Nexmo Client Library for Python

❗ This SDK and PyPi package have moved! It is now vonage, located at vonage/vonage-python-sdk. We will support this repository for 12 months, ending October 2021, with any needed bug or security fixes for the last release of v7.2.0. New features will be released under vonage, so to take advantage of those please make sure to switch to vonage as soon as possible so you don't miss out!

This is the Python client library for Nexmo's API. To use it you'll need a Nexmo account. Sign up for free at nexmo.com.

• Installation
• Usage
• SMS API
• Voice API
• Verify API
• Number Insight API
• Number Management API
• Managing Secrets
• Application API
• Overriding API Attributes
• Frequently Asked Questions
• License

Installation

To install the Python client library using pip:

pip install nexmo

To upgrade your installed client library using pip:

pip install nexmo --upgrade

Alternatively, you can clone the repository via the command line:

git clone git@github.com:Nexmo/nexmo-python.git

or by opening it on GitHub desktop.

Usage

Begin by importing the nexmo module:

import nexmo

Then construct a client object with your key and secret:

client = nexmo.Client(key=api_key, secret=api_secret)

For production, you can specify the NEXMO_API_KEY and NEXMO_API_SECRET environment variables instead of specifying the key and secret explicitly.

For newer endpoints that support JWT authentication such as the Voice API, you can also specify the application_id and private_key arguments:

client = nexmo.Client(application_id=application_id, private_key=private_key)

To check signatures for incoming webhook requests, you'll also need to specify the signature_secret argument (or the NEXMO_SIGNATURE_SECRET environment variable).

SMS API

SMS Class

Creating an instance of the SMS class

To create an instance of the SMS class follow these steps:

• Import the class

#Option 1
from nexmo import Sms

#Option 2
from nexmo.sms import Sms

#Option 3
import nexmo #then you can use nexmo.Sms() to create an instance

• Create an instance

#Option 1 - pass key and secret to the constructor
sms = Sms(key=NEXMO_API_KEY, secret=NEXMO_API_SECRET)

#Option 2 - Create a client instance and then pass the client to the Sms instance
client = Client(key=NEXMO_API_KEY, secret=NEXMO_API_SECRET)
sms = Sms(client)

Send an SMS

from nexmo import Sms
sms = Sms(key=NEXMO_API_KEY, secret=NEXMO_API_SECRET)
sms.send_message({
            "from": NEXMO_BRAND_NAME,
            "to": TO_NUMBER,
            "text": "A text message sent using the Nexmo SMS API",
})

Send SMS with unicode

sms.send_message({
    'from': NEXMO_BRAND_NAME,
    'to': TO_NUMBER,
    'text': 'こんにちは世界',
    'type': 'unicode',
})

Submit SMS Conversion

from nexmo import Client, Sms
client = Client(key=NEXMO_API_KEY, secret=NEXMO_SECRET)
sms = Sms(client)
response = sms.send_message({
    'from': NEXMO_BRAND_NAME,
    'to': TO_NUMBER,
    'text': 'Hi from Vonage'
})
sms.submit_sms_conversion(response['message-id'])

Voice API

Make a call

from nexmo import Client, Voice
client = Client(application_id=APPLICATION_ID, private_key=PRIVATE_KEY)
voice = Voice(client)
voice.create_all({
  'to': [{'type': 'phone', 'number': '14843331234'}],
  'from': {'type': 'phone', 'number': '14843335555'},
  'answer_url': ['https://example.com/answer']
})

Retrieve a list of calls

from nexmo import Client, Voice
client = Client(application_id=APPLICATION_ID, private_key=PRIVATE_KEY)
voice = Voice(client)
voice.get_calls()

Retrieve a single call

from nexmo import Client, Voice
client = Client(application_id=APPLICATION_ID, private_key=PRIVATE_KEY)
voice = Voice(client)
voice.get_call(uuid)

Update a call

from nexmo import Client, Voice
client = Client(application_id=APPLICATION_ID, private_key=PRIVATE_KEY)
voice = Voice(client)
response = voice.create_all({
  'to': [{'type': 'phone', 'number': '14843331234'}],
  'from': {'type': 'phone', 'number': '14843335555'},
  'answer_url': ['https://example.com/answer']
})
voice.update_call(response['uuid'], action='hangup')

Stream audio to a call

from nexmo import Client, Voice
client = Client(application_id=APPLICATION_ID, private_key=PRIVATE_KEY)
voice = Voice(client)
stream_url = 'https://nexmo-community.github.io/ncco-examples/assets/voice_api_audio_streaming.mp3'
response = voice.create_call({
  'to': [{'type': 'phone', 'number': '14843331234'}],
  'from': {'type': 'phone', 'number': '14843335555'},
  'answer_url': ['https://example.com/answer']
})
voice.send_audio(response['uuid'],stream_url=[stream_url])

