The attribute 'close' is not present in the 'Application' data type

My approach to importing expressjs looks like this:

import { Request, Response, Application, Router } from 'express';
const app: Application = require('express')();

In my typings.json file:

 "express": "registry:npm/express#4.14.0+20160925001530",

When I use app.close(), I encounter the following error:

[ts] Property 'close' does not exist on type 'Application'.

  • How should I go about solving this issue?

  • Where should I report this potential bug (if it is indeed a bug)?

  • Am I the only one facing challenges with TypeScript typings?

expresstypescripttypescript-typings

Answer №1

The Application definition does not include the close method, unlike Server which does have it. When (app:Application).listen is called, it returns a Server.

start(){
    server = app.listen(options.port, function () {
        debug('Server listening on port ' + options.port)
    })
}
stop(){
    server.close();
}

If you encounter typings that are incorrect, you can report them to DefinitelyTyped here. This package is from npm at @types/express.

Working with Typescript can be challenging.

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