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Google BigQuery Python Samples
===============================================================================

.. image:: https://gstatic.com/cloudssh/images/open-btn.png
   :target: https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/python-docs-samples&page=editor&open_in_editor=bigquery/cloud-client/README.rst


This directory contains samples for Google BigQuery. `Google BigQuery`_ is Google's fully managed, petabyte scale, low cost analytics data warehouse. BigQuery is NoOps—there is no infrastructure to manage and you don't need a database administrator—so you can focus on analyzing data to find meaningful insights, use familiar SQL, and take advantage of our pay-as-you-go model.




.. _Google BigQuery: https://cloud.google.com/bigquery/docs


To run the sample, you need to have the `BigQuery Admin` role.



Setup
-------------------------------------------------------------------------------


Authentication
++++++++++++++

This sample requires you to have authentication setup. Refer to the
`Authentication Getting Started Guide`_ for instructions on setting up
credentials for applications.

.. _Authentication Getting Started Guide:
    https://cloud.google.com/docs/authentication/getting-started

Install Dependencies
++++++++++++++++++++

#. Clone python-docs-samples and change directory to the sample directory you want to use.

    .. code-block:: bash

        $ git clone https://github.com/GoogleCloudPlatform/python-docs-samples.git

#. Install `pip`_ and `virtualenv`_ if you do not already have them. You may want to refer to the `Python Development Environment Setup Guide`_ for Google Cloud Platform for instructions.

   .. _Python Development Environment Setup Guide:
       https://cloud.google.com/python/setup

#. Create a virtualenv. Samples are compatible with Python 3.7+.

    .. code-block:: bash

        $ virtualenv env
        $ source env/bin/activate

#. Install the dependencies needed to run the samples.

    .. code-block:: bash

        $ pip install -r requirements.txt

.. _pip: https://pip.pypa.io/
.. _virtualenv: https://virtualenv.pypa.io/

Samples
-------------------------------------------------------------------------------

Quickstart
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

.. image:: https://gstatic.com/cloudssh/images/open-btn.png
   :target: https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/python-docs-samples&page=editor&open_in_editor=bigquery/cloud-client/quickstart.py,bigquery/cloud-client/README.rst




To run this sample:

.. code-block:: bash

    $ python quickstart.py


Simple Application
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

.. image:: https://gstatic.com/cloudssh/images/open-btn.png
   :target: https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/python-docs-samples&page=editor&open_in_editor=bigquery/cloud-client/simple_app.py,bigquery/cloud-client/README.rst




To run this sample:

.. code-block:: bash

    $ python simple_app.py


User Credentials
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

.. image:: https://gstatic.com/cloudssh/images/open-btn.png
   :target: https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/python-docs-samples&page=editor&open_in_editor=bigquery/cloud-client/user_credentials.py,bigquery/cloud-client/README.rst




To run this sample:

.. code-block:: bash

    $ python user_credentials.py

    usage: user_credentials.py [-h] [--launch-browser] project

    Command-line application to run a query using user credentials.

    You must supply a client secrets file, which would normally be bundled with
    your application.

    positional arguments:
      project           Project to use for BigQuery billing.

    optional arguments:
      -h, --help        show this help message and exit
      --launch-browser  Use a local server flow to authenticate.





The client library
-------------------------------------------------------------------------------

This sample uses the `Google Cloud Client Library for Python`_.
You can read the documentation for more details on API usage and use GitHub
to `browse the source`_ and  `report issues`_.

.. _Google Cloud Client Library for Python:
    https://googlecloudplatform.github.io/google-cloud-python/
.. _browse the source:
    https://github.com/GoogleCloudPlatform/google-cloud-python
.. _report issues:
    https://github.com/GoogleCloudPlatform/google-cloud-python/issues


.. _Google Cloud SDK: https://cloud.google.com/sdk/