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Memorable Member
Memorable Member

Are there sample OpenAPI file for Azure Functions to creste Custom API ?

I want to create my Costom Connector from Azure Functions.

I have some simple Azure Functions.





Function Name: Trim

Input: sourceString

Output: outputString

Example Trim - sourceString = "  abc  ", trimedString= "abc"


Azure Functions "Trim" work well.

and I can call "Trim" by "HTTP - HTTP" action to Azure Function URL,

and I can get value by "Compose - Parse JSON" from "HTTP" action output.

 1.pngAt beginning, I want to start my Custom Connector from my Azure Function "Trim".

But, I stop how can I create swagger for "Trim".


I want to know sample OpenAPI file for Microsoft Flow Custom API.

and I hope to create OpenAPI file by Azure Functions, with input/output parameters definition for create Custom Connector.



Yoshihiro Kawabata



Community Support
Community Support

Hi @yoshihirok,


Please check and see if the following blog would help:

Announcing Azure Functions OpenAPI(Swagger) support preview


In addition, check the following blog and see if the example would help:

Using Azure functions in PowerApps




Community Support Team _ Michael Shao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi @v-micsh-msft


Thank you OpenAPI informations.

But, I want sample of OpenAPI files.


For refer how parameters need to write for Microsoft Flow Custom API.

and how outputs need to write from Microsoft Flow Custom API.


I cannot found how in your OpenAPI informations

I want to build my Custom APIs like existing Microsoft Flow Services.



Yoshihiro Kawabata


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