This simple server will echo back whatever message it receives. It is a pure JSON API server.

Start echo-api server by running the following in terminal:

npx echo-api

This will start the echo-api server on port 3007.

Open a browser and go to http://localhost:3007/echo/ThisIsTestMessage. You should get this back:

{"echo":"ThisIsTestMessage"}

Send this POST request http://localhost:3007/echo, with this BODY { "message": "ThisIsAnotherMessage" }, and you will get back:

{
    "echo": "ThisIsAnotherMessage"
}

The following command will run echo-api-server on port 3007:

docker run -d --name echo-api-server highmountaintea/echo-api-server:latest

If you want to run it on port 8080 and expose it, here is the command: (* don't expose a port to public unless you know what you are doing)

docker run -d --name echo-api-server -e "PORT=8080" -p 8080:8080 highmountaintea/echo-api-server:latest