add endpoint average grade

Author: Noah

service/student_service.yaml

@@ -0,0 +1,48 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    io.kompose.service: service
+  name: service
+spec:
+  type: NodePort
+  ports:
+    - port: 8080
+      protocol: TCP
+      name: http
+  selector:
+    io.kompose.service: service
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations:
+    kompose.cmd: kompose convert
+    kompose.version: 1.16.0 (0c01309)
+  creationTimestamp: null
+  labels:
+    io.kompose.service: service
+  name: service
+spec:
+  selector:
+    matchLabels:
+      io.kompose.service: service
+  replicas: 1
+  template:
+    metadata:
+      creationTimestamp: null
+      labels:
+        io.kompose.service: service
+    spec:
+      containers:
+      - env:
+        - name: MONGO_URI
+          value: mongodb://mongo:27017
+        image: nginx
+        name: service
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 8080
+        resources: {}
+      restartPolicy: Always
+status: {}

swagger_server/controllers/default_controller.py

@@ -42,4 +42,21 @@ def get_student_by_id(student_id):  # noqa: E501
     """
     return get_by_id(student_id)
 
+def get_student_average_grade(student_id):
+    """gets student's average grade
+
+        Returns a single grade
+
+        :param student_id: the uid
+        :type student_id:
+
+        :rtype: Float
+        """
+    student = get_by_id(student_id)
+    grades = [grade_record.get("grade") for grade_record in student.get('grade_records')]
+    if not grades:
+        return 'no grades', 404
+    average_grade = sum(grades) / len(grades)
+    return average_grade
+
 

swagger_server/swagger/swagger.yaml

@@ -68,6 +68,35 @@ paths:
         "404":
           description: Student with specified student_id cannot be found
       x-openapi-router-controller: swagger_server.controllers.default_controller
+  /student/{student_id}/average_grade:
+    get:
+      summary: get average grade of the student
+      description: Returns the average grade for a specific student
+      operationId: get_student_average_grade
+      parameters:
+        - name: student_id
+          in: path
+          description: the uid
+          required: true
+          style: simple
+          explode: false
+          schema:
+            type: string
+            format: uuid
+      responses:
+        "200":
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                type: number
+                format: float
+                example: 8.5
+        "400":
+          description: Invalid ID
+        "404":
+          description: Not found
+      x-openapi-router-controller: swagger_server.controllers.default_controller
   /student:
     post:
       summary: Add a new student

swagger_server/test/test_default_controller.py

@@ -48,6 +48,17 @@ def test_get_student_by_id(self):
         self.assert200(response,
                        'Response body is : ' + response.data.decode('utf-8'))
 
+    def test_student_average_grade(self):
+        """Test case for get_student_by_id
+
+        gets student
+        """
+        response = self.client.open(
+            '/tutorial/1.0.0/student/{student_id}/average_grade'.format(student_id='38400000-8cf0-11bd-b23e-10b96e4ef00d'),
+            method='GET')
+        self.assert200(response,
+                       'Response body is : ' + response.data.decode('utf-8'))
+
 
 if __name__ == '__main__':
     import unittest