundNoop,
     };
     public render(): React.ReactNode {
-        const { assetData, onChange, ...rest } = this.props;
+        const { asset, onChange, ...rest } = this.props;
         return (
             <Container>
                 <AmountInput {...rest} onChange={this._handleChange} />
                 <Container display="inline-block" marginLeft="10px">
                     <Text fontSize={rest.fontSize} fontColor={ColorOption.white} textTransform="uppercase">
-                        {this._getAssetSymbolLabel()}
+                        {oc(asset).metaData.symbol()}
                     </Text>
                 </Container>
             </Container>
         );
     }
-    private readonly _getAssetSymbolLabel = (): string => {
-        const unknownLabel = '???';
-        if (_.isUndefined(this.props.assetData)) {
-            return unknownLabel;
-        }
-        const metaData = assetMetaData[this.props.assetData];
-        if (_.isUndefined(metaData)) {
-            return unknownLabel;
-        }
-        if (metaData.assetProxyId === AssetProxyId.ERC20) {
-            return metaData.symbol;
-        }
-        return unknownLabel;
-    };
     private readonly _handleChange = (value?: BigNumber): void => {
-        this.props.onChange(value, this.props.assetData);
+        this.props.onChange(value, this.props.asset);
     };
 }