WSPR

WebSocket proxy for post http requests. Perfect for testing purposes/mocks 🚀

Installation

npm i -g wspr

Usage

Just run

wspr

after, you will see output with 2 urls:

WebSocket server started ws://localhost:3005
HTPP proxy server started http://localhost:3006

Broadcast message to clients:

To broadcast a message to clients, send a POST request with a string/JSON body (via Postman or cURL) to the HTTP endpoint provided in the previous step.

curl -d "{"hello": "world"}" -X POST http://localhost:3006

Websocket over secure connection

If you want to run the websocket server over a secure connection, follow these steps:

1. create self signed certificates: https://letsencrypt.org/docs/certificates-for-localhost/#making-and-trusting-your-own-certificates

2. trust the self signed certs, eg on mac: https://tosbourn.com/getting-os-x-to-trust-self-signed-ssl-certificates/

3. pass the paths to the certificate and key using the --cert and --key CLI args, eg:

wspr --cert=./localhost.crt --key=./localhost.key

4. you should see the websocket is now running over wss:

WebSocket server started wss://localhost:3005

Proxy and extend existing WebSocket

Just specify --proxyWsUrl='wss://your.url/andPath' and all the messages from your actual server will be proxied via WSPR with the ability for you to send any extra messages to your clients (useful during new feature implementation when the server has not implemented some messages yet).

Enjoy 🚀🥤