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The Sage 300 ODBC Driver is a powerful tool that allows you to connect with live data from Sage 300, directly from any applications that support ODBC connectivity.

Access Sage 300 data like you would a database - read, write, and update Sage 300 Invoices, Receipts, Refunds, etc. through a standard ODBC Driver interface.

Write a Simple Go Application to work with Sage 300 Data on Linux

Use CData ODBC drivers and unixODBC to create a simple Go app with live connectivity to Sage 300 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 Sage 300 and unixODBC you are able write applications with connectivity to live Sage 300 data. This article will walk you through the process of installing the ODBC Driver for Sage 300, configuring a connection using the unixODBC Driver Manager, and creating a simple Go application to work with Sage 300 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 Sage 300
...

List the Defined Data Source(s)


$ odbcinst -q -s
CData Sage300 Source
...

To use the CData ODBC Driver for Sage 300 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.sage300.ini), which can be found in the lib folder in the installation location (typically /opt/cdata/cdata-odbc-driver-for-sage300), as follows:

cdata.odbc.sage300.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.

Sage 300 requires some initial setup in order to communicate over the Sage 300 Web API.

Set up the security groups for the Sage 300 user. Give the Sage 300 user access to the option under Security Groups (per each module required).
Edit both web.config files in the /Online/Web and /Online/WebApi folders; change the key AllowWebApiAccessForAdmin to true. Restart the webAPI app-pool for the settings to take.
Once the user access is configured, click https://server/Sage300WebApi/ to ensure access to the web API.

Authenticate to Sage 300 using Basic authentication.

Connect Using Basic Authentication

You must provide values for the following properties to successfully authenticate to Sage 300. Note that the provider reuses the session opened by Sage 300 using cookies. This means that your credentials are used only on the first request to open the session. After that, cookies returned from Sage 300 are used for authentication.

Url: Set this to the url of the server hosting Sage 300. Construct a URL for the Sage 300 Web API as follows: {protocol}://{host-application-path}/v{version}/{tenant}/ For example, http://localhost/Sage300WebApi/v1.0/-/.
User: Set this to the username of your account.
Password: Set this to the password of your account.

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


[CData Sage300 Source]
Driver = CData ODBC Driver for Sage 300
Description = My Description
User = SAMPLE
Password = password
URL = http://127.0.0.1/Sage300WebApi/v1/-/
Company = SAMINC

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

Creating a Simple Go App for Sage 300 Data

With the Driver Manager installed and the DSN configured, you are ready to create a simple Go application to work with your Sage 300 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 Sage 300 data and displays the results. Create the directory $GOPATH/src/cdata-odbc-sage300 and create a new Go source file, copying the source code from below.

cdata-odbc-sage300.go


package main

import (
  _ "github.com/alexbrainman/odbc"
  "database/sql"
  "log"
  "fmt"
)

func main() {
  db, err := sql.Open("odbc",
    "DSN=CData Sage300 Source")
  if err != nil {
    log.Fatal(err)
  }

  var (
    invoiceuniquifier string
    approvedlimit string
  )

  rows, err := db.Query("SELECT InvoiceUniquifier, ApprovedLimit FROM OEInvoices WHERE AllowPartialShipments = ?", "Yes")
  if err != nil {
    log.Fatal(err)
  }
  defer rows.Close()
  for rows.Next() {
    err := rows.Scan(&invoiceuniquifier, &approvedlimit)
    if err != nil {
      log.Fatal(err)
    }
    fmt.Println(invoiceuniquifier, approvedlimit)
  }
  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 Sage 300 data:


$ ./cdata-odbc-sage300

At this point, you have a simple Go application for working with Sage 300 data. From here, you can easily expand the application, adding deeper read functionality through familiar SQL queries.

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