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Connect to FreshBooks Data as a Federated Tables in MySQL

Use the SQL Gateway and the ODBC Driver to set up federated tables for FreshBooks data in MySQL .

You can use the SQL Gateway to configure a MySQL remoting service and set up federated tables for FreshBooks data. The service is a daemon process that provides a MySQL interface to the CData ODBC Driver for FreshBooks: After you have started the service, you can create a server and tables using the FEDERATED Storage Engine in MySQL. You can then work with FreshBooks data just as you would local MySQL tables.

Connect to FreshBooks Data

If you have not already done so, provide values for the required connection properties in the data source name (DSN). You can use the built-in Microsoft ODBC Data Source Administrator to configure the DSN. This is also the last step of the driver installation. See the "Getting Started" chapter in the help documentation for a guide to using the Microsoft ODBC Data Source Administrator to create and configure a DSN.

To connect to FreshBooks, you can set the CompanyName and Token connection properties. Alternatively, you can use the OAuth authentication standard.

OAuth can be used to enable other users to access their own company data. To authenticate using OAuth, you will need to obtain the OAuthClientId and OAuthClientSecret by registering an app. See the "Getting Started" chapter of the help documentation for a guide to using OAuth.

Configure the SQL Gateway

See the SQL Gateway Overview to set up connectivity to FreshBooks data as a virtual MySQL database. You will configure a MySQL remoting service that listens for MySQL requests from clients. The service can be configured in the SQL Gateway UI.

Create a FEDERATED Server and Tables for FreshBooks Data

After you have configured and started the service, create a FEDERATED server to simplify the process of creating FEDERATED tables:

Create a FEDERATED Server

The following statement will create a FEDERATED server based on the ODBC Driver for FreshBooks. Note that the username and password of the FEDERATED server must match a user account you defined on the Users tab of the SQL Gateway.

CREATE SERVER fedFreshBooks
FOREIGN DATA WRAPPER mysql
OPTIONS (USER 'sql_gateway_user', PASSWORD 'sql_gateway_passwd', HOST 'sql_gateway_host', PORT ####, DATABASE 'CData FreshBooks Sys');

Create a FEDERATED Table

To create a FEDERATED table using our newly created server, use the CONNECTION keyword and pass the name of the FEDERATED server and the remote table (Clients). Refer to the following template for the statement to create a FEDERATED table:

CREATE TABLE fed_clients (
  ...,
  username  TYPE(LEN),
  credit  TYPE(LEN),
  ...,
)
ENGINE=FEDERATED
DEFAULT CHARSET=latin1
CONNECTION='fedFreshBooks/clients';

NOTE: The table schema for the FEDERATED table must match the remote table schema exactly. You can always connect directly to the MySQL remoting service using any MySQL client and run a SHOW CREATE TABLE query to get the table schema.

Execute Queries

You can now execute queries to the FreshBooks FEDERATED tables from any tool that can connect to MySQL, which is particularly useful if you need to JOIN data from a local table with data from FreshBooks. Refer to the following example:

SELECT 
  fed_clients.username, 
  local_table.custom_field 
FROM 
  local_table 
JOIN 
  fed_clients 
ON 
  local_table.foreign_username = fed_clients.username;