resp

raiden git:(master) ✗ curl -i -X PUT http://localhost:5002/api/1/connections/0x6f576941799EEF4c7714a5e383443285402E042f -H 'Content-Type: application/json' --data-raw '{"funds": 100, "joinable_funds_target": 0.6, "initial_channel_target": 0}'
HTTP/1.1 204 NO CONTENT
mimetype: application/json
Content-Type: application/json
Content-Length: 0
Date: Thu, 20 Sep 2018 11:06:51 GMT

 raiden git:(master) ✗ curl -i -X PUT http://localhost:5002/api/1/connections/0x6f576941799EEF4c7714a5e383443285402E042f -H 'Content-Type: application/json' --data-raw '{"funds": 100, "joinable_funds_target": 0, "initial_channel_target": 0.3}'
HTTP/1.1 204 NO CONTENT
mimetype: application/json
Content-Type: application/json
Content-Length: 0
Date: Thu, 20 Sep 2018 11:08:22 GMT

raiden git:(master) ✗ curl -i -X PUT http://localhost:5002/api/1/connections/0x6f576941799EEF4c7714a5e383443285402E042f -H 'Content-Type: application/json' --data-raw '{"funds": 0, "joinable_funds_target": 0, "initial_channel_target": 0}'
HTTP/1.1 409 CONFLICT
mimetype: application/json
Content-Type: application/json
Content-Length: 78
Date: Thu, 20 Sep 2018 11:11:16 GMT

{"errors": "The funds to use in the connection need to be a positive integer"}% 













curl -i -X PUT http://localhost:5002/api/1/connections/0x6f576941799EEF4c7714a5e383443285402E042f -H 'Content-Type: application/json' --data-raw '{"funds": 100, "joinable_funds_target": 0, "initial_channel_target": 5}' 
HTTP/1.1 204 NO CONTENT
mimetype: application/json
Content-Type: application/json
Content-Length: 0
Date: Thu, 20 Sep 2018 11:16:38 GMT


In this case it opened 5 channels each one with a balance of 20.