Set up oauth2generic to add custom parameters to authorizationUrl

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Posted on by PowerAutomate7

Hi,

Several certified connectors use oauth2generic, which allows users to pass additional parameters using

customParameters and

authorizationUrlQueryStringTemplate. A connector using this setup can be deployed using paconn and it works if following the examples.

.
Please see GitHub: https://github.com/microsoft/PowerPlatformConnectors/search?q=oauth2generic

However, I could not find any information on supported parameters, etc for this.

Does anybody have documentation on it? My concern is that if it's not documented properly, the support for this may be stopped or breaking changes introduced.

Using oauth2generic solves our issue (need to pass additional parameters in authorization URL). Other issues on this forum point that an authorization URL like:

https://www.test.com/something/oauth2/authorize?expiration=9999 breaks the connector as it will add a second ?
Ex. https://www.test.com/something/oauth2/authorize?expiration=9999?client_id=someid&

Using oauth2generic solves our need, but we are concerned about using this as a production implementation due to a lack of documentation.

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robmatesick 19 on at

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I also have a business case that requires using custom parameters to the API proxy's authorization server. It would be really great to know how well supported these are, and also if there is a schema definition for the apiProperties.json file.

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robmatesick 19 on at

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Note that I have discovered that even the official paconn CLI utility has code that has a schema to represent this oauth2generic identity provider. See PowerPlatformConnectors/paconn-apiProperties.schema.json at dev · microsoft/PowerPlatformConnectors (github.com)

It's still a shame that Microsoft hasn't publicly documented this.

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