An Introduction To Web Call Application In Django

1. What is Twilio?

This is http api that allows the user to make a web based call and sms application. The objective of this powerfull api is help to make a telephony applications.

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2. What is ngrok?

This is a cross-platform application that provide facility to use local server on internet.

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3. How To Setup Twilio?

Step - 1: You have to create a twilio account on https://www.twilio.com/try-twilio

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Step - 2: after create a twilio account you will get credit amount almost $15

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Step - 3: When amount credited in you account then buy a twilio number

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Step - 4: then add the number at phone numbers >> manage >> verified caller ids >> Add new caller ids

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Step - 5: Now, Its time setup django project

For setup the django project take the reference from here - https://docs.djangoproject.com/en/4.0/intro/tutorial01/

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Step - 6: create an application

python manage.py startapp twi_call

pip install twilio

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step - 7: In twi_call views.py file

you have to import these packages

from django.http import HttpResponse

from django.views.decorators.csrf import csrf_exempt

from twilio.rest import Client

account_sid= 'AC4fa03sd54f65sd4fsd51f0238ff5a26e'

auth_token = 'e9442321ddf81b39383464d2dc9d0d78aff8730a6fdr'

client = Client(account_sid, auth_token)

@csrf_exempt

def answer(self):

call = client.calls.create(

twiml='<Response><Say> Hello i am twilio</Say></Response>',

to='#############',//registered contact no.

from_='##########'//twilio phone number

)

return HttpResponse("Thank you")

you will get account_sid and auth_token from user settings >> console

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Step - 8: setup url for above function

from twi_call import views

urlpatterns = [

path('admin/', admin.site.urls),

path('answer', views.answer)

]

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4. You have setup your django project and twilio account, Now its time setup ngrok

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Step - 1: Create a account in ngrok from this url - https://dashboard.ngrok.com/signup

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Step - 2: After login via ngrok account you will get the screen like :

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Step - 3: Click on Download button

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Step - 4: unzip the file

linux -

unzip /path/to/ngrok.zip

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Step - 5: connect to the server

ngrok config add-authtoken 26uw7VdPF4gPxxa1sXN9dT1ErBW_3jVtku5zgbsNPABWM184J

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Step-6: Run ngrok via this command

ngrok http 8000

after execute this command you will get the output screen like this

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5. run django server

python manage.py runserver

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6. search in browser

https://413e-223-181-167-29.ngrok.io/answer

then you will received a call on phone

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If you follow the above steps, you will able to create web call application

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