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-rw-r--r--packages/base-contract/.npmignore5
-rw-r--r--packages/base-contract/CHANGELOG.md5
-rw-r--r--packages/base-contract/README.md53
-rw-r--r--packages/base-contract/package.json39
-rw-r--r--packages/base-contract/src/index.ts68
-rw-r--r--packages/base-contract/tsconfig.json11
-rw-r--r--packages/base-contract/tslint.json3
7 files changed, 184 insertions, 0 deletions
diff --git a/packages/base-contract/.npmignore b/packages/base-contract/.npmignore
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index 000000000..ad5ffcd56
--- /dev/null
+++ b/packages/base-contract/.npmignore
@@ -0,0 +1,5 @@
+.*
+yarn-error.log
+/scripts/
+/src/
+tsconfig.json
diff --git a/packages/base-contract/CHANGELOG.md b/packages/base-contract/CHANGELOG.md
new file mode 100644
index 000000000..74e983f1c
--- /dev/null
+++ b/packages/base-contract/CHANGELOG.md
@@ -0,0 +1,5 @@
+# CHANGELOG
+
+## v0.0.1 - _TBD, 2018_
+
+ * Initial release (#TBD)
diff --git a/packages/base-contract/README.md b/packages/base-contract/README.md
new file mode 100644
index 000000000..ff0d4d303
--- /dev/null
+++ b/packages/base-contract/README.md
@@ -0,0 +1,53 @@
+## @0xproject/base-contract
+
+BaseContract to derive all auto-generated wrappers from
+
+## Installation
+
+```bash
+yarn add @0xproject/base-contract
+```
+
+## Usage
+
+```javascript
+import { BaseContract } from '@0xproject/base-contract';
+```
+
+## Contributing
+
+We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install Dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+```bash
+yarn build
+```
+
+or
+
+```bash
+yarn build:watch
+```
+
+### Lint
+
+```bash
+yarn lint
+```
diff --git a/packages/base-contract/package.json b/packages/base-contract/package.json
new file mode 100644
index 000000000..6edbed161
--- /dev/null
+++ b/packages/base-contract/package.json
@@ -0,0 +1,39 @@
+{
+ "name": "@0xproject/base-contract",
+ "version": "0.0.1",
+ "description": "0x Base TS contract",
+ "main": "lib/index.js",
+ "types": "lib/index.d.ts",
+ "scripts": {
+ "build:watch": "tsc -w",
+ "build": "tsc",
+ "clean": "shx rm -rf lib",
+ "lint": "tslint --project . 'src/**/*.ts'"
+ },
+ "license": "Apache-2.0",
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/0xProject/0x.js.git"
+ },
+ "bugs": {
+ "url": "https://github.com/0xProject/0x.js/issues"
+ },
+ "homepage": "https://github.com/0xProject/0x.js/packages/base-contract/README.md",
+ "devDependencies": {
+ "@0xproject/tslint-config": "^0.4.9",
+ "@types/lodash": "^4.14.86",
+ "npm-run-all": "^4.1.2",
+ "shx": "^0.2.2",
+ "tslint": "5.8.0",
+ "typescript": "2.7.1",
+ "ethers-typescript-typings": "^0.0.1",
+ "web3-typescript-typings": "^0.9.11"
+ },
+ "dependencies": {
+ "@0xproject/types": "^0.2.3",
+ "@0xproject/web3-wrapper": "^0.1.14",
+ "ethers-contracts": "^2.2.1",
+ "lodash": "^4.17.4",
+ "web3": "^0.20.0"
+ }
+}
diff --git a/packages/base-contract/src/index.ts b/packages/base-contract/src/index.ts
new file mode 100644
index 000000000..cc1e16a13
--- /dev/null
+++ b/packages/base-contract/src/index.ts
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+import { TxData, TxDataPayable } from '@0xproject/types';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import * as ethersContracts from 'ethers-contracts';
+import * as _ from 'lodash';
+import * as Web3 from 'web3';
+
+export class BaseContract {
+ protected _ethersInterface: ethersContracts.Interface;
+ protected _web3Wrapper: Web3Wrapper;
+ public abi: Web3.ContractAbi;
+ public address: string;
+ protected static _transformABIData(
+ abis: Web3.DataItem[],
+ values: any[],
+ transformation: (type: string, value: any) => any,
+ ): any {
+ return _.map(values, (value: any, i: number) =>
+ BaseContract._transformTypedData(abis[i].type, value, transformation),
+ );
+ }
+ protected static _lowercaseAddress(type: string, value: string): string {
+ return type === 'address' ? value.toLowerCase() : value;
+ }
+ protected static _bigNumberToString(type: string, value: string): string {
+ return _.isObject(value) && (value as any).isBigNumber ? value.toString() : value;
+ }
+ private static _transformTypedData(
+ type: string,
+ values: any,
+ transformation: (type: string, value: any) => any,
+ ): any {
+ const trailingArrayRegex = /\[\d*\]$/;
+ if (type.match(trailingArrayRegex)) {
+ const arrayItemType = type.replace(trailingArrayRegex, '');
+ return _.map(values, value => this._transformTypedData(arrayItemType, value, transformation));
+ } else {
+ return transformation(type, values);
+ }
+ }
+ protected async _applyDefaultsToTxDataAsync<T extends Partial<TxData | TxDataPayable>>(
+ txData: T,
+ estimateGasAsync?: (txData: T) => Promise<number>,
+ ): Promise<TxData> {
+ // Gas amount sourced with the following priorities:
+ // 1. Optional param passed in to public method call
+ // 2. Global config passed in at library instantiation
+ // 3. Gas estimate calculation + safety margin
+ const removeUndefinedProperties = _.pickBy;
+ const txDataWithDefaults = {
+ to: this.address,
+ ...removeUndefinedProperties(this._web3Wrapper.getContractDefaults()),
+ ...removeUndefinedProperties(txData as any),
+ // HACK: TS can't prove that T is spreadable.
+ // Awaiting https://github.com/Microsoft/TypeScript/pull/13288 to be merged
+ };
+ if (_.isUndefined(txDataWithDefaults.gas) && !_.isUndefined(estimateGasAsync)) {
+ const estimatedGas = await estimateGasAsync(txData);
+ txDataWithDefaults.gas = estimatedGas;
+ }
+ return txDataWithDefaults;
+ }
+ constructor(web3Wrapper: Web3Wrapper, abi: Web3.ContractAbi, address: string) {
+ this._web3Wrapper = web3Wrapper;
+ this.abi = abi;
+ this.address = address;
+ this._ethersInterface = new ethersContracts.Interface(abi);
+ }
+}
diff --git a/packages/base-contract/tsconfig.json b/packages/base-contract/tsconfig.json
new file mode 100644
index 000000000..8114d99cd
--- /dev/null
+++ b/packages/base-contract/tsconfig.json
@@ -0,0 +1,11 @@
+{
+ "extends": "../../tsconfig",
+ "compilerOptions": {
+ "outDir": "lib"
+ },
+ "include": [
+ "./src/**/*",
+ "../../node_modules/web3-typescript-typings/index.d.ts",
+ "../../node_modules/ethers-typescript-typings/index.d.ts"
+ ]
+}
diff --git a/packages/base-contract/tslint.json b/packages/base-contract/tslint.json
new file mode 100644
index 000000000..ffaefe83a
--- /dev/null
+++ b/packages/base-contract/tslint.json
@@ -0,0 +1,3 @@
+{
+ "extends": ["@0xproject/tslint-config"]
+}