Merge branch 'development' into feature/addSubproviders

* development: (50 commits)
  Add PR number to changelog
  Address feedback
  Add requestId to subscription messages and update json-schemas
  Remove isomorphic-fetch types from contracts package
  Update README
  Regenerate files
  Make it private
  Change package name
  Update README
  Make fileExtension configurable
  Rename abi-gen to typed-contracts
  Add docs for typed-contracts
  Remove TODOs
  Introduce separate ContextData type and rework it
  Check ABI is defined
  Introduce a const for 'contract.mustache'
  Improve error message
  Reuse util
  Fix a typo
  Introduce a const for 'function'
  ...

# Conflicts:
#	yarn.lock

7 files changed, 120 insertions, 0 deletions

diff --git a/packages/abi-gen-templates/contract.mustache b/packages/abi-gen-templates/contract.mustache
new file mode 100644
index 000000000..27783fb6e
--- /dev/null
+++ b/packages/abi-gen-templates/contract.mustache
@@ -0,0 +1,27 @@
+/**
+ * This file is auto-generated using abi-gen. Don't edit directly.
+ * Templates can be found at https://github.com/0xProject/0x.js/tree/development/packages/abi-gen-templates.
+ */
+import {BigNumber} from 'bignumber.js';
+import * as Web3 from 'web3';
+
+import {TxData, TxDataPayable} from '../../types';
+import {classUtils} from '../../utils/class_utils';
+import {promisify} from '../../utils/promisify';
+
+import {BaseContract} from './base_contract';
+
+export class {{contractName}}Contract extends BaseContract {
+{{#each methods}}
+    {{#this.constant}}
+    {{> call contractName=../contractName}}
+    {{/this.constant}}
+    {{^this.constant}}
+    {{> tx contractName=../contractName}}
+    {{/this.constant}}
+{{/each}}
+    constructor(web3ContractInstance: Web3.ContractInstance, defaults: Partial<TxData>) {
+        super(web3ContractInstance, defaults);
+        classUtils.bindAll(this, ['web3ContractInstance', 'defaults']);
+    }
+} // tslint:disable:max-file-line-count
diff --git a/packages/abi-gen-templates/package.json b/packages/abi-gen-templates/package.json
new file mode 100644
index 000000000..104013c05
--- /dev/null
+++ b/packages/abi-gen-templates/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "abi-gen-templates",
+  "private": true,
+  "version": "0.0.0",
+  "description": "Handlebars templates to generate TS contract wrappers",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/0xProject/0x.js.git"
+  },
+  "license": "Apache-2.0",
+  "bugs": {
+    "url": "https://github.com/0xProject/0x.js/issues"
+  },
+  "homepage": "https://github.com/0xProject/0x.js/packages/abi-gen-templates/README.md"
+}
diff --git a/packages/abi-gen-templates/partials/call.mustache b/packages/abi-gen-templates/partials/call.mustache
new file mode 100644
index 000000000..ef4bda724
--- /dev/null
+++ b/packages/abi-gen-templates/partials/call.mustache
@@ -0,0 +1,15 @@
+public {{this.name}} = {
+    async callAsync(
+    {{> typed_params inputs=inputs}}
+        defaultBlock?: Web3.BlockParam,
+    ): Promise<{{> return_type outputs=outputs}}> {
+        const self = this as {{contractName}}Contract;
+        const result = await promisify<{{> return_type outputs=outputs}}>(
+            self.web3ContractInstance.{{this.name}}.call,
+            self.web3ContractInstance,
+        )(
+            {{> params inputs=inputs}}
+        );
+        return result;
+    },
+};
diff --git a/packages/abi-gen-templates/partials/params.mustache b/packages/abi-gen-templates/partials/params.mustache
new file mode 100644
index 000000000..ac5d4ae85
--- /dev/null
+++ b/packages/abi-gen-templates/partials/params.mustache
@@ -0,0 +1,3 @@
+{{#each inputs}}
+{{name}},
+{{/each}}
diff --git a/packages/abi-gen-templates/partials/return_type.mustache b/packages/abi-gen-templates/partials/return_type.mustache
new file mode 100644
index 000000000..383961a40
--- /dev/null
+++ b/packages/abi-gen-templates/partials/return_type.mustache
@@ -0,0 +1,6 @@
+{{#singleReturnValue}}
+{{#returnType outputs.0.type}}{{/returnType}}
+{{/singleReturnValue}}
+{{^singleReturnValue}}
+[{{#each outputs}}{{#returnType type}}{{/returnType}}{{#unless @last}}, {{/unless}}{{/each}}]
+{{/singleReturnValue}}
diff --git a/packages/abi-gen-templates/partials/tx.mustache b/packages/abi-gen-templates/partials/tx.mustache
new file mode 100644
index 000000000..8a43e5319
--- /dev/null
+++ b/packages/abi-gen-templates/partials/tx.mustache
@@ -0,0 +1,51 @@
+public {{this.name}} = {
+    async sendTransactionAsync(
+    {{> typed_params inputs=inputs}}
+    {{#this.payable}}
+        txData: TxDataPayable = {},
+    {{/this.payable}}
+    {{^this.payable}}
+        txData: TxData = {},
+    {{/this.payable}}
+    ): Promise<string> {
+        const self = this as {{contractName}}Contract;
+        const txDataWithDefaults = await self.applyDefaultsToTxDataAsync(
+            txData,
+            self.{{this.name}}.estimateGasAsync.bind(
+                self,
+                {{> params inputs=inputs}}
+            ),
+        );
+        const txHash = await promisify<string>(
+            self.web3ContractInstance.{{this.name}}, self.web3ContractInstance,
+        )(
+            {{> params inputs=inputs}}
+            txDataWithDefaults,
+        );
+        return txHash;
+    },
+    async estimateGasAsync(
+    {{> typed_params inputs=inputs}}
+        txData: TxData = {},
+    ): Promise<number> {
+        const self = this as {{contractName}}Contract;
+        const txDataWithDefaults = await self.applyDefaultsToTxDataAsync(
+            txData,
+        );
+        const gas = await promisify<number>(
+            self.web3ContractInstance.{{this.name}}.estimateGas, self.web3ContractInstance,
+        )(
+            {{> params inputs=inputs}}
+            txDataWithDefaults,
+        );
+        return gas;
+    },
+    getABIEncodedTransactionData(
+    {{> typed_params inputs=inputs}}
+        txData: TxData = {},
+    ): string {
+        const self = this as {{contractName}}Contract;
+        const abiEncodedTransactionData = self.web3ContractInstance.{{this.name}}.getData();
+        return abiEncodedTransactionData;
+    },
+};
diff --git a/packages/abi-gen-templates/partials/typed_params.mustache b/packages/abi-gen-templates/partials/typed_params.mustache
new file mode 100644
index 000000000..3ea4b2e95
--- /dev/null
+++ b/packages/abi-gen-templates/partials/typed_params.mustache
@@ -0,0 +1,3 @@
+{{#each inputs}}
+    {{name}}: {{#parameterType type}}{{/parameterType}},
+{{/each}}