How to use the aws-xray-sdk-express.openSegment function in aws-xray-sdk-express
To help you get started, we’ve selected a few aws-xray-sdk-express examples, based on popular ways it is used in public projects.
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aws-samples / voteapp / src / reports / app.js View on Github 
const captureAxios = require('./xray-axios');
let ax = axios.create({
baseURL: process.env.DATABASE_PROXY_URI || 'http://database-proxy:3000/'
});
captureAxios(ax);
// install route logging middleware
app.use(morgan('dev'));
// install json body parsing middleware
app.use(express.json());
// install x-ray tracing
app.use(xrayExpress.openSegment('reports.app'));
// root route handler
app.get('/', (_, res) => {
return res.send({ success: true, result: 'hello'});
});
// results route handler
app.get('/results', async (_, res) => {
try {
console.log('GET /results');
let result = await ax.get('/results');
let data = result.data;
// ex: { success: true, result: { a: X, b: X } }
console.log('data: ', data);
// append version 2 extra fieldconst port = process.env.PORT || 3000;
const app = express();
const server = http.createServer(app);
let databaseConfig = Database.createStdConfig();
let db;
// install route logging middleware
app.use(morgan('dev'));
// install json body parsing middleware
app.use(express.json());
// install x-ray tracing
app.use(xrayExpress.openSegment('database-proxy.app'));
// root route handler
app.get('/', (_, res) => {
return res.send({ success: true, result: 'hello'});
});
// vote route handler
app.post('/vote', async (req, res) => {
try {
console.log('POST /vote: %j', req.body);
let v = req.body;
let result = await db.updateVote(v);
console.log('stored :', result);
res.send({ success: true, result: {
voter_id: result.voter_id,
vote: result.votelet reportsURI = process.env.REPORTS_URI || 'http://reports:3000/';
let reportsAPI = axios.create({
baseURL: reportsURI
});
captureAxios(votesAPI);
captureAxios(reportsAPI);
// install route logging middleware
app.use(morgan('dev'));
// install json body parsing middleware
app.use(express.json());
// install x-ray tracing
app.use(xrayExpress.openSegment('web.app'));
// root route handler
app.get('/', (req, res) => {
return res.send({ success: true, result: 'hello'});
});
// vote route handler
app.post('/vote', async (req, res) => {
try {
console.log('POST /vote: %j', req.body);
let v = { vote: req.body.vote };
let result = await votesAPI.post('/vote', v);
// result.data contains an object
// { success: , result: { voter_id: , vote: } }
let data = result.data;
console.log('posted vote: %j', data);const captureAxios = require('./xray-axios');
let ax = axios.create({
baseURL: process.env.DATABASE_PROXY_URI || 'http://database-proxy:3000/'
});
captureAxios(ax);
// route logging middleware
app.use(morgan('dev'));
// json body parsing middleware
app.use(express.json());
// install x-ray tracing
app.use(xrayExpress.openSegment('votes.app'));
// root route handler
app.get('/', (req, res) => {
return res.send({ success: true, result: 'hello'});
});
// vote route handler
app.post('/vote', async (req, res) => {
try {
console.log('POST /vote: %j', req.body);
let v = req.body;
let result = await ax.post('/vote', v);
let data = result.data;
// result.data contains an object
// { success: , result: { voter_id: , vote: } }
console.log('data: ', data);aws-xray-sdk-express
AWS X-Ray Middleware for Express (Javascript)
