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BBConsultancy
Helper I
Helper I

Infinite loop with paginated API

I try to retrieve data from a paginated API. The API handles 100 records per request at max.

 

1. I made a function (OrdersFunction) to call the API with and enter a number for 'Skip' which is the attribute to navigate through the records.

 

(Skip as number)=>
let 
getJson = Json.Document(
        Web.Contents(
            "https://api.formitable.com/api/v1.2/{UID}/order/1900-01-01/2024-12-31/"& Number.ToText(Skip) &"/100",
            [
                Headers = [#"ApiKey"="????????????????",#"Accept"="application/json"]
            ]
        )
)

in
    getJson

 

 

2. I made this code in the advanced editor of an empty query to loop through all the API calls, retrieving 100 records at a time.

 

let
Source = List.Generate(()=>
[Result = try OrdersFunction(0) otherwise null, skip=0],
each [Result]<>null,
each [Result= try OrdersFunction([skip]+100) otherwise null, skip=[skip]+100],
each [Result])

in
Source

 

 

My issue is that when I load the data, it looks like it's stuck into an infinite loop. How can I modify the code to prevent the infinite loop?

2 REPLIES 2
Anonymous
Not applicable

Hi @BBConsultancy ,

What results are returned when looping? 
If there is a specific value you can refer to the solution below:
Solved: Infinite loop in pagination (API) - Microsoft Fabric Community

 

Best Regards,
Gao

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 -- China Power BI User Group

AlienSx
Super User
Super User

each [Result]<>null and [skip] < some_number

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