Forum Discussion
Multi-Dimensional Json file to Table
Hi aurischa，
Please follow the following steps to import your JSON file to Power BI.
1. Right click your lists and choose "Add as new query".
2. Convert your columnNames list to table and transpose the table.
3.Convert your rows list to table and rename the column as follows
4.Add custom columns as follows, For more details, please review this similar blog.
5. Remove first column in rows table.
6. Append the two queries as shown in the following screenshots.
7. Select the first row in columnNames table and click the "Use first row as headers" button, then get expected result.
.
Thanks,
Lydia Zhang
Hi aurischa，
Please follow the following steps to import your JSON file to Power BI.
1. Right click your lists and choose "Add as new query".
2. Convert your columnNames list to table and transpose the table.
3.Convert your rows list to table and rename the column as follows
4.Add custom columns as follows, For more details, please review this similar blog.
5. Remove first column in rows table.
6. Append the two queries as shown in the following screenshots.
7. Select the first row in columnNames table and click the "Use first row as headers" button, then get expected result.
.
Thanks,
Lydia Zhang
Hi Lydia,
Excellent solution, and thank you for your help. My only small qualm is that it may not be scalable should the json data set contain say 20 or 100 colums. However, before reading this I did recently come up with another way to achieve this solution.
Fortunately I was able to use ROQL syntax in the REST API call meaning I was able to format the JSON file as such.
?query=SELECT%20ID,%27֍%27,subject,%27֍%27,category,%27֍%27%20from%20incidents
Where ֍ is the delimiter.
{
"items": [
{
"tableName": "Table0",
"count": 20000,
"columnNames": [
"id",
"'֍'",
"subject",
"'֍'",
"category",
"'֍'"
],
"rows": [
[
"61",
"֍",
"Test",
"֍",
null,
"֍"
],
[
"65",
"֍",
"TEST 2",
"֍",
null,
"֍"
],
Final step is to rename headings.
Now that I look at it there are a few redundant steps in there. But I achieved a similar result using delimiters programmaticly which someone might find useful.
It would be nice to be able to define the table structure of the json file for powerbi at the point of making the web calls instead of making the call importing the data and then trying to manipulate it. In PHP to achieve this I'd wrapping the data in an array of arrays and define the first element of all sub arrays as the ID field and wrtre out all the data in a for each loop. Having a UI to do this would be amazing. It just seems so many steps to convert what is already for the most part, structured data into a table.
Regards,
Adam