Using Flask to reproduce an audio using json

Question

i'm trying to make an app in flask-python that using a json post send an audio using the gtts google library as the answer, but my method doesn't work. My code is the following.

from gtts import gTTS
from flask import Flask, send_file, request



app = Flask(__name__)

@app.route("/")
def t2s():
    text = request.get_json()
    obj = gTTS(text = text, slow = False, lang = 'en')    
    obj.save('audio.wav')
    return send_file('audio.wav')


if __name__ == "__main__":
    app.run(port=3000  , debug=True, use_reloader=True, host='0.0.0.0')

any suggestions?, i'm using postman.

Thanks a lot for the possible help

(You really need a better explanation of what goes wrong than "doesn't work"!) What does your JSON data look like? It could quite easily be something that isn't appropriate as the `text=` parameter to `gTTS()`. — jasonharper, Dec 11 '19 at 21:54
what means `doesn't work`? We can't read in your mind and don't expect that we will run code to see how it works. Besides it can works correctly on our computers. — furas, Dec 11 '19 at 22:03
always put full error message (starting at word "Traceback") in question (not comment) as text (not screenshot). There are other useful information. — furas, Dec 11 '19 at 22:03
if you want to send `POST` to this Flask then you have to use `@app.route("/", methods=['POST', 'GET'])` to get it. — furas, Dec 11 '19 at 22:08

score 3 · Accepted Answer · answered Dec 11 '19 at 22:13

Flask as default doesn't get POST requests and you have to use methods=['POST', 'GET']

from gtts import gTTS
from flask import Flask, send_file, request

app = Flask(__name__)

@app.route("/", methods=['POST', 'GET'])
def t2s():
    text = request.get_json()
    print(text)
    obj = gTTS(text = text, slow = False, lang = 'en')    
    obj.save('audio.wav')
    return send_file('audio.wav')

if __name__ == "__main__":
    app.run(host='0.0.0.0', port=3000)

And test (using mplayer on Linux):

import requests
import os

data = 'Hello World'

r = requests.post('http://127.0.0.1:3000/', json=data)

open('output.wav', 'wb').write(r.content)

os.system('mplayer output.wav')

this works, sorry for the hazing in the question, next time i will be more specific — 0xTochi, Dec 11 '19 at 22:38

Using Flask to reproduce an audio using json

1 Answers1