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SendGrid library for Python

Project description

SendGrid-Python
===============

This library allows you to quickly and easily send emails through
SendGrid using Python.

.. image:: https://travis-ci.org/sendgrid/sendgrid-python.svg?branch=master
:target: https://travis-ci.org/sendgrid/sendgrid-python

Warning
-------

If you upgrade to version ``1.2.x``, the ``add_to`` method behaves differently. In the past this method defaulted to using the ``SMTPAPI`` header. Now you must explicitly call the ``smtpapi.add_to`` method. More on the ``SMTPAPI`` section.

Announcements
-------------

For users of our `Web API v3 endpoints`_, we have begun integrating v3 endpoints into this library. As part of this process we have implemented a test automation tool, TOX_. We are also updating and enhancing the core library code.

In no particular order, we have implemented a `few of the v3`_ endpoints already and would appreciate your feedback.

Thank you for your continued support!

API Key
-------

To use the SendGrid Web API, you will need an API Key. You can create one in your `SendGrid Dashboard`_.

Install
-------

.. code:: python

pip install sendgrid
# or
easy_install sendgrid

Example
-------

.. code:: python

import sendgrid

sg = sendgrid.SendGridClient('YOUR_SENDGRID_API_KEY')

message = sendgrid.Mail()
message.add_to('John Doe <john@email.com>')
message.set_subject('Example')
message.set_html('Body')
message.set_text('Body')
message.set_from('Doe John <doe@email.com>')
status, msg = sg.send(message)

#or

message = sendgrid.Mail(to='john@email.com', subject='Example', html='Body', text='Body', from_email='doe@email.com')
status, msg = sg.send(message)

Error handling
--------------

By default, ``.send`` method returns a tuple ``(http_status_code, message)``,
however you can pass ``raise_errors=True`` to ``SendGridClient`` constructor,
then ``.send`` method will raise ``SendGridClientError`` for 4xx errors,
and ``SendGridServerError`` for 5xx errors.

.. code:: python

from sendgrid import SendGridError, SendGridClientError, SendGridServerError

sg = sendgrid.SendGridClient('YOUR_SENDGRID_API_KEY', None, raise_errors=True)

try:
sg.send(message)
except SendGridClientError:
...
except SendGridServerError:
...

This behavior is going to be default from version 2.0.0. You are
encouraged to set ``raise_errors`` to ``True`` for forwards compatibility.

``SendGridError`` is a base-class for all SendGrid-related exceptions.

Usage
~~~~~

To begin using this library create a new instance of `SendGridClient` with your SendGrid API Key. To configure API keys, visit https://app.sendgrid.com/settings/api_keys.

.. code:: python

sg = sendgrid.SendGridClient('YOUR_SENDGRID_API_KEY')

Methods
~~~~~~~

There are multiple ways to add recipients:

add_to
^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_to('example@email.com')
# or
message.add_to('Example Dude <example@email.com>')
# or
message.add_to(['Example Dude <example@email.com>', 'john@email.com'])

add_to_name
^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_to('example@email.com')
message.add_to_name('Example Dude')

add_cc
^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_cc('example@email.com')
message.add_cc(['example@email.com', 'john@email.com'])

add_bcc
^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_bcc('example@email.com')
# or
message.add_bcc(['Example Dude <example@email.com>', 'john@email.com'])

set_from
^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_from('example@email.com')

set_from_name
^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_from('example@email.com')
message.set_from_name('Example Dude')

set_replyto
^^^^^^^^^^^

.. code:: python

message.sendgrid.Mail()
message.set_replyto('example@email.com')

set_subject
^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_subject('Example')

set_text
^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_text('Body')

set_html
^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_html('<html><body>Stuff, you know?</body></html>')

set_date
^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_date('Wed, 17 Dec 2014 19:21:16 +0000')

set_headers
^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_headers({'X-Sent-Using': 'SendGrid-API', 'X-Transport': 'web'});

Set File Attachments
~~~~~~~~~~~~~~~~~~~~

There are multiple ways to work with attachments:

add_attachment
^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_attachment('stuff.txt', './stuff.txt')
# or
message.add_attachment('stuff.txt', open('./stuff.txt', 'rb'))

add_attachment_stream
^^^^^^^^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_attachment_stream('filename', 'somerandomcontentyouwant')
# strings, unicode, or BytesIO streams

add_content_id
^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_attachment('image.png', open('./image.png', 'rb'))
message.add_content_id('image.png', 'ID_IN_HTML')
message.set_html('<html><body>TEXT BEFORE IMAGE<img src="cid:ID_IN_HTML"></img>AFTER IMAGE</body></html>')

WEB API v3
----------

To use the SendGrid Web API v3, you will need an API Key. You can create one in your `SendGrid Dashboard`_.

.. _APIKeysAnchor:

`APIKeys`_
~~~~~~~~~~

List all API Keys belonging to the authenticated user.

