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Stand-alone and Express.js

This integration can both be used to run the tail.js server engine in a stand-alone server, or add it to an existing Express app.

Terminal window
# or npm or yarn
pnpm add @tailjs/express

Stand-alone tail.js server

If you want to run the server stand-alone, install the package in some directory, and create a file like below.

index.js
const tailjs = require("@tailjs/express");


// "null" can also be a number that specifies the port for the server. (the default is 7411)
tailjs(null /* configuration as per above. */);

Then you can start it with

Terminal window
node index.js

Adding as middleware to existing Express server.

index.ts
import { tailjs } from "@tailjs/express";


const app = express();
// Whatever your existing configuration...


tailjs(app, {
  client: {
    /* Tracker client configuration */
  },
  cookieKeys: [
    /* Keys used for encrypting cookies */
  ],
  extensions: [
    /* Extensions for writing to a database, client IP etc. */
  ],
});