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Automate Tasks in Microsoft Flow Using the CData API Server and Google Directory ADO.NET Provider

Automate actions like sending emails to a contact list, posting to social media, or syncing CRM and ERP.

Microsoft Flow makes it easy to automate tasks that involve data from multiple systems, on premises or in the cloud. With the CData API Server and Google Directory ADO.NET Provider (or any of 180+ other ADO.NET Providers), line-of-business users have a native way to create actions based on Google Directory triggers in Microsoft Flow; the API Server makes it possible for SaaS applications like Microsoft Flow to integrate seamlessly with Google Directory data through data access standards like Swagger and OData. This article shows how to use wizards in Microsoft Flow and the API Server for Google Directory to create a trigger -- entities that match search criteria -- and send an email based on the results.

Set Up the API Server

Follow the steps below to begin producing secure and Swagger-enabled Google Directory APIs:

Deploy

The API Server runs on your own server. On Windows, you can deploy using the stand-alone server or IIS. On a Java servlet container, drop in the API Server WAR file. See the help documentation for more information and how-tos.

The API Server is also easy to deploy on Microsoft Azure, Amazon EC2, and Heroku.

Connect to Google Directory

After you deploy, provide authentication values and other connection properties by clicking Settings -> Connections in the API Server administration console. You can then choose the entities you want to allow the API Server access to by clicking Settings -> Resources.

Google uses the OAuth authentication standard. You can authorize the data provider to access Google Spreadsheets as an individual user or with a Google Apps Domain service account. See the Getting Started section of the data provider help documentation for an authentication guide.

You will also need to enable CORS and define the following sections on the Settings -> Server page. As an alternative, you can select the option to allow all domains without '*'.

  1. Access-Control-Allow-Origin: Set this to a value of '*' or specify the domains that are allowed to connect.
  2. Access-Control-Allow-Methods: Set this to a value of "GET,PUT,POST,OPTIONS".
  3. Access-Control-Allow-Headers: Set this to "x-ms-client-request-id, authorization, content-type".

Authorize API Server Users

After determining the OData services you want to produce, authorize users by clicking Settings -> Users. The API Server uses authtoken-based authentication and supports the major authentication schemes. You can authenticate as well as encrypt connections with SSL. Access can also be restricted by IP address; access is restricted to only the local machine by default.

For simplicity, we will allow the authtoken for API users to be passed in the URL. You will need to add a setting in the Application section of the settings.cfg file, located in the data directory. On Windows, this is the app_data subfolder in the application root. In the Java edition, the location of the data directory depends on your operation system:

  1. Windows: C:\ProgramData\CData
  2. Unix or Mac OS X: ~/cdata
[Application] AllowAuthtokenInURL = true

Add Google Directory Data to a Flow

You can use the built-in HTTP + Swagger connector to use a wizard to design a Google Directory process flow:

  1. In Microsoft Flow, click My Flows -> Create from Blank.
  2. Select the Recurrence action and select a time interval for sending emails. This article uses 1 day.
  3. Add an HTTP + Swagger action by searching for Swagger.
  4. Enter the URL to the Swagger metadata document: https://MySite:MyPort/api.rsc/@MyAuthtoken/$oas
  5. Select the "Return MyTable" operation.
  6. Build the OData query to retrieve Google Directory data. This article defines the following OData filter expression in the $filter box:

    Status eq 'confirmed'

    See the API Server help documentation for more on filtering and examples of the supported OData.

Trigger an Action

You can now work with MyTable entities in your process flow. Follow the steps to send an automated email:

  1. Add an SMTP - Send Email action.
  2. Enter the address and credentials for the SMTP server and name the connection. Be sure to enable encryption if supported by your server.
  3. Enter the message headers and body. You can add Google Directory columns in these boxes.