Structuring GET request to REST Discovery Document using FieldMask as a query parameter

[Charles Kemp]

Trying to figure out how to properly structure an HTTP GET request to the Google Ads API REST discovery document, specifically so that the response only contains fields specified using the FieldMask query parameter.

When sending a request formatted like this: https://googleads.googleapis.com/$discovery/rest?version=v5?&fields=schemas it returns an error. 

Have tried with a variety of fields contained within the Discovery document with no success. 

Could use assistance in properly formatting the HTTP request such that I can control what data is returned.

Thanks for any help!

[mMuhammad mShahzad]

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[Google Ads API Forum Advisor Prod]

Hi Charles,

I think the issue is that the discovery endpoint may not be considered to be a core part of the API, and so those query parameters don't apply to it. The field mask filter would be used on a request for Ads data from the API, the discovery endpoint just contains metadata about the available fields. If you just want to isolate the "schemas" object, my recommendation would be to parse the JSON that's returned. If it's helpful, we have documentation on how to access the Google Ads API using REST here.

Hope that helps, let me know if you have any other questions.

Best,
Ben, Google Ads API Team

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