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Write a Simple Go Application to work with Airtable Data on Linux

Use the CData ODBC Driver for Airtable and unixODBC to create a simple Go app with live connectivity to Airtable data.

Go is an open source programming language that enables you to easily build software on Linux/UNIX machines. When Go is paired with the ODBC Driver for Airtable and unixODBC you are able write applications with connectivity to live Airtable data. This article will walk you through the process of installing the ODBC Driver for Airtable, configuring a connection using the unixODBC Driver Manager, and creating a simple Go application to work with Airtable data.

Using the CData ODBC Drivers on a Unix/Linux Machine

The CData ODBC Drivers are supported in various Red Hat-based and Debian-based systems, including Ubuntu, Debian, RHEL, CentOS, and Fedora. There are also several libraries and packages that are required, many of which may be installed by default, depending on your system. For more information on the supported versions of Linux operating systems and the required libraries, please refer to the "Getting Started" section in help documentation (installed and found online).

Installing the Driver Manager

Before installing the driver, you need to be sure that your system has a driver manager. For this article, you will use unixODBC, a free and open source ODBC driver manager that is widely supported.

For Debian-based systems like Ubuntu, you can install unixODBC with the APT package manager:

$ apt-get install unixODBC unixODBC-dev

For systems based on Red Hat Linux, you can install unixODBC with yum or dnf:

$ yum install unixODBC unixODBC-devel

The unixODBC driver manager reads information about drivers from an odbcinst.ini file and about data sources from an odbc.ini file. You can determine the location of the configuration files on your system by entering the following command into a terminal:

$ odbcinst -j

The output of the command will display the locations of the configuration files for ODBC data sources and registered ODBC drivers. User data sources can only be accessed by the user account whose home folder the odbc.ini is located in. System data sources can be accessed by all users. Below is an example of the output of this command:

DRIVERS............: /etc/odbcinst.ini SYSTEM DATA SOURCES: /etc/odbc.ini FILE DATA SOURCES..: /etc/ODBCDataSources USER DATA SOURCES..: /home/myuser/.odbc.ini SQLULEN Size.......: 8 SQLLEN Size........: 8 SQLSETPOSIROW Size.: 8

Installing the Driver

You can download the driver in standard package formats: the Debian .deb package format or the .rpm file format. Once you have downloaded the file, you can install the driver from the terminal.

The driver installer registers the driver with unixODBC and creates a system DSN, which can be used later in any tools or applications that support ODBC connectivity.

For Debian-based systems like Ubuntu, run the following command with sudo or as root: $ dpkg -i /path/to/package.deb

For systems that support .rpms, run the following command with sudo or as root: $ rpm -i /path/to/package.rpm

Once the driver is installed, you can list the registered drivers and defined data sources using the unixODBC driver manager:

List the Registered Driver(s)

$ odbcinst -q -d CData ODBC Driver for Airtable ...

List the Defined Data Source(s)

$ odbcinst -q -s CData Airtable Source ...

To use the CData ODBC Driver for Airtable with unixODBC, you need to ensure that the driver is configured to use UTF-16. To do so, edit the INI file for the driver (cdata.odbc.airtable.ini), which can be found in the lib folder in the installation location (typically /opt/cdata/cdata-odbc-driver-for-airtable), as follows:

cdata.odbc.airtable.ini

... [Driver] DriverManagerEncoding = UTF-16

Modifying the DSN

When the driver is installed, a system DSN should be predefined. You can modify the DSN by editing the system data sources file (/etc/odbc.ini) and defining the required connection properties. Additionally, you can create user-specific DSNs that will not require root access to modify in $HOME/.odbc.ini.

APIKey, BaseId and TableNames parameters are required to connect to Airtable. ViewNames is an optional parameter where views of the tables may be specified.

  • APIKey : API Key of your account. To obtain this value, after logging in go to Account. In API section click Generate API key.
  • BaseId : Id of your base. To obtain this value, it is in the same section as the APIKey. Click on Airtable API, or navigate to https://airtable.com/api and select a base. In the introduction section you can find "The ID of this base is appxxN2ftedc0nEG7."
  • TableNames : A comma separated list of table names for the selected base. These are the same names of tables as found in the UI.
  • ViewNames : A comma separated list of views in the format of (table.view) names. These are the same names of the views as found in the UI.

/etc/odbc.ini or $HOME/.odbc.ini

[CData Airtable Source] Driver = CData ODBC Driver for Airtable Description = My Description APIKey = keymz3adb53RqsU BaseId = appxxN2fe34r3rjdG7 TableNames = TableA,... ViewNames = TableA.ViewA,...

For specific information on using these configuration files, please refer to the help documentation (installed and found online).

Creating a Simple Go App for Airtable Data

With the Driver Manager installed and the DSN configured, you are ready to create a simple Go application to work with your Airtable data. To start, install a Go driver for ODBC databases. While there are several options available, this article will use the odbc driver found at https://github.com/alexbrainman/odbc.

Installing odbc on Linux

To install the odbc driver for Go, you will need to first ensure that you define the GOPATH environment variable:

export GOPATH=$HOME/golang/go

Once GOPATH is defined, you are ready to install the Go driver for ODBC databases:

$ go get github.com/alexbrainman/odbc

Now you are ready to create and execute a simple Go application.

Sample Go Application

The sample application issues a simple SQL SELECT query for Airtable data and displays the results. Create the directory $GOPATH/src/cdata-odbc-airtable and create a new Go source file, copying the source code from below.

cdata-odbc-airtable.go

package main import ( _ "github.com/alexbrainman/odbc" "database/sql" "log" "fmt" ) func main() { db, err := sql.Open("odbc", "DSN=CData Airtable Source") if err != nil { log.Fatal(err) } var ( id string column1 string ) rows, err := db.Query("SELECT Id, Column1 FROM SampleTable_1 WHERE Column1 = ?", "Value1") if err != nil { log.Fatal(err) } defer rows.Close() for rows.Next() { err := rows.Scan(&id, &column1) if err != nil { log.Fatal(err) } fmt.Println(id, column1) } err = rows.Err() if err != nil { log.Fatal(err) } defer db.Close() }

In the terminal, navigate to the Go application directory and build the application:

$ go build

After the application builds, you will be able to execute the application, displaying your Airtable data:

$ ./cdata-odbc-airtable

At this point, you have a simple Go application for working with Airtable data. From here, you can easily expand the application, adding deeper read functionality through familiar SQL queries.