cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Highlighted
New Member

JSON Data Objects in Objects in an Array

Hello,

 

Im struggling with a JSON data source in PowerBI Desktop. I've managed to get just the headings to output sucesfully using the following: (I've no idea how efficient this is)

 

let
Source = Json.Document(File.Contents("C:\Users\Chris.Kemp\Desktop\test.json")),
#"Converted to Table" = Table.FromList(Source, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
#"Expanded Column1" = Table.ExpandRecordColumn(#"Converted to Table", "Column1", {"id", "created_at", "updated_at", "created_by", "fields"}, {"Column1.id", "Column1.created_at", "Column1.updated_at", "Column1.created_by", "Column1.fields"}),
#"Column1 fields" = #"Expanded Column1"{0}[Column1.fields],
#"Converted to Table1" = Table.FromList(#"Column1 fields", Splitter.SplitByNothing(), null, null, ExtraValues.Error),
#"Expanded Column2" = Table.ExpandRecordColumn(#"Converted to Table1", "Column1", {"id"}, {"Column1.id"}),
#"Transposed Table" = Table.Transpose(#"Expanded Column2")
in
#"Transposed Table"

So I'm left with an empty table with headings:

 

f--description | f--due_date f--location_id

 

I cant get the headings of the first object or any data to populate the table.

 

I need to have the headings as:

 

id | created_at | created_by | f--description | f--due_date | f--location_id

 

And get the two records into the table after the headings. (This is just a data sample showing the structure im working with)

 

test.json

 

[{"id":"026f2908-5780-4061-9bbb-521ae81480c7","created_at":"2017-02-22 11:55:15 +0000","updated_at":"2017-02-22 12:09:56 +0000","created_by":"chris.k@b.com","fields":[{"id":"f--description","name":"Description","display_type":"textarea","value":"Paint"},{"id":"f--due_date","name":"Due date","display_type":"date","value":"2017-03-31"},{"id":"f--location_id","name":"Location","display_type":"location","value":"da206e01-91ba-4314-8d2b"}],"comments":[],"attachments":[]},{"id":"0475a275-f5d4-4b27-a47a-3d0caca9a2a7","created_at":"2017-02-22 11:55:55 +0000","updated_at":"2017-02-22 12:09:56 +0000","created_by":"chris.k@b.com","fields":[{"id":"f--description","name":"Description","display_type":"textarea","value":"Dogs"},{"id":"f--due_date","name":"Due date","display_type":"date","value":"2017-03-31"},{"id":"f--location_id","name":"Location","display_type":"location","value":"da206e01-91ba-8d2b-53659bf01891"}],"comments":[],"attachments":[]}]

 

Thanks in advance for any pointers on this,

 

Chris

1 REPLY 1
Highlighted
Community Support
Community Support

Re: JSON Data Objects in Objects in an Array

Hi @ck3mp,

 

Please modify the Power Query like below:

 

let
    Source = Json.Document(File.Contents("C:\Users\v-qiuyu\Desktop\test.json")),
    #"Converted to Table" = Table.FromList(Source, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
    #"Expanded Column1" = Table.ExpandRecordColumn(#"Converted to Table", "Column1", {"id", "created_at", "updated_at", "created_by", "fields", "comments", "attachments"}, {"Column1.id", "Column1.created_at", "Column1.updated_at", "Column1.created_by", "Column1.fields", "Column1.comments", "Column1.attachments"}),
    #"Removed Columns" = Table.RemoveColumns(#"Expanded Column1",{"Column1.updated_at"}),
    #"Expanded Column1.fields" = Table.ExpandListColumn(#"Removed Columns", "Column1.fields"),
    #"Removed Columns1" = Table.RemoveColumns(#"Expanded Column1.fields",{"Column1.comments", "Column1.attachments"}),
    #"Expanded Column1.fields1" = Table.ExpandRecordColumn(#"Removed Columns1", "Column1.fields", {"id", "name", "display_type", "value"}, {"Column1.fields.id", "Column1.fields.name", "Column1.fields.display_type", "Column1.fields.value"}),
    #"Renamed Columns" = Table.RenameColumns(#"Expanded Column1.fields1",{{"Column1.id", "fields.id"}, {"Column1.fields.name", "fields.name"}, {"Column1.fields.display_type", "fields.display_type"}, {"Column1.fields.value", "fields.value"}, {"Column1.created_at", "created_at"}, {"Column1.created_by", "created_by"}}),
    #"Pivoted Column" = Table.Pivot(#"Renamed Columns", List.Distinct(#"Renamed Columns"[Column1.fields.id]), "Column1.fields.id", "fields.name", List.Count)
in
    #"Pivoted Column"

 

 

Best Regards,
Qiuyun Yu

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

Helpful resources

Announcements
May 2020 Community Highlights

May 2020 Community Highlights

It’s time for another PBI Community recap!

Community Blog

Community Blog

Visit our Community Blog for articles, guides, and information created by fellow community members.

Using the Community

Using the Community

Need help with the Power BI Community? Our 'Using the Community' support articles are a great place to start.

Galleries

Galleries

Looking for inspiration on how to present your data? Need instructional videos? Check out our Galleries!

Top Solution Authors