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

Power BI is turning 10! Let’s celebrate together with dataviz contests, interactive sessions, and giveaways. Register now.

Reply
Rolo_NewBi
Frequent Visitor

Power Query API error

Hi. 

Im rather new to PowerBi and would appreciate some help with an error I've been getting. 

 

I am calling the web API to bring in Product info from Repsly and this is the code that I am using: 

 

let
Final = List.Generate
(
()=>
[
Result= Json.Document(Web.Contents("https://xxxxxxx@api.repsly.com/v3/export/products/0", [Headers=[Accept="application/json"]])),
TotalCount = 1

],
each [TotalCount]>0,
each
[

Result= Json.Document(Web.Contents("https://xxxxxxxxx@api.repsly.com/v3/export/products/" & Text.From([Result][MetaCollectionResult][LastID]), [Headers=[Accept="application/json"]])) ,
TotalCount = [Result][MetaCollectionResult][TotalCount]

],

each [Result][Products]
),
FinalTable = Table.FromRecords(List.Combine(Final))
in
FinalTable

 

The API is limited to 50 rows so this loops the API and brings in all the required information. I have investigated and the API has an issue that creates an additional blank row or a "null" value row at the end of the product list. 

This means that I am getting in all the product rows but it creates an error in the bottom row right below the final value. 

I have tried to remove the error by using standard options like "remove error/row etc" and replace values but it does not work. 

 

Screenshot of the Error below: 

 

Rolo_NewBi_1-1669380463249.png

 

 

I assume I have to eliminate the error in my call to the API. 

Can anyone assist with how I need to incorporate this into my code?  

 

2 REPLIES 2
lbendlin
Super User
Super User

lbendlin_0-1669503849900.png

change line 23 to filter out the null values. You may also want to review your code. Aren't you supposed to use NextID rather than LastID ?

Thanks, how would you add the filter? 

The API documentation confirms LastID and this code works perfectly for all the other endpoints. 

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.

Top Solution Authors