Chartjs-How to display Json object in chart js consisting of lists created using Django rest framework in angular application

When assigning your data to Data and Labels, you should parse the string into an array using JSON.parse().

Instead of this…

result.forEach(x => {
  this.Data.push(x.data);
  this.Labels.push(x.labels);
});

do this:

result.forEach(x => {
  this.Data = JSON.parse(x.data);
  this.Labels = JSON.parse(x.labels);
});