Stop streaming audio to a call

from nexmo import Client, Voice
client = Client(application_id='0d4884d1-eae8-4f18-a46a-6fb14d5fdaa6', private_key='./private.key')
voice = Voice(client)
stream_url = 'https://nexmo-community.github.io/ncco-examples/assets/voice_api_audio_streaming.mp3'
response = voice.create_call({
  'to': [{'type': 'phone', 'number': '14843331234'}],
  'from': {'type': 'phone', 'number': '14843335555'},
  'answer_url': ['https://example.com/answer']
})
voice.send_audio(response['uuid'],stream_url=[stream_url])
voice.stop_audio(response['uuid'])

Send a synthesized speech message to a call

from nexmo import Client, Voice
client = Client(application_id=APPLICATION_ID, private_key=PRIVATE_KEY)
voice = Voice(client)
response = voice.create_call({
  'to': [{'type': 'phone', 'number': '14843331234'}],
  'from': {'type': 'phone', 'number': '14843335555'},
  'answer_url': ['https://example.com/answer']
})
voice.send_speech(response['uuid'], text='Hello from nexmo')

Stop sending a synthesized speech message to a call

>>> from nexmo import Client, Voice
>>> client = Client(application_id=APPLICATION_ID, private_key=APPLICATION_ID)
>>> voice = Voice(client)
>>> response = voice.create_call({
  'to': [{'type': 'phone', 'number': '14843331234'}],
  'from': {'type': 'phone', 'number': '14843335555'},
  'answer_url': ['https://example.com/answer']
})
>>> voice.send_speech(response['uuid'], text='Hello from nexmo')
>>> voice.stop_speech(response['uuid'])

Send DTMF tones to a call

from nexmo import Client, Voice
client = Client(application_id=APPLICATION_ID, private_key=PRIVATE_KEY)
voice = Voice(client)
response = voice.create_call({
  'to': [{'type': 'phone', 'number': '14843331234'}],
  'from': {'type': 'phone', 'number': '14843335555'},
  'answer_url': ['https://example.com/answer']
})
voice.send_dtmf(response['uuid'], digits='1234')

Get recording

response = client.get_recording(RECORDING_URL)

Verify API

Verify Class

Creating an instance of the class

To create an instance of the Verify class, Just follow the next steps: ​

• Import the class from module (3 different ways)

#First way
from nexmo import Verify
​
#Second way
from nexmo.verify import Verify
​
#Third valid way
import nexmo #then you can use nexmo.Verify() to create an instance

• Create the instance ​

#First way - pass key and secret to the constructor
verify = Verify(key=NEXMO_API_KEY, secret=NEXMO_API_SECRET)
​
#Second way - Create a client instance and then pass the client to the Verify contructor
client = Client(key=NEXMO_API_KEY, secret=NEXMO_API_SECRET)
verify = Verify(client)

Search for a Verification request

client = Client(key='API_KEY', secret='API_SECRET')

verify = Verify(client)
response = verify.search('69e2626cbc23451fbbc02f627a959677')

if response is not None:
    print(response['status'])

Send verification code

client = Client(key='API_KEY', secret='API_SECRET')

verify = Verify(client)
response = verify.request(number=RECIPIENT_NUMBER, brand='AcmeInc')

if response["status"] == "0":
    print("Started verification request_id is %s" % (response["request_id"]))
else:
    print("Error: %s" % response["error_text"])

Send verification code with workflow

client = Client(key='API_KEY', secret='API_SECRET')

verify = Verify(client)
response = verify.request(number=RECIPIENT_NUMBER, brand='AcmeInc', workflow_id=1)

if response["status"] == "0":
    print("Started verification request_id is %s" % (response["request_id"]))
else:
    print("Error: %s" % response["error_text"])

Check verification code

client = Client(key='API_KEY', secret='API_SECRET')

verify = Verify(client)
response = verify.check(REQUEST_ID, code=CODE)

if response["status"] == "0":
    print("Verification successful, event_id is %s" % (response["event_id"]))
else:
    print("Error: %s" % response["error_text"])

Cancel Verification Request

client = Client(key='API_KEY', secret='API_SECRET')

verify = Verify(client)
response = verify.cancel(REQUEST_ID)

if response["status"] == "0":
    print("Cancellation successful")
else:
    print("Error: %s" % response["error_text"])

Trigger next verification proccess

client = Client(key='API_KEY', secret='API_SECRET')

verify = Verify(client)
response = verify.trigger_next_event(REQUEST_ID)

if response["status"] == "0":
    print("Next verification stage triggered")
else:
    print("Error: %s" % response["error_text"])

Send payment authentication code

client = Client(key='API_KEY', secret='API_SECRET')

verify = Verify(client)
response = verify.psd2(number=RECIPIENT_NUMBER, payee=PAYEE, amount=AMOUNT)

if response["status"] == "0":
    print("Started PSD2 verification request_id is %s" % (response["request_id"]))
else:
    print("Error: %s" % response["error_text"])

Send payment authentication code with workflow

client = Client(key='API_KEY', secret='API_SECRET')

verify = Verify(client)
verify.psd2(number=RECIPIENT_NUMBER, payee=PAYEE, amount=AMOUNT, workflow_id: WORKFLOW_ID)

if response["status"] == "0":
    print("Started PSD2 verification request_id is %s" % (response["request_id"]))
else:
    print("Error: %s" % response["error_text"])

Number Insight API

Basic Number Insight

client.get_basic_number_insight(number='447700900000')

Docs: https://developer.nexmo.com/api/number-insight#getNumberInsightBasic

Standard Number Insight

client.get_standard_number_insight(number='447700900000')

Docs: https://developer.nexmo.com/api/number-insight#getNumberInsightStandard

Advanced Number Insight

client.get_advanced_number_insight(number='447700900000')

Docs: https://developer.nexmo.com/api/number-insight#getNumberInsightAdvanced

Managing Secrets

An API is provided to allow you to rotate your API secrets. You can create a new secret (up to a maximum of two secrets) and delete the existing one once all applications have been updated.

