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ericonline
Community Champion
Community Champion

CUSTOM CONNECTOR: Research and findings

Entering my 3rd day straight on a complex GET/POST nested JSON schema problem. Thought I'd share some interesting findings I've found:

  1. A schema that returns "Success" in the Custom Connector "Test" area, does not directly transfer to a Custom Connector POST function ( myCustomConnector.POST({<things:andStuff>}) ) in PowerApps.
    1. This really sucks and its largely due, I believe, to 2.

  2. When dealing with POST schemas, " [ ] " 's <> work. The Custom Connector function needs "Table({<your schema here>}). It will not "see into" square brackets. 
    1. You can interrogate the needed schema by substituting [ for Table(, hover over the red squiggly intellisense, and build the correct schema from this. (handy but suuuuper-hacky).

Hope this helps!

1 ACCEPTED SOLUTION

Accepted Solutions
v-yuxima-msft
Community Support
Community Support

Hi @ericonline ,

 

Thanks for your information.

This is very helpful.

 

Best Regards.

Yumia

View solution in original post

3 REPLIES 3
v-yuxima-msft
Community Support
Community Support

Hi @ericonline ,

 

Thanks for your information.

This is very helpful.

 

Best Regards.

Yumia

View solution in original post

ericonline
Community Champion
Community Champion

Adding on to this... kind of related. 

  • For a ClearCollect statement that does NOT use a Custom Connector-defined JSON schema, I'm UNABLE to use Table()!
  • I MUST use "[ ]" 's instead of Table()!
  • Weird.

Example:

  • Does not work:
  • ClearCollect(colSample,
        Table(
            {parameter: "test", paramValue: 123},
            {parameter: "toast", paramValue: 345},
            {parameter: "toots", paramValue: 567}
        )
    )
  • Does work:
  • ClearCollect(colSample,
        [
            {parameter: "test", paramValue: 123},
            {parameter: "toast", paramValue: 345},
            {parameter: "toots", paramValue: 567}
        ]
    )
    Hope this helps someone else too!

@ericonline 

 

I think this may have something to do with the fact that ability to add so-called 'tabular-capabilities' is absent in custom connectors.

 

See: https://powerusers.microsoft.com/t5/PowerApps-Ideas/Custom-API-with-tabular-capabilities/idi-p/13394

 

HTH,

Josh

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