autorize page constantly shows 'invalid_request'

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Created Aug ’19

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Hi.

i'm out of ideas and need help. Already configured my test app and test site to work with sign in with Apple. Way through mobile app in conduction with my test portal works like a charm but now i stuck with integration of SIWA through webapp. When i redirect end user to follow page:

https://appleid.apple.com/auth/authorize?response_type=code&client_id=<id>&redirect_uri=<uri>&scope=name+email&state=<state>

Constantly see error:

invalid_request

Request missing required parameter or unsupported parameters or invalid redirect url

Already verified my domain, registered redirect URL which is using at redirect_uri parameter, went through a numerous of discussions with samples of this redirect but still no success. Please help.

Answered by sandro@parallels.com in 377767022

found root cause of problem: my return URL was too long - more than 54 symbols - seems the limit of parameter - but it isn't mentioned anywhere explicitly - neither at WWDR UI nor at API responses. Also no any docs for https://appleid.apple.com/auth/authorize and it's parameters. Apple please fix that.

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Answer 1

sandro@parallels.com OP

Aug ’19

Accepted Answer

found root cause of problem: my return URL was too long - more than 54 symbols - seems the limit of parameter - but it isn't mentioned anywhere explicitly - neither at WWDR UI nor at API responses. Also no any docs for https://appleid.apple.com/auth/authorize and it's parameters. Apple please fix that.

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Answer 2

sandro@parallels.com OP

Aug ’19

Found one more drawback: seems multiple redirect URIs also don't work - at least in my case until i had previously configured too long redirect URI the shorten one didn't work for me also.

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