storage-service/storage_service/views/object_view.py

#!/usr/bin/env python3
from flask import jsonify, request, abort, current_app
from flask_classful import FlaskView
from minio.error import BucketAlreadyExists, BucketAlreadyOwnedByYou, ResponseError
from marshmallow import ValidationError
from utils import storage
from schemas import DescriptionSchema


class ObjectView(FlaskView):
    description_schema = DescriptionSchema(many=False)

    def post(self):
        # get important data from the request
        try:
            description = self.description_schema.loads(request.form.get('description'))
        except ValidationError as e:
            abort(400, str(e))

        file = request.files['soundFile']

        if file.content_type != 'audio/wave':
            abort(400, f"{file.content_type} is not audio/wave")

        if file.content_length <= 0:
            abort(411, f"Content length for soundFile is not a positive integer or missing.")

        # create bucket if necessary
        try:
            storage.connection.make_bucket(current_app.config['MINIO_BUCKET_NAME'])

        except BucketAlreadyOwnedByYou as err:
            pass
        except BucketAlreadyExists as err:
            pass
            # Everything else should be raised

        # 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)
        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