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Helper III
Helper III

Web.Contents failed to get data through Azure Function http call!

Hello Power BI Pros,

We call an azure function url via Web.Contents() method as following:

    Source = (CustomerGuid as text) => let
       Source = Json.Document(
               [RelativePath = CustomerGuid] 
        ) in Source

It works fine, but with some certain datasets (usually larger ones), I could refresh and get all the data in the Power Query Editor (Transform data) but in the power bi desktop itself I get this error:



The reason is not obvious specially that when we call the azure function with the same customer guid it works and returns the data correctly!

Thank you in advance for your help ❤️

Community Support
Community Support

Hi @walid140891 ,

Please refer to past solutions.


(502): Bad Gateway:

Solved: Connecting to Application Insights: Bad Gateway Er...

(500): Internal Server Error:

Solved: File too big to import from online source- (500): ...


Best Regards,

Community Support Team


If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly --  How to provide sample data in the Power BI Forum

Hi @v-cgao-msft ,

Thank you for your response, it's mentioned that 502 bad gateway issue is related to the fact that the query returns too much data, however we use power bi for showing incretemntally saved data, that means we need all the historical data and we cannot limit the refresh time frame!

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