API Newbie - OAuth 2.0 "Internal Server Error" StatusCode 500

Question

Hi everyone,&nbsp;First - I am a&nbsp;brand new API user and doing my best to learn as much as possible, but am getting stuck.&nbsp; I've been trying to follow the great suggestions made on this thread&nbsp;but seem to keep hitting errors.&nbsp; I think I am running into the issue during the OAuth2.0 process, but have provided all my steps just in case I am doing something wrong before this step.&nbsp; Any help/advice you can give a non-programmer data analyst like me would be SO appreciated!!&nbsp;Thank you in advance!Kate---&nbsp;End Goal: To perform a regular XML or JSON export of our forums data from the messages, user, and several associated tables to be incorporated into an on-premise business intelligence solution to allow by topic focused reporting.&nbsp;Steps Taken so Far:1) Determined fields needed and data type availability etc. via APIv2 documentation&nbsp;2) Gained access to our site's stage environment to test LiQL queries via the Studio&gt;API Browser tab.&nbsp; Created a successful test query (example -&nbsp;SELECT * FROM messages WHERE id = "17478")3) Gained access to stage environment Admin to navigate to API Apps and create a new web app where display name= Test, Authorization Redirect URL = forums.stage.[ourcommunity].com4) Via new Web API App, noted Tenant ID, Client ID and Client Secret5) Try an unauthenticated test call via Postman using&nbsp;https://api.stage.lithium.com/community/2.0/[tennantID]/search?q=SELECT+*+FROM+messages+WHERE+id%3D"17478"&amp;api.pretty_print=true&nbsp;6) Received error message 401 "Invalid Access Token. Please refresh the token"&nbsp;5) Try to complete OAuth2.0 to get a valid access Token:&nbsp;a) Submit URL https://forums.stage.[ourcommunity].com/auth/oauth2/authorize?/clientid=[exact_client_id_shown_in_Web_API_App]&amp;response_type&amp;redirect_uri=forums.stage.[ourcommunity].comb) Receive a "The page you are trying to access was not found.&nbsp; Please check your URL for typos and try again" in browser with following URL&nbsp;https://forums.stage.[mycommunity].com/t5/oauth/forums.stage.[mycommunity].com?code=[encoded_string]&amp;user-id=125&amp;tenant-id=[my_tenant_id]&amp;proxy-host=api.stage.lithium.comc) Using HTTPRequester in my Firefox browser (couldn't get the flow this far w/ Postman) pass a POST request for&nbsp;https://api.stage.lithium.com/auth/v1/accessToken with the following in header:client_id: [exactly as found on my API Web Apps]content-type: "application/json"client_secret: [exactly as found on my API Web Apps]code: [exactly as found in URL in step b]Redirect_uri: "forums.stage.[mycommunity].comgrant_type: authorization_code&nbsp;And here is where I keep getting stuck....Result:{"status":"Internal Server Error","message":"Internal Server Error","statusCode":500}&nbsp;Any ideas?&nbsp;&nbsp;

tariqhussain · Answer

khill-&nbsp;khill wrote:a) Submit URL https://forums.stage.[ourcommunity].com/auth/oauth2/authorize?/clientid=[exact_client_id_shown_in_Web_API_App]&amp;response_type&amp;redirect_uri=forums.stage.[ourcommunity].com&nbsp;b) Receive a "The page you are trying to access was not found.&nbsp; Please check your URL for typos and try again" in browser with following URL&nbsp;https://forums.stage.[mycommunity].com/t5/oauth/forums.stage.[mycommunity].com?code=[encoded_string]...Can you include http:// or https:// (whichever your stage has) in front redirect_uri. It should be like this https://forums.stage.[ourcommunity].com/auth/oauth2/authorize?/clientid=[exact_client_id_shown_in_Web_API_App]&amp;response_type&amp;redirect_uri=http://forums.stage.[ourcommunity].com&nbsp;The error you are getting on step b) is because, you didn't include the http or https.&nbsp;&nbsp;

tariqhussain · Answer

khill- You are passing all the parameters as header. However, as mentioned in a doc here, You should pass the client id in header, and all other parameters along with client-id as request body.&nbsp;Example Code belowLJdishd:~ joan.doe$ curl -X POST -H "Content-Type: application/json" -H 
"client-id: Fblkh30GinF48502kEsk4FmGslkjdfjasdj=" -d '{"client_id" :"Fblkh30GinF48502kEsk4FmGslkjdfjasdj=",
"client_secret" :"FKDDASDK309slkdfaDkdlkjie92=","grant_type" : "authorization_code",
"redirect_uri" :"http://redirect.example_community.com/getaccessToken",
"code":"i7liaoFaOjG6yDKN4tQYXrhewKog3k4ryYGWLS6hbrI="}' "https://api.lithium.com/auth/v1/accessToken"&nbsp;

khill · Answer

As some more information - this is the slightly different error I get when going through the Get New Token OAuth2.0 process in Postman. Slightly different error, but stuck at the same point more or less. I think? :S.

khill · Answer

Hi TariqHussain,&nbsp;Thanks again for your help!&nbsp;:)&nbsp;I've tried adding the https:// to the redirect URI as you&nbsp;noted above.&nbsp; Now I am no longer receiving an error after passing the initial GET request which returns with code in my URL, however, I am still receiving a 500 error (via HttpRequester on Firefox) or "Unexpected Error" (via Chrome using Postman after prompting my login credentials) after the POST request.&nbsp; Any ideas?&nbsp; Here are my new steps to recreate:&nbsp;1) Sign in with credentials&nbsp;to https://forums.stage.[mycommunity].com&nbsp;1) Pass GET request via URL https://forums.stage.[mycommunity].com/auth/oauth2/authorize?client_id=[exactly_as_shown_in_Apps_API]&amp;response_type=code&amp;redirect_uri=https://forums.stage.[mycommunity].com&nbsp;2) No longer see an error page and am&nbsp;returned to the base stage page with the URL https://forums.stage.[mycommunity].com/?code=[encoded_code]&amp;user-id=125&amp;tenant-id=[mytenantid]&amp;proxy-host=api.stage.lithium.com&nbsp;3) Pass a POST request via HttpRequester using:URL: https://api.stage.lithium.com/auth/v1/accessTokenHeader:client_secret: [exactly_as_shown_in_API_Web_Apps]client_id: [exactly_as_shown_in_API_Web_Apps]code: [encoded_code_from_URL_in_step_2]&nbsp; &lt;- also tried decoded but didn't seem to make a differencecontent-type: "application/json"grant_type: "authorization_code"&nbsp;Results:&nbsp;{"status":"Internal Server Error","message":"Internal Server Error","statusCode":500}&nbsp;Any ideas?&nbsp; I am sure I am just doing something simple wrong, but can't seem to figure it out.&nbsp;Thanks again!Kate&nbsp;

khill · Answer

Thanks Tariq so much for your help! I was definitely not passing those parameters in the right place.&nbsp;Unfortunately, after that adjustment I am still receiving the 505 server error so I must be doing something else wrong.&nbsp; Sent in a service request to Lithium in hopes they can help me troubleshoot with my actual community keys and URLs.&nbsp; Unless, of course, you have any other ideas :)&nbsp;Thank you again for your help!!

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API Newbie - OAuth 2.0 "Internal Server Error" StatusCode 500

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