TypeError: post() missing 1 required positional argument: 'target_address'

[fredo]

Problem Definition

I tried a false API request making a payment. The command I did was:

curl -i -X POST http://localhost:5001/api/v1/payments/0xf1f41e5F35E3be655779a55d3544Df1Ad137b7C6 -H 'Content-Type: application/json' --data-raw '{"amount":"1", "identifier": 1337}'

Note: in the URL the token address was missing

The response on Raiden side was:

Traceback (most recent call last):
  File "src/gevent/greenlet.py", line 854, in gevent._greenlet.Greenlet.run
  File "raiden/api/rest.py", line 409, in _run
  File "gevent/baseserver.py", line 389, in serve_forever
  File "src/gevent/event.py", line 133, in gevent._event.Event.wait
  File "src/gevent/_abstract_linkable.py", line 208, in gevent.__abstract_linkable.AbstractLinkable._wait
  File "src/gevent/_abstract_linkable.py", line 178, in gevent.__abstract_linkable.AbstractLinkable._wait_core
  File "src/gevent/_abstract_linkable.py", line 196, in gevent.__abstract_linkable.AbstractLinkable._wait_core
  File "src/gevent/_abstract_linkable.py", line 182, in gevent.__abstract_linkable.AbstractLinkable._wait_core
  File "src/gevent/_greenlet_primitives.py", line 61, in gevent.__greenlet_primitives.SwitchOutGreenletWithLoop.switch
  File "src/gevent/_greenlet_primitives.py", line 61, in gevent.__greenlet_primitives.SwitchOutGreenletWithLoop.switch
  File "src/gevent/_greenlet_primitives.py", line 65, in gevent.__greenlet_primitives.SwitchOutGreenletWithLoop.switch
  File "src/gevent/__greenlet_primitives.pxd", line 35, in gevent.__greenlet_primitives._greenlet_switch
TypeError: post() missing 1 required positional argument: 'target_address'
2020-06-02T08:47:33Z <Greenlet "APIServer|Greenlet-0" at 0x7f885b0175f0: _run> failed with TypeError

My raiden node did not break but further API calls respond with

Failed to connect to localhost port 5001: Connection refused

I would expect that the raiden nodes continues to run after a wrong API call and continues to process new API Calls.

This was tried with version v1.0.0 and infura

[fredo]

It looks like that the API Server crashed but the raiden node itself did not

[palango]

Solving the underlying unhandled exception is left.

[Dominik1999]

see also if there is test case for all potentially missing arguments