Not able to update certificate in existing service principle through logic app or graph API

Question

I am trying to take certificate from azure key Vault & want to upload it against service principle but I am getting method not allowed error.

Graph API call- PATCH

https://graph.microsoft.com/v1.0/applications?$filter=appId eq 'XXXXXXXXX'

Steps Followed from below article for request body

https://learn.microsoft.com/en-us/graph/api/resources/keycredential?view=graph-rest-1.0

I converted Certificate into Json (property name given in bracket below)
{
"@odata.type": //Given error so removed ,
"customKeyIdentifier": //Key vault's Certificate Identifier (kid),
"displayName": //Removed,
"endDateTime": //Key Vault's Certificate Expiration date (exp),
"key": "Binary" ://Key Vault's Certificate certicate (Cer) ,
"keyId": //New GUID,
"startDateTime": //Certificate Created date (Created ),
"type": "AsymmetricX509Cert",
"usage": "Verify"
}

Answer 1

@Pallavi Chede
Thank you for the quick follow up!

Based off your error message - 405 Method Not Allowed, it looks like you're using a PATCH request when you should be using a POST per the application: addKey documentation. I also found that Key management operations use HTTP DELETE, GET, PATCH, PUT and HTTP POST and cryptographic operations against existing key objects use HTTP POST. For more info.

Additional Links:
Request Body
Using HTTP POST
405 Method Not Allowed: What It Is and How to Fix It

If you're still having problems:

• Was your Logic App working previously? Or did this issue just start?
• If this is a new issue, do you know what could've changed to have caused this error?

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Thank you for your time and patience throughout this issue.

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