PowerPlatformTip 138 – Graph API HTTP

💡 Challenge

Calling Graph APIs in Power Automate traditionally meant registering an Azure AD app, setting up client secrets or certificates, and configuring complicated OAuth flows – slows you down and breaks sometimes.

✅ Solution

Use the built-in “HTTP with Microsoft Entra ID (preauthorized)” action, sign in once, and point both the Base Resource URL and the Application ID URI to https://graph.microsoft.com.

🔧 How It’s Done

Here’s how to do it:

1. Add the “HTTP with Microsoft Entra ID (preauthorized)” action to your flow
   🔸 Authentication type is already set to “Log in with Microsoft Entra ID”.
2. Base Resource URL:
   🔸 https://graph.microsoft.com
3. Microsoft Entra ID Resource URI:
   🔸 https://graph.microsoft.com
4. Choose your HTTP method and endpoint (e.g. GET /v1.0/me)
5. Run the flow – the connector fetches and injects the token for you

🎉 Result

You get JSON responses from Graph in seconds, no app registration, secrets, or manual token handling needed.

🌟 Key Advantages

🔸 Zero custom app setup in Azure AD
🔸 Automatic token acquisition and renewal
🔸 Easily extend to any Graph endpoint

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🛠️ FAQ

1. What permissions does it use?
It leverages your own delegated permissions (e.g. User.Read).

2. Can I use POST or PATCH methods?
Yes – just pick the method and supply your body/headers as usual.

3. How do I fetch Teams data?
Change the endpoint to /v1.0/teams/{team-id}; the base URL stays the same.