Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Join us for an expert-led overview of the tools and concepts you'll need to become a Certified Power BI Data Analyst and pass exam PL-300. Register now.

Reply
mvcsharepointde
Helper II
Helper II

Getting duplicate items from external API after i applied paging

I have this formula inside my Power BI desktop to get data from external API using Pagination:-

 

let
   
    PageSize = 10000, // The number of rows you want to retrieve per page
    GetData = (Offset as number) =>
        let
            body=Text.Combine({"sAPIKey=",ApiKey}),
            SourceAPILogin=Json.Document(
                Web.Contents(
                    SmartAPI, 
                    [
                        RelativePath="apilogin",
                        Headers=[Accept="application/json", #"Content-Type"="application/x-www-form-urlencoded",#"API-Key"=Token],
                        Content=Text.ToBinary(body)
                    ]
                )
            ),
            tblGetUID = Table.FromList(SourceAPILogin, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
            expGetUID = Table.ExpandRecordColumn(tblGetUID, "Column1", {"UID", "LanguageCode", "DatabaseVersion"}, {"Column1.UID", "Column1.LanguageCode", "Column1.DatabaseVersion"}),
            GetUID = expGetUID{0}[Column1.UID],
            Source=Json.Document(
                Web.Contents(
                    SmartAPI,
                    [
                        RelativePath = "jobs", // REST API endpoint
                        Query = [
                            Offset = Text.From(Offset),
                            Limit = Text.From(PageSize)
                        ], // Apply pagination
                        Headers = [Accept="application/json", #"Content-Type"="application/json",#"API-Key"=Token, UID=GetUID, DeviceID=ApiKey] // Headers
                    ]
                )
            ),
            // Convert the list to a table
            TableData = Table.FromList(Source, Splitter.SplitByNothing(), null, null, ExtraValues.Error),

            // Expand all records and lists in the table
            ExpandedData = if Table.HasColumns(TableData, {"Column1"}) then
                               Table.ExpandRecordColumn(TableData, "Column1", Record.FieldNames(TableData{0}[Column1]))
                           else
                               TableData // No need to expand if there is no "Column1"
        in
            ExpandedData,
    
    // Function to iterate over pages
    GetAllData = List.Generate(
        () => [Offset = 0, PageData = GetData(0)], 
        each Table.RowCount([PageData]) > 0, 
        each [Offset = [Offset] + PageSize, PageData = GetData([Offset])], 
        each [PageData]
    ),

    // Combine all the paged results into a single table
    CombinedData = Table.Combine(GetAllData),
    #"Sorted Rows" = Table.Sort(CombinedData,{{"JobCode", Order.Ascending}})
    
in
    #"Sorted Rows"

 

 but the problem i am facing is that i am getting the same item twice, as follow:-

 

mvcsharepointde_0-1728562489995.png

 

 

 

so what could be the reason?Thanks

 

1 REPLY 1
PhilipTreacy
Super User
Super User

@mvcsharepointde 

 

Can't see anything obviously wrong in the code.

 

If you make a single call to the API do you get the records returned twice?

 

Whilst you work on finding the cause of this, you can remove duplicates from the ID column to get a single row of data per ID.

 

Regards

 

Phil

 



Did I answer your question? Then please mark my post as the solution.
If I helped you, click on the Thumbs Up to give Kudos.


Blog :: YouTube Channel :: Connect on Linkedin


Proud to be a Super User!


Helpful resources

Announcements
Join our Fabric User Panel

Join our Fabric User Panel

This is your chance to engage directly with the engineering team behind Fabric and Power BI. Share your experiences and shape the future.

June 2025 Power BI Update Carousel

Power BI Monthly Update - June 2025

Check out the June 2025 Power BI update to learn about new features.

June 2025 community update carousel

Fabric Community Update - June 2025

Find out what's new and trending in the Fabric community.