Add Dockerfile for lightcone_v2.js and fix importing error when using ethereumjs-abi (#286)

Author: xiaowheat

packages/lightcone_v2.js/Dockerfile

@@ -0,0 +1,29 @@
+FROM node:10.16
+
+# Install Protocol Buffers tool
+RUN apt-get -qq update && apt-get -qq install -y \
+  unzip
+
+RUN git clone https://github.com/grpc/grpc-web /github/grpc-web
+
+RUN curl -sSL https://github.com/protocolbuffers/protobuf/releases/download/v3.7.1/\
+protoc-3.7.1-linux-x86_64.zip -o /tmp/protoc.zip && \
+  cd /tmp && \
+  unzip -qq protoc.zip && \
+  cp /tmp/bin/protoc /usr/local/bin/protoc
+
+RUN curl -sSL https://github.com/grpc/grpc-web/releases/download/1.0.4/\
+protoc-gen-grpc-web-1.0.4-linux-x86_64 -o /usr/local/bin/protoc-gen-grpc-web && \
+  chmod +x /usr/local/bin/protoc-gen-grpc-web
+
+# Add files
+ADD tslint.json ./tslint.json
+ADD tsconfig.json ./tsconfig.json
+ADD globals.d.ts ./globals.d.ts
+ADD package.json ./package.json
+
+ADD src ./src
+ADD test ./test
+
+# Build package
+RUN npm install && npm run build

packages/lightcone_v2.js/README.md

@@ -7,3 +7,13 @@
 
 # Entrypoint of library
 `src/index.ts`
+
+# How to build a Docker?
+```
+docker build -t lightcone-v2-js -f Dockerfile .
+```
+
+# How to run tests in Docker?
+```
+docker run --rm lightcone-v2-js sh -c 'npm run test'
+```

packages/lightcone_v2.js/src/lib/wallet/ethereum/contracts/Contract.ts

@@ -1,6 +1,6 @@
 import AbiFunction from './AbiFunction';
 import {toHex} from '../../common/formatter';
-import {methodID} from 'ethereumjs-abi';
+var ethereumjs_abi = require('ethereumjs-abi')
 
 export default class Contract {
 
@@ -11,7 +11,7 @@ export default class Contract {
         this.abiFunctions = funAbi.reduce((acc, item) => {
             const inputTypes = item.inputs.map(({type}) => type);
             const key = `${item.name}(${inputTypes.toString()})`;
-            const methodHash = methodID(item.name, inputTypes);
+            const methodHash = ethereumjs_abi.methodID(item.name, inputTypes);
             return ({
                 ...acc,
                 [item.name]: new AbiFunction(item),

packages/lightcone_v2.js/src/lib/wallet/ethereum/token.ts

@@ -4,9 +4,10 @@
 import validator from './validator';
 import Transaction from './transaction';
 import request from '../common/request';
-import {rawDecode} from 'ethereumjs-abi'
 import {toBuffer} from "../common/formatter";
 
+var ethereumjs_abi = require('ethereumjs-abi')
+
 // HACK: What is the host in wallet/token?
 const host = 'host';
 
@@ -140,19 +141,19 @@ export default class Token {
 
     async getName() {
         const response = await this.getConfig('name');
-        const results = rawDecode(['string'], toBuffer(response['result']));
+        const results = ethereumjs_abi.rawDecode(['string'], toBuffer(response['result']));
         return results.length > 0 ? results[0] : '';
     }
 
     async getSymbol() {
         const response = await this.getConfig('symbol');
-        const results = rawDecode(['string'], toBuffer(response['result']));
+        const results = ethereumjs_abi.rawDecode(['string'], toBuffer(response['result']));
         return results.length > 0 ? results[0] : '';
     }
 
     async getDecimals() {
         const response = await this.getConfig('decimals');
-        const results = rawDecode(['uint'], toBuffer(response['result']));
+        const results = ethereumjs_abi.rawDecode(['uint'], toBuffer(response['result']));
         return results.length > 0 ? results[0].toNumber() : -1;
     }