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HTTP GET call against an endpoint which requires query parameters in the body

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Posted on by Lee12345

I'm trying to pull information out of our service desk plus cloud system (zoho manageengine) API using powerautomate http calls. When I try to pass JSON information into a GET to control how much info, the sort etc, Power Automate tells me I'm not allowed to do that. It works from Powershell or curl or whatever. "The provided 'Http' action inputs are not valid. A request body must not be included for 'GET' requests." is the error given.

I understand that you're not really supposed to pass information into GET requests, but I didn't write the API. Is there any way around this restriction in Power Automate? There isn't a post endpoint available for this.

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SudeepGhatakNZ 14,394 Most Valuable Professional on at

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Is the API publicly accessible, or does it necessitate an authentication mechanism?

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Lee12345 17 on at

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It's Oauth, but that part of my flow works fine, as does the GET without the control parameters. Which unfortunately is a bit useless....

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SudeepGhatakNZ 14,394 Most Valuable Professional on at

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If you're supplying a request body, consider altering it to use the POST method instead.

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Lee12345 17 on at

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I can't alter the API itself, how would I go about altering the call to use a post method?

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SudeepGhatakNZ 14,394 Most Valuable Professional on at

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Lee12345 17 on at

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So for future visitors to this thread, the answer was actually to keep using GET, but stuff the input_data JSON parameters into the Queries field in power automate. Not to use a POST against a GET endpoint.

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Msn124 3 on at

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Hi Lee12345, I really appreciateyour Efforts to solve Your Problem....But I am facing same Same problem...will you please elaborate a little more in this solution....Because it's Throwing the same error

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