.. code:: python

client = sendgrid.SendGridAPIClient('SENDGRID_API_KEY')
status, msg = client.apikeys.get()

Generate a new API Key for the authenticated user

.. code:: python

client = sendgrid.SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
name = "My Amazing API Key"
status, msg = client.apikeys.post(name)

Revoke an existing API Key

.. code:: python

client = sendgrid.SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
status, msg = client.apikeys.delete(api_key_id)

Update the name of an existing API Key

.. code:: python

client = sendgrid.SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
name = "My NEW API Key 3000"
status, msg = client.apikeys.patch(api_key_id, name)

`Suppression Management`_
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Unsubscribe Manager gives your recipients more control over the types of emails they want to receive by letting them opt out of messages from a certain type of email.

Unsubscribe Groups
~~~~~~~~~~~~~~~~~~~

Retrieve all suppression groups associated with the user.

.. code:: python

client = sendgrid.SendGridAPIClient('SENDGRID_API_KEY')
status, msg = client.asm_groups.get()

Get a single record.

.. code:: python

status, msg = client.asm_groups.get(record_id)

Create a new suppression group.

.. code:: python

status, msg = client.asm_groups.post(name, description, is_default)

Suppressions
~~~~~~~~~~~~~~~~

Suppressions are email addresses that can be added to groups to prevent certain types of emails from being delivered to those addresses.

Add recipient addresses to the suppressions list for a given group.

.. code:: python

client = sendgrid.SendGridAPIClient('SENDGRID_API_KEY')
group_id = <group_id_number> # If no group_id_number, the emails will be added to the global suppression group
emails = ['example@example.com', 'example@example.com']
status, msg = client.asm_suppressions.post(group_id, emails)

Get suppressed addresses for a given group.

.. code:: python

status, msg = client.asm_suppressions.get(<group_id>)

Delete a recipient email from the suppressions list for a group.

.. code:: python

status, msg = client.asm_suppressions.delete(<group_id>,<email_address>)

Global Suppressions
~~~~~~~~~~~~~~~~~~~~~~~

Global Suppressions are email addresses that will not receive any emails.

Check if a given email is on the global suppression list.

.. code:: python

client = sendgrid.SendGridAPIClient('SENDGRID_API_KEY')
email = ['example@example.com']
status, msg = client.asm_global_suppressions.get(email)

Get a list of all SendGrid globally unsubscribed emails.

.. code:: python
client = sendgrid.SendGridAPIClient('SENDGRID_API_KEY')
status, msg = client.suppressions.get()

Add an email to the global suppression list.

.. code:: python
client = sendgrid.SendGridAPIClient('SENDGRID_API_KEY')
email = ['example@example.com']
status, msg = client.asm_global_suppressions.post(email)

Delete an email from the global suppression list.

.. code:: python
client = sendgrid.SendGridAPIClient('SENDGRID_API_KEY')
email = 'example@example.com'
status, msg = client.asm_global_suppressions.delete(email)

`Global Stats`_
~~~~~~~~~~~~~~~~~~~~~~~

Global Stats provide all of your user's email statistics for a given date range.

.. code:: python
start_date = '2015-10-01' # required
end_date = None # optional
aggregated_by = 'week' # optional, must be day, week or month
status, msg = client.stats.get(start_date, end_date, aggregated_by)

SendGrid's `X-SMTPAPI`_
-----------------------

If you wish to use the X-SMTPAPI on your own app, you can use the
`SMTPAPI Python library`_.

There are implementations for setter methods too.

