A PostgreSQL Interface for FedEx Data

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FedEx ODBC Driver

The FedEx ODBC Driver is a powerful tool that allows you to connect with live data from FedEx, directly from any applications that support ODBC connectivity.

Access FedEx data like you would a database - read, write, and update FedEx Packages, Shipments, Recipients, etc. through a standard ODBC Driver interface.



Use the SQL Gateway and FedEx ODBC Driver to create a PostgreSQL entry-point for data access.

There are a vast number of PostgreSQL clients available on the Internet. From standard Drivers to BI and Analytics tools, PostgreSQL is a popular interface for data access. Using the SQL Gateway included in our ODBC Drivers, you can now create PostgreSQL entry-points that you can connect to from any standard client.

To access FedEx data as a PostgreSQL database on Windows, use the CData SQL Gateway, the ODBC Driver for FedEx, and the MySQL foreign data wrapper from EnterpriseDB. In this article, we compile the foreign data wrapper in Visual Studio, install it as an extension, and query FedEx data from PostgreSQL Server.

Configure the Connection to FedEx

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

There are five pieces of information needed in order to authenticate its actions with the FedEx service. This information is below.

  • Server: This controls the URL where the requests should be sent. Common testing options for this are: "https://gatewaybeta.fedex.com:443/xml", "https://wsbeta.fedex.com:443/xml", "https://gatewaybeta.fedex.com:443/web-service", and "https://wsbeta.fedex.com:443/web-service"
  • DeveloperKey: This is the identifier part of the authentication key for the sender's identity. This value will be provided to you by FedEx after registration.
  • Password: This is the secret part of the authentication key for the sender's identity. This value will be provided to you by FedEx after registration.
  • AccountNumber: This valid 9-digit FedEx account number is used for logging into the FedEx server.
  • MeterNumber: This value is used for submitting requests to FedEx. This value will be provided to you by FedEx after registration.
  • PrintLabelLocation: This property is required if one intends to use the GenerateLabels or GenerateReturnLabels stored procedures. This should be set to the folder location where generated labels should be stored.

The Cache Database

Many of the useful tasks available from FedEx require a lot of data. To ensure this data is easy to input and recall later, utilizes a cache database to make these requests. You must set the cache connection properties:

  • CacheProvider: The specific database you are using to cache with. For example, org.sqlite.JDBC.
  • CacheConnection: The connection string to be passed to the cache provider. For example, jdbc:sqlite:C:/users/username/documents/fedexcache.db

Start the Remoting Service

The MySQL remoting service is a daemon process that listens for clients' incoming MySQL connections. See the setup guide in the SQL Gateway overview to configure the MySQL Remoting service in the CData SQL Gateway.

Build the MySQL Foreign Data Wrapper

The Foreign Data Wrapper can be installed as an extension to PostgreSQL, without recompiling PostgreSQL. If you are running PostgreSQL on a Unix-based system, you can use the PostgreSQL Extension Network (PGXN) to install the FDW, mysql_fdw. If you are running PostgreSQL on Windows, compile the extension to ensure that you are working with the latest version. Follow the steps below to make the necessary modifications to build the extension from Visual Studio:

Obtain Prerequisites

To build the foreign data wrapper, do the following:

  • Install PostgreSQL. This example uses an installation of PostgreSQL 9.4.
  • If you are using a 64-bit installation of PostgreSQL, obtain libintl.h from the PostgreSQL source. The 64-bit PostgreSQL installer does not currently include libintl.h.
  • Obtain the source for the mysql_fdw foreign data wrapper from EnterpriseDB.
  • Install MySQL Connector C. This example uses an installation of MySQL Connector C 6.1.

Configure a Project

After you have obtained the necessary software and source code, you are ready to compile the extension with Visual Studio. Follow the steps below to create a project using the mysql_fdw source:

  1. In Visual Studio, create a new empty C++ project.
  2. In Solution Explorer, right-click Source Files and click Add -> Existing Item. In the file explorer, select all of the .c and .h files from the mysql_fdw source.

