Connect to Live SAP Ariba Procurement Data in PostGresSQL Interface through CData Connect Cloud

There are a vast number of PostgreSQL clients available on the Internet. PostgreSQL is a popular interface for data access. When you pair PostgreSQL with CData Connect Cloud, you gain database-like access to live SAP Ariba Procurement data from PostgreSQL. In this article, we walk through the process of connecting to SAP Ariba Procurement data in Connect Cloud and establishing a connection between Connect Cloud and PostgreSQL using a TDS foreign data wrapper (FDW).

CData Connect Cloud provides a pure SQL Server interface for SAP Ariba Procurement, allowing you to query data from SAP Ariba Procurement without replicating the data to a natively supported database. Using optimized data processing out of the box, CData Connect Cloud pushes all supported SQL operations (filters, JOINs, etc.) directly to SAP Ariba Procurement, leveraging server-side processing to return the requested SAP Ariba Procurement data quickly.

Connect to SAP Ariba Procurement in Connect Cloud

CData Connect Cloud uses a straightforward, point-and-click interface to connect to data sources.

1. Log into Connect Cloud, click Connections and click Add Connection

2. Select "SAP Ariba Procurement" from the Add Connection panel

3. Enter the necessary authentication properties to connect to SAP Ariba Procurement.

   In order to connect with SAP Ariba Procurement, set the following:

   • ANID: Your Ariba Network ID.
   • ANID: Specify which API you would like the provider to retrieve SAP Ariba data from. Select the Buyer or Supplier API based on your business role (possible values are PurchaseOrdersBuyerAPIV1 or PurchaseOrdersSupplierAPIV1).
   • Environment: Indicate whether you are connecting to a test or production environment (possible values are TEST or PRODUCTION).

   Authenticating with OAuth

   After setting connection properties, you need to configure OAuth connectivity to authenticate.

   • Set AuthScheme to OAuthClient.
   • Register an application with the service to obtain the APIKey, OAuthClientId and OAuthClientSecret.

     For more information on creating an OAuth application, refer to the Help documentation.

   Automatic OAuth

   After setting the following, you are ready to connect:

   APIKey: The Application key in your app settings. OAuthClientId: The OAuth Client Id in your app settings. OAuthClientSecret: The OAuth Secret in your app settings.

   When you connect, the provider automatically completes the OAuth process:

   1. The provider obtains an access token from SAP Ariba and uses it to request data.
   2. The provider refreshes the access token automatically when it expires.
   3. The OAuth values are saved in memory relative to the location specified in OAuthSettingsLocation.
   
4. Click Create & Test
5. Navigate to the Permissions tab in the Add SAP Ariba Procurement Connection page and update the User-based permissions.

Add a Personal Access Token

If you are connecting from a service, application, platform, or framework that does not support OAuth authentication, you can create a Personal Access Token (PAT) to use for authentication. Best practices would dictate that you create a separate PAT for each service, to maintain granularity of access.

1. Click on your username at the top right of the Connect Cloud app and click User Profile.
2. On the User Profile page, scroll down to the Personal Access Tokens section and click Create PAT.
3. Give your PAT a name and click Create.

4. The personal access token is only visible at creation, so be sure to copy it and store it securely for future use.

Build the TDS Foreign Data Wrapper

The Foreign Data Wrapper can be installed as an extension to PostgreSQL, without recompiling PostgreSQL. The tds_fdw extension is used as an example (https://github.com/tds-fdw/tds_fdw).

1. You can clone and build the git repository via something like the following view source: sudo apt-get install git git clone https://github.com/tds-fdw/tds_fdw.git cd tds_fdw make USE_PGXS=1 sudo make USE_PGXS=1 install Note: If you have several PostgreSQL versions and you do not want to build for the default one, first locate where the binary for pg_config is, take note of the full path, and then append PG_CONFIG= after USE_PGXS=1 at the make commands.
2. After you finish the installation, then start the server: sudo service postgresql start
3. Then go inside the Postgres database psql -h localhost -U postgres -d postgres Note: Instead of localhost you can put the IP where your PostgreSQL is hosted.

Connect to SAP Ariba Procurement data as a PostgreSQL Database and query the data!

After you have installed the extension, follow the steps below to start executing queries to SAP Ariba Procurement data:

1. Log into your database.
2. Load the extension for the database: CREATE EXTENSION tds_fdw;
3. Create a server object for SAP Ariba Procurement data: CREATE SERVER "SAPAribaProcurement1" FOREIGN DATA WRAPPER tds_fdw OPTIONS (servername'tds.cdata.com', port '14333', database 'SAPAribaProcurement1');
4. Configure user mapping with your email and Personal Access Token from your Connect Cloud account: CREATE USER MAPPING for postgres SERVER "SAPAribaProcurement1" OPTIONS (username '[email protected]', password 'your_personal_access_token' );
5. Create the local schema: CREATE SCHEMA "SAPAribaProcurement1";
6. Create a foreign table in your local database: #Using a table_name definition: CREATE FOREIGN TABLE "SAPAribaProcurement1".Orders ( id varchar, Revision varchar) SERVER "SAPAribaProcurement1" OPTIONS(table_name 'SAPAribaProcurement.Orders', row_estimate_method 'showplan_all'); #Or using a schema_name and table_name definition: CREATE FOREIGN TABLE "SAPAribaProcurement1".Orders ( id varchar, Revision varchar) SERVER "SAPAribaProcurement1" OPTIONS (schema_name 'SAPAribaProcurement', table_name 'Orders', row_estimate_method 'showplan_all'); #Or using a query definition: CREATE FOREIGN TABLE "SAPAribaProcurement1".Orders ( id varchar, Revision varchar) SERVER "SAPAribaProcurement1" OPTIONS (query 'SELECT * FROM SAPAribaProcurement.Orders', row_estimate_method 'showplan_all'); #Or setting a remote column name: CREATE FOREIGN TABLE "SAPAribaProcurement1".Orders ( id varchar, col2 varchar OPTIONS (column_name 'Revision')) SERVER "SAPAribaProcurement1" OPTIONS (schema_name 'SAPAribaProcurement', table_name 'Orders', row_estimate_method 'showplan_all');
7. You can now execute read/write commands to SAP Ariba Procurement: SELECT id, Revision FROM "SAPAribaProcurement1".Orders;

More Information & Free Trial

Now, you have created a simple query from live SAP Ariba Procurement data. For more information on connecting to SAP Ariba Procurement (and more than 100 other data sources), visit the Connect Cloud page. Sign up for a free trial and start working with live SAP Ariba Procurement data in PostgreSQL.