Sinch Python SDK

Here you'll find documentation related to the Sinch Python SDK, including how to install it, initialize it, and start developing Python code using Sinch services.

To use Sinch services, you'll need a Sinch account and access keys. You can sign up for an account and create access keys at dashboard.sinch.com.

For more information on the Sinch APIs on which this SDK is based, refer to the official developer documentation portal.

• Prerequisites
• Installation
• Getting started
• Logging

Prerequisites

• Python in one of the supported versions - 3.9, 3.10, 3.11, 3.12, 3.13, 3.14
• pip
• Sinch account

Installation

You can install this package by typing: pip install sinch

Getting started

Client initialization

To initialize communication with Sinch backed, credentials obtained from Sinch portal have to be provided to the main client class of this SDK. It's highly advised to not hardcode those credentials, but to fetch them from environment variables:

from sinch import SinchClient

sinch_client = SinchClient(
    key_id="key_id",
    key_secret="key_secret",
    project_id="some_project",
    application_key="application_key",
    application_secret="application_secret"
)

import os
from sinch import SinchClient

sinch_client = SinchClient(
    key_id=os.getenv("KEY_ID"),
    key_secret=os.getenv("KEY_SECRET"),
    project_id=os.getenv("PROJECT_ID"),
    application_key=os.getenv("APPLICATION_KEY"),
    application_secret=os.getenv("APPLICATION_SECRET")
)

Products

Sinch client provides access to the following Sinch products:

• Numbers
• SMS
• Verification
• Voice API
• Conversation API (beta release)

Logging

Logging configuration for this SDK utilizes following hierarchy:

1. If no configuration was provided via logger_name or logger configurable, SDK will inherit configuration from the root logger with the Sinch prefix.
2. If logger_name configurable was provided, SDK will use logger related to that name. For example: myapp.sinch will inherit configuration from the myapp logger.
3. If logger (logger instance) configurable was provided, SDK will use that particular logger for all its logging operations.

If all logging returned by this SDK needs to be disabled, usage of NullHanlder provided by the standard logging module is advised.

Sample apps

Usage example of the numbers domain:

available_numbers = sinch_client.numbers.available.list(
    region_code="US",
    number_type="LOCAL"
)

Returned values are represented as Python dataclasses:

ListAvailableNumbersResponse(
    available_numbers=[
        Number(
            phone_number='+17862045855',
            region_code='US',
            type='LOCAL',
            capability=['SMS', 'VOICE'],
            setup_price={'currency_code': 'EUR', 'amount': '0.80'},
            monthly_price={'currency_code': 'EUR', 'amount': '0.80'}
            ...

Handling exceptions

Each API throws a custom, API related exception for an unsuccessful backed call.

Example for Numbers API:

from sinch.domains.numbers.exceptions import NumbersException

try:
    nums = sinch_client.numbers.available.list(
        region_code="US",
        number_type="LOCAL"
    )
except NumbersException as err:
    pass

For handling all possible exceptions thrown by this SDK use SinchException (superclass of all Sinch exceptions) from sinch.core.exceptions.

Custom HTTP client implementation

By default, two HTTP implementations are provided:

• Synchronous using requests HTTP library
• Asynchronous using httpx HTTP library

For creating custom HTTP client code, use either SinchClient or SinchClientAsync client and inject your transport during initialisation:

sinch_client = SinchClientAsync(
    key_id="Spanish",
    key_secret="Inquisition",
    project_id="some_project",
    transport=MyHTTPAsyncImplementation
)

Custom client has to obey types and methods described by HTTPTransport abstract base class:

class HTTPTransport(ABC):
    @abstractmethod
    def request(self, endpoint: HTTPEndpoint) -> HTTPResponse:
        pass

License

This project is licensed under the Apache License. See the LICENSE file for the license text.