diff --git a/src/paymentservice/.gitignore b/src/paymentservice/.gitignore new file mode 100644 index 0000000..fd4f2b0 --- /dev/null +++ b/src/paymentservice/.gitignore @@ -0,0 +1,2 @@ +node_modules +.DS_Store diff --git a/src/paymentservice/index.js b/src/paymentservice/index.js new file mode 100644 index 0000000..bf13222 --- /dev/null +++ b/src/paymentservice/index.js @@ -0,0 +1,27 @@ +/* + * Copyright 2018 Google LLC + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * https://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +'use strict'; + +const HipsterShopServer = require('./server'); + +const PORT = process.env['PORT']; +const PROTO_PATH = __dirname + '/../../pb/demo.proto'; + +const server = new HipsterShopServer(PROTO_PATH, PORT); + +server.listen(); + diff --git a/src/paymentservice/package-lock.json b/src/paymentservice/package-lock.json new file mode 100644 index 0000000..b037049 --- /dev/null +++ b/src/paymentservice/package-lock.json @@ -0,0 +1,783 @@ +{ + "name": "paymentservice", + "version": "0.0.1", + "lockfileVersion": 1, + "requires": true, + "dependencies": { + "@grpc/proto-loader": { + "version": "0.1.0", + "resolved": "https://registry.npmjs.org/@grpc/proto-loader/-/proto-loader-0.1.0.tgz", + "integrity": "sha512-GHoZBR5N+65AWazsCiJDxeMSbUpp2qNYbjeD3mP27L2PT25+GvIupIIJiCgULH87NAiAd9SmWMRBVz+uSiHpgA==", + "requires": { + "@types/lodash": "4.14.110", + "@types/node": "9.6.22", + "lodash": "4.17.10", + "protobufjs": "6.8.6" + }, + "dependencies": { + "long": { + "version": "4.0.0", + 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b/src/paymentservice/package.json @@ -0,0 +1,15 @@ +{ + "name": "paymentservice", + "version": "0.0.1", + "description": "Payment Microservice demo", + "main": "index.js", + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1" + }, + "author": "Jonathan Lui", + "license": "ISC", + "dependencies": { + "@grpc/proto-loader": "^0.1.0", + "grpc": "^1.12.3" + } +} diff --git a/src/paymentservice/server.js b/src/paymentservice/server.js new file mode 100644 index 0000000..1ec579e --- /dev/null +++ b/src/paymentservice/server.js @@ -0,0 +1,69 @@ +const grpc = require('grpc'); +const protoLoader = require('@grpc/proto-loader'); + +class HipsterShopServer { + constructor(protoFile, port = HipsterShopServer.DEFAULT_PORT) { + this.port = port; + + this.server = new grpc.Server(); + this.loadProto(protoFile); + } + + /** + * Handler for PaymentService.Charge. + * @param {*} call { ChargeRequest } + * @param {*} callback fn(err, ChargeResponse) + */ + static ChargeServiceHandler(call, callback) { + try { + const response = this.charge(call.request) + callback(null, response); + } catch (err) { + callback(err); + } + } + + /** + * Charge function + * @param {*} request + * @return transaction_id + */ + static charge(request) { + return { transaction_id: -1 } + } + + listen() { + this.server.bind(`0.0.0.0:${this.port}`, grpc.ServerCredentials.createInsecure()); + this.server.start(); + } + + loadProto(path) { + const packageDefinition = protoLoader.loadSync( + path, + { + keepCase: true, + longs: String, + enums: String, + defaults: true, + oneofs: true, + }, + ); + const protoDescriptor = grpc.loadPackageDefinition(packageDefinition); + const hipsterShopPackage = protoDescriptor.hipstershop; + + this.addProtoService(hipsterShopPackage.PaymentService.service); + } + + addProtoService(service) { + this.server.addService( + service, + { + charge: HipsterShopServer.ChargeServiceHandler.bind(this), + }, + ); + } +} + +HipsterShopServer.DEFAULT_PORT = 50051; + +module.exports = HipsterShopServer;