Flask-RESTful - Upload image

Question

I was wondering on how do you upload files by creating an API service?

class UploadImage(Resource):     def post(self, fname):         file = request.files['file']         if file:             # save image         else:             # return error             return {'False'} 

Route

api.add_resource(UploadImage, '/api/uploadimage/<string:fname>') 

And then the HTML

   <input type="file" name="file"> 

I have enabled CORS on the server side

I am using angular.js as front-end and ng-upload if that matters, but can use CURL statements too!

Answer 1

The following is enough to save the uploaded file:

from flask import Flask from flask_restful import Resource, Api, reqparse import werkzeug  class UploadImage(Resource):    def post(self):      parse = reqparse.RequestParser()      parse.add_argument('file', type=werkzeug.datastructures.FileStorage, location='files')      args = parse.parse_args()      image_file = args['file']      image_file.save("your_file_name.jpg") 

Answer 2

class UploadWavAPI(Resource):     def post(self):         parse = reqparse.RequestParser()         parse.add_argument('audio', type=werkzeug.FileStorage, location='files')          args = parse.parse_args()          stream = args['audio'].stream         wav_file = wave.open(stream, 'rb')         signal = wav_file.readframes(-1)         signal = np.fromstring(signal, 'Int16')         fs = wav_file.getframerate()         wav_file.close() 

You should process the stream, if it was a wav, the code above works. For an image, you should store on the database or upload to AWS S3 or Google Storage