'Flutter: Group by Array List of Json String by Id
String jsonString = [{"color":"#000000","quantity":"100","price":"999","attribute":{"id":1,"name":"SIZE"}},{"color":"#cd7d96","quantity":"40","price":"555","attribute":{"id":2,"name":"FABRIC"}},{"color":"#66cccc","quantity":"500","price":"1000","attribute":{"id":1,"name":"SIZE"}}]
How can I group by and archive results as below
[{"attribute_id":1, "values":["#000000","#66cccc"]},{"attribute_id":2, "values":["#cd7d96"]}]
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