List Secrets

secrets = client.list_secrets(API_KEY)

Create A New Secret

Create a new secret (the created dates will help you know which is which):

client.create_secret(API_KEY, 'awes0meNewSekret!!;');

Delete A Secret

Delete the old secret (any application still using these credentials will stop working):

client.delete_secret(API_KEY, 'my-secret-id')

Application API

Create an application

response = client.application_v2.create_application({name='Example App', type='voice'})

Docs: https://developer.nexmo.com/api/application.v2#createApplication

Retrieve a list of applications

response = client.application_v2.list_applications()

Docs: https://developer.nexmo.com/api/application.v2#listApplication

Retrieve a single application

response = client.application_v2.get_application(uuid)

Docs: https://developer.nexmo.com/api/application.v2#getApplication

Update an application

response = client.application_v2.update_application(uuid, answer_method='POST')

Docs: https://developer.nexmo.com/api/application.v2#updateApplication

Delete an application

response = client.application_v2.delete_application(uuid)

Docs: https://developer.nexmo.com/api/application.v2#deleteApplication

Validate webhook signatures

client = nexmo.Client(signature_secret='secret')

if client.check_signature(request.query):
  # valid signature
else:
  # invalid signature

Docs: https://developer.nexmo.com/concepts/guides/signing-messages

Note: you'll need to contact support@nexmo.com to enable message signing on your account before you can validate webhook signatures.

JWT parameters

By default, the library generates short-lived tokens for JWT authentication.

Use the auth method to specify parameters for a longer life token or to specify a different token identifier:

client.auth(nbf=nbf, exp=exp, jti=jti)

Overriding API Attributes

In order to rewrite/get the value of variables used across all the Nexmo classes Python uses Call by Object Reference that allows you to create a single client for Sms/Voice Classes. This means that if you make a change on a client instance this will be available for the Sms class.

An example using setters/getters with Object references:

from nexmo import Client, Sms

#Defines the client
client = Client(key='YOUR_API_KEY', secret='YOUR_API_SECRET')
print(client.host()) # using getter for host -- value returned: rest.nexmo.com

#Define the sms instance
sms = Sms(client)

#Change the value in client
client.host('mio.nexmo.com') #Change host to mio.nexmo.com - this change will be available for sms

Overriding API Host / Host Attributes

These attributes are private in the client class and the only way to access them is using the getters/setters we provide.

from nexmo import Client

client = Client(key='YOUR_API_KEY', secret='YOUR_API_SECRET')
print(client.host()) # return rest.nexmo.com
client.host('mio.nexmo.com') # rewrites the host value to mio.nexmo.com
print(client.api_host()) # returns api.nexmo.com
client.api_host('myapi.nexmo.com') # rewrite the value of api_host

Frequently Asked Questions

Dropping support for Python 2.7

Back in 2014 when Guido van Rossum, Python's creator and principal author, made the announcement, January 1, 2020 seemed pretty far away. Python 2.7’s sunset has happened, after which there’ll be absolutely no more support from the core Python team. Many utilized projects pledge to drop Python 2 support in or before 2020. (Official statement here).

Just because 2.7 isn’t going to be maintained past 2020 doesn’t mean your applications or libraries suddenly stop working but as of this moment we won't give official support for upcoming releases. Please read the official "Porting Python 2 Code to Python 3" guide. Please also read the Python 3 Statement Practicalities for advice on sunsetting your Python 2 code.

Supported APIs

The following is a list of Vonage APIs and whether the Python SDK provides support for them:

API	API Release Status	Supported?
Account API	General Availability	✅
Alerts API	General Availability	✅
Application API	General Availability	✅
Audit API	Beta	❌
Conversation API	Beta	❌
Dispatch API	Beta	❌
External Accounts API	Beta	❌
Media API	Beta	❌
Messages API	Beta	❌
Number Insight API	General Availability	✅
Number Management API	General Availability	✅
Pricing API	General Availability	✅
Redact API	General Availability	✅
Reports API	Beta	❌
SMS API	General Availability	✅
Verify API	General Availability	✅
Voice API	General Availability	✅

Contributing

We ❤️ contributions! But if you plan to work on something big or controversial, please contact us first!

We recommend working on nexmo-python with a virtualenv. The following command will install all the Python dependencies you need to run the tests:

make install

The tests are all written with pytest. You run them with:

make test

License

This library is released under the MIT License.