feat: add problem scores to progress tab api (AA-875)

lms/djangoapps/course_home_api/progress/v1/serializers.py

@@ -27,6 +27,7 @@ class SubsectionScoresSerializer(serializers.Serializer):
     num_points_earned = serializers.FloatField(source='graded_total.earned')
     num_points_possible = serializers.FloatField(source='graded_total.possible')
     percent_graded = serializers.FloatField()
+    problem_scores = serializers.SerializerMethodField()
     show_correctness = serializers.CharField()
     show_grades = serializers.SerializerMethodField()
     url = serializers.SerializerMethodField()
@@ -34,6 +35,16 @@ class SubsectionScoresSerializer(serializers.Serializer):
     def get_block_key(self, subsection):
         return str(subsection.location)
 
+    def get_problem_scores(self, subsection):
+        problem_scores = [
+            {
+                'earned': score.earned,
+                'possible': score.possible,
+            }
+            for score in subsection.problem_scores.values()
+        ]
+        return problem_scores
+
     def get_url(self, subsection):
         relative_path = reverse('jump_to', args=[self.context['course_key'], subsection.location])
         request = self.context['request']

lms/djangoapps/course_home_api/progress/v1/views.py

@@ -79,6 +79,9 @@ class ProgressTabView(RetrieveAPIView):
                 num_points_earned: (int) the amount of points the user has earned for the given subsection
                 num_points_possible: (int) the total amount of points possible for the given subsection
                 percent_graded: (float) the percentage of total points the user has received a grade for in a given subsection
+                problem_scores: List of objects that represent individual problem scores with the following fields:
+                    earned: (float) number of earned points
+                    possible: (float) number of possible points
                 show_correctness: (str) a str representing whether to show the problem/practice scores based on due date
                                   ('always', 'never', 'past_due', values defined in
                                    common/lib/xmodule/xmodule/modulestore/inheritance.py)