It's purpose to show how two services (written in 2 different languages) can communicate securely with Escher signing the requests. I wanted to show clearly and with the bare minimum how a signed request can be made and received.
Node (localhost:5001) <===> Python (localhost:5000)
Endpoints (on both sides):
/=> no authentication (not every route need authentication, eg.: checking service health)/start=> no authentication (send a singed request to the other service)/ping=> authenticated route, with proper singning responds with Pong
You can curl Node /start to make it send a signed request to Python:
$ curl http://localhost:5000/start -v
or fabricate your own signed request with httpie with escher plugin to send it (in the name of the Python service) to /ping:
$ http -v --verify=no --auth-type ems-auth -a eu/node/scope/python-node_v1:PythonNode GET http://localhost:5001/ping
You can do the same things with the Python service:
$ curl http://localhost:5001/start -v
$ http -v --verify=no --auth-type ems-auth -a eu/python/scope/node-python_v1:NodePython GET http://localhost:5000/ping