Implemented the REST of the endpoints

storage_service/views/object_view.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
-from flask import jsonify, request, abort, current_app
+from flask import jsonify, request, abort, current_app, Response
 from flask_classful import FlaskView
-from minio.error import BucketAlreadyExists, BucketAlreadyOwnedByYou, ResponseError
+from minio.error import BucketAlreadyExists, BucketAlreadyOwnedByYou, ResponseError, NoSuchKey
 from marshmallow import ValidationError
 from utils import storage
 from schemas import DescriptionSchema
@@ -10,6 +10,15 @@ from schemas import DescriptionSchema
 class ObjectView(FlaskView):
     description_schema = DescriptionSchema(many=False)
 
+    @staticmethod
+    def _check_existance(tag: str) -> bool:  # ez aztán igen
+        try:
+            storage.connection.stat_object(current_app.config['MINIO_BUCKET_NAME'], tag)
+        except NoSuchKey:
+            return False
+
+        return True
+
     def post(self):
         # get important data from the request
         try:
@@ -17,6 +26,11 @@ class ObjectView(FlaskView):
         except ValidationError as e:
             abort(400, str(e))
 
+        # check for conflict
+        if self._check_existance(description['tag']):
+            abort(409)
+
+        # get and validate file
         file = request.files['soundFile']
 
         if file.content_type != 'audio/wave':
@@ -37,8 +51,31 @@ class ObjectView(FlaskView):
 
         # poot file into bucket
         try:
-            storage.connection.put_object(current_app.config['MINIO_BUCKET_NAME'], description['tag'], file, file.content_length, content_type=file.content_type)
+            storage.connection.put_object(current_app.config['MINIO_BUCKET_NAME'], description['tag'], file,
+                                          file.content_length, content_type=file.content_type)
         except ResponseError:  # TODO: Check if object already exists... somehow
             raise
 
         return jsonify({"status": "200"}), 200  # TODO: 200 should be OK but that would be inconsistent with the errors
+
+    def get(self, tag: str):
+
+        # TODO: Validate tag
+
+        try:
+            data = storage.connection.get_object(current_app.config['MINIO_BUCKET_NAME'], tag)
+        except NoSuchKey:
+            abort(404)
+
+        return Response(data.stream(), mimetype=data.headers['Content-type'])
+
+    def delete(self, tag: str):
+
+        # TODO: Validate tag
+
+        if not self._check_existance(tag):
+            abort(404)
+
+        storage.connection.remove_object(current_app.config['MINIO_BUCKET_NAME'], tag)
+
+        return jsonify({"status": "200"}), 200