Calling API with oAuth2 | OutSystems

Omar AbdElhadi

Rank: #2494

Calling API with oAuth2

Solved

Question

i am trying to consume API thats needs to tokens !

https://learn.microsoft.com/en-us/entra/identity-platform/v2-oauth2-client-creds-grant-flow#first-case-access-token-request-with-a-shared-secret

but i beleive if i used this interface it will generate the token and send it to reset API , but it dose not work !!!

{

"error": "invalid_request",

"error_description": "AADSTS900144: The request body must contain the following parameter: 'grant_type'. Trace ID: 4f5c1498-e144-4de3-bb1b-675cfcfc6a00 Correlation ID: b7180acc-798d-42ac-b1f6-248d36e1cdcc Timestamp: 2024-02-12 10:30:52Z",

"error_codes": [

900144

12 Feb

Stefan Weber

MVP

Rank: #84

Solution

Hi for obtaining an Entra token using client credentials flow you can review the recording of my webinar on Application Permission with Graph API here https://youtu.be/yVK8WQz5qnU

The slides are available here https://spatium.outsystemscloud.com/slider

Stefan

12 Feb

Kshitij Raheja

Rank: #1514

Hey @Omar AbdElhadi

You can use auth in the way i have done below
I have implemented Microsoft Graph auth in the OML you can check it out

1) Create site properties to save auth tokens

2) Create a get token rest API to get the auth token using the client ID and secret or your preferred auth method

3) to generate a new auth token add "OnBeforeRequest" and in headers append "authorization"

please make sure to use it safely and use proper authentication for the API

Let me know if that solves the issue for you

Regards,
Kshitij

APIDynamicAuth.oml

12 Feb

2 replies

Last reply 12 Feb

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Omar AbdElhadi

Rank: #2494

dose it work with this !

https://learn.microsoft.com/en-us/entra/identity-platform/v2-oauth2-client-creds-grant-flow#first-case-access-token-request-with-a-shared-secret

12 Feb

Kshitij Raheja

Rank: #1514

Replying to Omar AbdElhadi's comment on 12 Feb 2024 11:36:00

yes this is a method works will most of not all apis

12 Feb

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