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nimdy
Frequent Visitor

Nested API Calls

I have been reading about nested API calls, but I can't apply it to my situation. I have two API URLs, one a parent record which gives me a list of all parent records when queried. The other is for the child records which has a mandatory parameter of ParentID. 

 

I want to be able to first call the parent URL to find a list of all parent IDs, then dynamically call the second URL to return the records for all the children. 

 

So 

 

http://example.com/api/parentrecords

 

Parent IDTitle
1Something
2Something Else
3Blah
4Blah Blah

 

Then from this list dynamicall call the child records URL based on the parent IDs

 

http://example.com/api/childrecords?ParentID=1

http://example.com/api/childrecords?ParentID=2

http://example.com/api/childrecords?ParentID=3

http://example.com/api/childrecords?ParentID=4

 

to retrieve all the child records for those parent records, which should give me something like 

 

IDParent IDDetails
104Blah
111

Something

122Another Blah
131Some Words Go Here
143Lorem Ipsum
153Mickey Mouse

 

Is this possible?

1 ACCEPTED SOLUTION
nimdy
Frequent Visitor

Perfect, thank you 😊

 

I wasn't understanding the workings behind function and parameters until I watched this video - https://www.thebiccountant.com/2018/03/22/web-scraping-2-scrape-multiple-pages-power-bi-power-query/ (if this helps anyone else out in the same situations. 

View solution in original post

2 REPLIES 2
parry2k
Super User
Super User

@nimdy you should write an M function and pass parent id as value to this function and construct API URL in this function from the parent id parameter and call the API.

 

In your parent table, create add a custom column and call the above function by passing parent id as parameter. That will do it.

 

Hope this post helps.

 

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nimdy
Frequent Visitor

Perfect, thank you 😊

 

I wasn't understanding the workings behind function and parameters until I watched this video - https://www.thebiccountant.com/2018/03/22/web-scraping-2-scrape-multiple-pages-power-bi-power-query/ (if this helps anyone else out in the same situations. 

View solution in original post

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