I have 2 different users in force.com i.e user1 and user2. I have developed a rest resource in user1. IF user2 logs in by using a connected app after OAuth authentication, I want to access the rest resource developed in user1 by providing the username,password,clientID,client secret etc.
Is this scenario feasible if so what shud be the callback urL? Here is where I am stuck?
Thanks
krishna Casukhela
Are you setting the client_id and secret ?
Those are the parameters you should send:
client_id=XXXXXX
&client_secret=XXXX
&password=passTOKEN
&username=XXX
&grant_type=password
Ensure you are setting the header Content-Type: application/x-www-form-urlencoded.
BTW, user-password flow doesn't support refresh_token flow. More info see this reply
I got the same error and what fixed it was choosing "Send client credentials in body" in the "Client Authentication" dropdown.
Best Answer
What i have understood from your question is you are using Username and Password flow to get accesstoken aka SessionID. In this flow one does not need a callback URL. You can check it here https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/intro_understanding_username_password_oauth_flow.htm
But when you create a Connected app, it asks you provide callback URL(which is used by other 2 Flows of Oauth namely Webserver flow and UserAgent flow) which is not needed by you at the moment. So you can provide dummy value like "https://www.google.com" or any URL starting with HTTPs.