add code for latest blog post

Author: mattmakai

README.md

@@ -7,6 +7,7 @@ Posts and associated code:
 
 |Post|Code Directory|
 |---|---|
+|Higher Accuracy Twilio Voice Transcriptions with AssemblyAI & Python|[accurate-twilio-voice-call-recording-transcriptions-assemblyai](./accurate-twilio-voice-call-recording-transcriptions-assemblyai)|
 |[Using Sentry to Handle Python Exceptions in Django Projects](https://www.fullstackpython.com/blog/sentry-handle-exceptions-django-projects.html)|[sentry-handle-exceptions-django-projects](./sentry-handle-exceptions-django-projects)|
 |[How to Transcribe Speech Recordings into Text with Python](https://www.fullstackpython.com/blog/transcribe-recordings-speech-text-assemblyai.html)|[transcribe-speech-text-script](./transcribe-speech-text-script)|
 |[Tracking Daily User Data in Django with django-user-visit](https://www.fullstackpython.com/blog/track-daily-user-data-django-user-visit.html)|[track-daily-user-data-django-user-visit](./track-daily-user-data-django-user-visit)|

accurate-twilio-voice-call-recording-transcriptions-assemblyai/app.py

@@ -0,0 +1,59 @@
+import os
+from flask import Flask, request
+from twilio.twiml.voice_response import VoiceResponse
+from twilio.rest import Client
+
+
+app = Flask(__name__)
+
+# pulls credentials from environment variables
+client = Client()
+
+BASE_URL = os.getenv("BASE_URL")
+twiml_instructions_url = "{}/record".format(BASE_URL)
+recording_callback_url = "{}/callback".format(BASE_URL)
+
+twilio_phone_number = os.getenv("TWILIO_PHONE_NUMBER")
+
+
+@app.route("/record", methods=["GET", "POST"])
+def record():
+    """Returns TwiML which prompts the caller to record a message"""
+    # Start our TwiML response
+    response = VoiceResponse()
+
+    # Use <Say> to give the caller some instructions
+    response.say('Ahoy! Call recording starts now.')
+
+    # Use <Record> to record the caller's message
+    response.record()
+
+    # End the call with <Hangup>
+    response.hangup()
+
+    return str(response)
+
+
+@app.route("/dial/<int:phone_number>")
+def dial(phone_number):
+    """Dials an outbound phone call to the number in the URL. Just
+    as a heads up you will never want to leave a URL like this exposed
+    without authentication and further phone number format verification.
+    phone_number should be just the digits with the country code first,
+    for example 14155559812."""
+    call = client.calls.create(
+            to='+{}'.format(phone_number),
+            from_=twilio_phone_number,
+            url=twiml_instructions_url,
+    )
+    print(call.sid)
+    return "dialing +{}".format(phone_number)
+
+
+@app.route("/get-recording-url/<call_sid>")
+def get_recording_url(call_sid):
+    recording_urls = ""
+    call = client.calls.get(call_sid)
+    for r in call.recordings.list():
+        recording_urls="\n".join([recording_urls, r.uri])
+    return str(recording_urls)

accurate-twilio-voice-call-recording-transcriptions-assemblyai/print_transcription.py

@@ -0,0 +1,14 @@
+import os
+import requests
+
+endpoint = "https://api.assemblyai.com/v2/transcript/{}".format(os.getenv("TRANSCRIPTION_ID"))
+
+headers = {
+    "authorization": os.getenv("ASSEMBLYAI_KEY"),
+}
+
+response = requests.get(endpoint, headers=headers)
+
+print(response.json())
+print("\n")
+print(response.json()['text'])

accurate-twilio-voice-call-recording-transcriptions-assemblyai/requirements.txt

@@ -0,0 +1,3 @@
+Flask==1.1.2
+requests==2.24.0
+twilio==6.45.2

accurate-twilio-voice-call-recording-transcriptions-assemblyai/transcribe.py

@@ -0,0 +1,17 @@
+import os
+import requests
+
+endpoint = "https://api.assemblyai.com/v2/transcript"
+
+json = {
+  "audio_url": os.getenv("RECORDING_URL")
+}
+
+headers = {
+    "authorization": os.getenv("ASSEMBLYAI_KEY"),
+    "content-type": "application/json"
+}
+
+response = requests.post(endpoint, json=json, headers=headers)
+
+print(response.json())