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I am trying to connect to ProcessMaker using REST API calls via Ruby. I can generate the appropriate requests and test those requests via the Advanced Rest Client. I am using a call to OAuth to get a token that will be used to access data in the database. Whenever I post it get :

"error":"invalid_request","error_description":"The grant type was not specified in the request"
You are not setting your grant_type or scope correctly when obtaining your access token. You need to send this information to obtain the token:
Code: Select all
    "grant_type": "password",
    "scope": "*",      
    "client_secret": "XXXXXXXXXXXXXXXXXXXXXX",
    "username": "jdoe",
    "password": "p4sSw0rd"
This is the body of the post:


Using this same data in the Advanced REST Client is successful. Perhaps it is an issue with how Ruby is formating the post data.
Here is the information from debugging my calls to the OAuth page:

[2017-05-10 21:22:42.165] DEBUG Sending post request to http://XX.XX.XXX.XXX:8080/workflow/oauth2/token with body: {"grant_type":"password","scope":"*","client_id":"ORFAVREOUWRAUGGRQJGTNKDRHKBSETWT","client_secret":"434157704590a695188bf57026369405","username":"pwaller","password":"welcome"} and headers:

[2017-05-10 21:22:42.303] INFO POST -- (0.13s) 400 {"error":"invalid_client","error_description":"The client credentials are invalid"} {"date"=>"Wed, 10 May 2017 21:22:42 GMT", "server"=>"Apache/2.4.6 (CentOS) PHP/5.4.16", "x-powered-by"=>"PHP/5.4.16", "access-control-allow-origin"=>"*", "vary"=>"Accept", "cache-control"=>"no-store", "content-length"=>"83", "connection"=>"close", "content-type"=>"application/json"}

It appears to me that the content-type is set to application/json and the body is valid json, includes the grant_type. The user id and password are valid and can log into ProcessMaker. The user is an Administrator.

Any ideas would be appreciated.

As of now I'm still having this problem.

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