Example
~~~~~~~

.. code:: python

sg = sendgrid.SendGridClient('SENDGRID_API_KEY')
message = sendgrid.Mail()
message.add_substitution(':first_name', 'John')
message.smtpapi.add_to('John <example@example.com>')
message.set_subject('Testing from the Python library using the SMTPAPI')
message.set_html('<b>:first_name, this was a successful test of using the SMTPAPI library!</b>')
message.set_text(':name, this was a successful test of using the SMTPAPI library!')
message.set_from('Jane <example@example.com>')
sg.send(message)

`Recipients`_
~~~~~~~~~~~~~

.. code:: python

message = sendgrid.Mail()
message.smtpapi.add_to('example@email.com')

`Substitution`_
~~~~~~~~~~~~~~~

.. code:: python

message = sendgrid.Mail()
message.smtpapi.add_substitution('key', 'value')

add_substitution
^^^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_substitution('key', 'value')

set_substitutions
^^^^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_substitutions({'key1': ['value1', 'value2'], 'key2': ['value3', 'value4']})

`Section`_
~~~~~~~~~~

.. code:: python

message = sendgrid.Mail()
message.smtpapi.add_section('section', 'value')

add_section
^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_section('section', 'value')

set_sections
^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_sections({'section1': 'value1', 'section2': 'value2'})

`Category`_
~~~~~~~~~~~

.. code:: python

message = sendgrid.Mail()
message.smtpapi.add_category('category')

add_category
^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_category('category')

set_categories
^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_categories(['category1', 'category2'])

`Unique Arguments`_
~~~~~~~~~~~~~~~~~~~

.. code:: python

message = sendgrid.Mail()
message.smtpapi.add_unique_arg('key', 'value')

add_unique_arg
^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_unique_arg('key', 'value')

set_unique_args
^^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_unique_args({'key1': 'value1', 'key2': 'value2'})

`Filter`_
~~~~~~~~~

.. code:: python

message = sendgrid.Mail()
message.smtpapi.add_filter('filter', 'setting', 'value')

add_filter
^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.add_filter('filter', 'setting', 'value')

`ASM Group`_
~~~~~~~~~~~~

.. code:: python

message = sendgrid.Mail()
message.smtpapi.set_asm_group_id(value)

set_asm_group_id
^^^^^^^^^^^^^^^^

.. code:: python

message = sendgrid.Mail()
message.set_asm_group_id(value)

Using Templates from the Template Engine
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. code:: python

message.add_filter('templates', 'enable', '1')
message.add_filter('templates', 'template_id', 'TEMPLATE-ALPHA-NUMERIC-ID')
message.add_substitution('key', 'value')

Tests
~~~~~

**Prerequisites:**

- Mac OS X Prerequisite:

.. code:: python

xcode-select --install

- Install pyenv and tox

.. code:: python

brew update
brew install pyenv
pip install tox

- Add `eval "$(pyenv init -)"` to your profile after installing tox, you only need to do this once.

.. code:: python

pyenv install 2.6.9
pyenv install 2.7.8
pyenv install 3.2.6
pyenv install 3.3.6
pyenv install 3.4.3
pyenv install 3.5.0

**Run the tests:**

.. code:: python

virtualenv venv
source venv/bin/activate #or . ./activate.sh
python setup.py install
pyenv local 3.5.0 3.4.3 3.3.6 3.2.6 2.7.8 2.6.9
pyenv rehash
tox

Deploying
~~~~~~~~~

- Confirm tests pass
- Bump the version in `sendgrid/version.py`
- Update `CHANGELOG.md`
- Confirm tests pass
- Commit `Version bump vX.X.X`
- `python setup.py sdist bdist_wininst upload`
- Push changes to GitHub
- Release tag on GitHub `vX.X.X`

.. _X-SMTPAPI: http://sendgrid.com/docs/API_Reference/SMTP_API/
.. _SMTPAPI Python library: https://github.com/sendgrid/smtpapi-python
.. _Substitution: http://sendgrid.com/docs/API_Reference/SMTP_API/substitution_tags.html
.. _Section: http://sendgrid.com/docs/API_Reference/SMTP_API/section_tags.html
.. _Category: http://sendgrid.com/docs/Delivery_Metrics/categories.html
.. _Unique Arguments: http://sendgrid.com/docs/API_Reference/SMTP_API/unique_arguments.html
.. _Filter: http://sendgrid.com/docs/API_Reference/SMTP_API/apps.html
.. _`Web API v3 endpoints`: https://sendgrid.com/docs/API_Reference/Web_API_v3/index.html
.. _TOX: https://testrun.org/tox/latest/
.. _`few of the v3`: APIKeysAnchor_
.. _`Suppression Management`: https://sendgrid.com/docs/API_Reference/Web_API_v3/Suppression_Management/index.html
.. _`Global Stats`: https://sendgrid.com/docs/API_Reference/Web_API_v3/Stats/global.html
.. _`SendGrid Dashboard`: https://app.sendgrid.com/settings/api_keys

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