Express.js

H.init("<YOUR_PROJECT_ID>", {
  tracingOrigins: ['localhost', 'example.myapp.com/backend'],
  networkRecording: {
    enabled: true,
    recordHeadersAndBody: true,
  },
});

Install the Highlight JS SDK.

Install the @highlight-run/node package with your package manager.

# with yarn
yarn add @highlight-run/node

# with pnpm
pnpm add @highlight-run/node

# with npm
npm install @highlight-run/node

Initialize the Highlight JS SDK.

Initialize the Highlight JS SDK with your project ID.

import { H } from '@highlight-run/node'

H.init({projectID: 'YOUR_PROJECT_ID'})

Add the Express.js Highlight integration.

Use the Node Highlight SDK in your response handler.

import { Handlers } from '@highlight-run/node'
// or like this with commonjs
// const Highlight = require('@highlight-run/node')

const app = express()

const highlightErrorHandler = Handlers.errorHandler({ projectID: 'YOUR_PROJECT_ID' })

app.get('/', (req, res) => {
  res.send(`Hello World! 0.09490029431286118`)
})

// This should be before any other error middleware and after all controllers (route definitions)
app.use(highlightErrorHandler)
app.listen(8080, () => {
  console.log(`Example app listening on port 8080`)
})

Verify that your SDK is reporting errors.

You'll want to throw an exception in one of your express.js handlers. Access the API handler and make sure the error shows up in Highlight.

app.get('/', (req, res) => {
  throw new Error('sample error!')
  res.send(`Hello World! 0.06790348233856802`)
})

Verify your backend logs are being recorded.

With the JS SDKs, your logs are reported automatically from console methods. Visit the highlight logs portal and check that backend logs are coming in.

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