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Power Platform Community / Forums / Power Automate / Creating a custom conn...
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Creating a custom connector - returns function instead of json

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Posted on by 308

I'm in the process of creating a custom connector for the Australian ABN Lookup service. The issue I am running into is that the service returns the results wrapped in a callback function 

callback({"Abn":"","AbnStatus":"","Acn":"","AddressDate":null,"AddressPostcode":"","AddressState":"","BusinessName":[],"EntityName":"","EntityTypeCode":"","EntityTypeName":"","Gst":null,"Message":"Search text is not a valid ABN or ACN"})

I was wondering if anyone has come across a way to remove the callback section of the string in the connector so that valid JSON is returned to the flow

 

My other option with the lookup service is to return XML but I believe that this will cause other issues

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  • abm abm Profile Picture
    32,981 Most Valuable Professional on at

    Hi @Gareth1 

     

    You could do the replace function to remove the callback text. Please see below.

     

    image.png

     

    The replace expression I used above is

     

    replace(replace(variables('CallbackJSON'),'callback(',''),')','')
     
    Thanks
  • v-alzhan-msft Profile Picture
    Microsoft Employee on at

    Hi @Gareth1 ,

     

    I have made a test on my side and @abm 's solution is work, you could also take a try with substring() function, the screenshot of the flow as below:

    1.png

    The expression in the Compose 3 as below:

    substring(outputs('Compose'),9,sub(length(outputs('Compose')),10))

     

    Flow would run successfully as below:

    2.png

    Best regards,

    Alice       

     

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

     
  • Gareth1 Profile Picture
    308 on at

    Hi @v-alzhan-msft 

    I ended up using your suggestion in case there are any brackets in the response that should be in there (such as company names)

     

    I was hoping to handle this in a custom connector so that it could easily be shared by end users, however I could not find anything for this. The closest I could find was the policies however this seems a bit limited at the moment and doesn't have anything that I think might work here

  • Verified answer
    v-alzhan-msft Profile Picture
    Microsoft Employee on at

    Hi @Gareth1 ,

     

    I'm afraid that it is not easy to handle it in the custom connector.

     

    Best regards,

    Alice       

     

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

  • Gareth1 Profile Picture
    308 on at

    Hi @v-alzhan-msft 

    I thought that might have been the case

    Thanks for your help

  • Community Power Platform Member Profile Picture
    Microsoft Employee on at

    Hi @Gareth1 did you ever find a solution to this? I need my flow to look up ABNs to verify they are valid.

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