This package provides an Express compatible middleware which appends an instance of app context to each request and configures it with details automatically inferred from the running application.
This package is compatible with Node 12+ and is distributed on npm.
npm install --save @financial-times/dotcom-middleware-app-contextAfter installing the package create a new instance of the middleware and register it with your application. The middleware can be configured with several options:
const express = require('express')
const app = express()
+const appContext = require('@financial-times/dotcom-middleware-app-context')
+app.use(appContext.init())Once registered an appContext property will be added to the response locals:
app.get('/', (request, response) => {
const appContextData = response.locals.appContext.getAll()
})See the app context package documentation for more information.
The middleware accepts the following parameters:
An app context data object, see the app context schema for more information. This can be used to append extra properties or override any of the properties automatically inferred from the running application.