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finish up PaymentService

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This commit is contained in:
Jonathan Lui 2018-06-21 10:52:11 -07:00
parent e5ea2154d2
commit 7a6edd751d
5 changed files with 896 additions and 0 deletions
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src/paymentservice/.gitignore vendored Normal file
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node_modules
.DS_Store

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src/paymentservice/index.js Normal file
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/*
* 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();

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15
src/paymentservice/package.json Normal file
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@ -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"
}
}

69
src/paymentservice/server.js Normal file
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@ -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;