POST method to upload file with json object in python flask app

I have got the answer after lot R&D.

request format

//user any client-sidecontent-type:multipart/form-data file: file need to upload  data: {"name":"abc","new_val":1}

python code to fetch from request object

data=json.loads(request.form.get('data'))file = request.files['file']

Just send the file and json at once and let request handle the rest.You can try the code below:

Server side:

import json                                                     import osfrom flask import Flask, requestfrom werkzeug import secure_filenameapp = Flask(__name__)                                           @app.route('/test_api',methods=['GET','POST'])            def test_api():                                               uploaded_file = request.files['document']    data = json.load(request.files['data'])    filename = secure_filename(uploaded_file.filename)    uploaded_file.save(os.path.join('path/where/to/save', filename))    print(data)    return 'success'if __name__ == '__main__':    app.run(host='localhost', port=8080)

Client Side:

import jsonimport requestsdata = {'test1':1, 'test2':2}filename = 'test.txt'with open(filename, 'w') as f:    f.write('this is a test file\n')url = "http://localhost:8080/test_api"files = [    ('document', (filename, open(filename, 'rb'), 'application/octet')),    ('data', ('data', json.dumps(data), 'application/json')),]r = requests.post(url, files=files)print(r)