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Power Platform Community / Forums / Power Automate / Custom connector: Quer...
Power Automate
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Custom connector: Query parameter collectionFormat Multi not supported

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Posted on by 29

Hello,

 

recently we have begun work on building a custom connector for our public API. We began by importing our existing API definition (OpenAPI 3.0 converted to OpenAPI 2.0) and have hit bit of a roadblock. We're polishing up our API definition, but there is something we cannot seem to get a clear view on: Does power automate support collectionFormat: multi for query parameters?

 

Our API requires that query parameters with multiple values use a repeating pattern in the query string like so ?idsIn=<value-1>&idsIn=<value-2>

This is defined in our swagger as follows:

 

 - name: idsIn
 in: query
 type: array
 required: false
 collectionFormat: multi
 items:
 type: string

 

During creation/update of the custom connector we face no swagger validation issues here. Power automate itself returns an error however, telling us the that:

 

Specified swagger has the following errors: 'Definition is not valid. Error: 'Error : paths/~1manufacturers~1{manufacturerId}~1projectSegmentItems/get/parameters/0/collectionFormat : The 'collectionFormat' keyword value 'Multi' is not supported. '

 

As far as we can tell this is adheres to the OpenAPI 2.0 specifications of this parameter: https://swagger.io/docs/specification/2-0/describing-parameters/

 

Is this something power automate does not support or are we overlooking something in order to enable it for our connector?

Thank you in advance!

 

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  • IndraDeMesmaeke Profile Picture
    29 on at

    For this to become supported or noticed it would also be best to support an idea thread I imagine.

     

    I have supported this existing one from two years ago and created my own as a bump of the issue

    This issue doesn't seem to have much traction sadly 🙁

  • ryanwillen Profile Picture
    13 on at

    Thanks I've up-voted your suggestion.

     

    I don't know why OpenAPI definitions aren't being supported in full. I came to Power Automate over the likes of Zapier and Make.com because we are already heavily reliant on Sharepoint as an organisation. Small but critical frustrations like this are already making me reconsider.

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