Follow the steps below to configure your project:

  1. If you are building for a 64-bit system, click Build -> Configuration Manager and in Active Solution Platform select x64.
  2. Right-click your project and click Properties.
  3. In the Configuration menu, select All Configurations.
  4. In Configuration Properties -> General -> Configuration Type, select Dynamic Library.
  5. In Configuration Properties -> C/C++ -> Code Generation -> Enable C++ Exceptions, select No.
  6. In Configuration Properties -> C/C++ -> Advanced -> Compile As, select Compile as C Code.
  7. In Linker -> Manifest File -> Generate Manifest, select No.

Follow the steps below to add the required dependencies:

  1. In Linker -> Input -> Additional Dependencies, select Edit and enter the following: postgres.lib libmysql.lib WS2_32.lib Secur32.lib Additionally, ensure that Inherit From Parent or Project Defaults is checked.
  2. In Linker -> General -> Additional Library Directories, select Edit and add the path to the lib folder in your PostgreSQL installation.
  3. In Linker -> General -> Link Library Dependencies, select No.
  4. To complete the configuration of your project, add the necessary includes: In C/C++ -> General -> Additional Include Directories, add the following folders in the following order: MyMySQLConnectorCInstallation\include MyPostgreSQLInstallation\MyPostgreSQLVersion\include\server\port\win32_msvc MyPostgreSQLInstallation\MyPostgreSQLVersion\include\server\port\win32 MyPostgreSQLInstallation\MyPostgreSQLVersion\include\server MyPostgreSQLInstallation\MyPostgreSQLVersion\include

Configure mysql_fdw for Windows

After setting up a project, make the following changes to build mysql_fdw in Visual Studio:

  1. In mysql_fdw.c, add the following defines: #define dlsym(lib, name) (void*)GetProcAddress((HMODULE)lib, name) #define dlopen(libname, unused) LoadLibraryEx(libname, NULL, 0)
  2. In the mysql_load_library definition, delete the following line: mysql_dll_handle = dlopen(_MYSQL_LIBNAME, RTLD_LAZY | RTLD_DEEPBIND);
  3. Add the following line in the mysql_load_library definition to replace the assignment of mysql_dll_handle for a Windows build: mysql_dll_handle = dlopen("libmysql.dll", 0);
  4. Prepend the call to the mysql_fdw_handler function with the __declspec(dllexport) keyword to export the function from the DLL: __declspec(dllexport) extern Datum mysql_fdw_handler(PG_FUNCTION_ARGS);
  5. In option.c, prepend the declaration of the mysql_fdw_validator function with the __declspec(dllexport) keyword to export the function from the DLL: __declspec(dllexport) extern Datum mysql_fdw_validator(PG_FUNCTION_ARGS);

You can now select the Release configuration and build.

Install the Extension

After you have compiled the DLL, follow the steps below to install the extension:

  1. Add the path to the lib folder for MySQL Connector C to the PATH environment variable of the machine running PostgreSQL.
  2. Copy the DLL from the RElease folder for your project into the lib subfolder of your PostgreSQL installation.
  3. In the folder containing the mysql_fdw csource files, copy myswl_fdw--1.0.sql and mysql_fdw.control into the extension folder under the share folder of your PostgreSQL installation. For example: C:\Program Files\PostgreSQL\9.4\share\extension.

Query FedEx Data as a PostgreSQL Database

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

  1. Log into your PostgreSQL database. For example: C:\> psql -U postgres
  2. Load the extension for the database: postgres=#CREATE EXTENSION mysql_fdw;
  3. Create a server object for FedEx data: postgres=# CREATE SERVER FedEx FOREIGN DATA WRAPPER mysql_fdw OPTIONS (host '127.0.0.1', port '3306');
  4. Create a user mapping for the username and password of a user known to the MySQL remoting service. Below are the credentials for the user in the sample configuration of the service: postgres=# CREATE USER MAPPING for postgres SERVER FedEx OPTIONS (username 'admin', password 'test');
  5. Create the local schema: postgres=# CREATE SCHEMA FedEx_db;
  6. Import all the tables in the FedEx database you defined: postgres=# IMPORT FOREIGN SCHEMA "CData FedEx Sys" FROM SERVER FedEx INTO FedEx_db;

You can now execute read/write commands to FedEx:

postgres=# SELECT * FROM FedEx_db."senders";