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

Access Xero data like you would a database - read, write, and update Xero Customers, Transactions, Invoices, Sales Receipts, etc. through a standard ODBC Driver interface.

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Analyze Xero Data in R


Create data visualizations and use high-performance statistical functions to analyze Xero data in Microsoft R Open.

Access Xero data with pure R script and standard SQL. You can use the CData ODBC Driver for Xero and the RODBC package to work with remote Xero data in R. By using the CData Driver, you are leveraging a driver written for industry-proven standards to access your data in the popular, open-source R language. This article shows how to use the driver to execute SQL queries to Xero data and visualize Xero data in R.

Install R

You can complement the driver's performance gains from multi-threading and managed code by running the multithreaded Microsoft R Open or by running R linked with the BLAS/LAPACK libraries. This article uses Microsoft R Open (MRO).

Connect to Xero as an ODBC Data Source

Information for connecting to Xero follows, along with different instructions for configuring a DSN in Windows and Linux environments.

To connect, set the Schema connection property in addition to any authentication values. Xero offers authentication for private applications, public applications, and partner applications. You will need to set the XeroAppAuthentication property to PUBLIC, PRIVATE, or PARTNER, depending on the type of application configured. To connect from a private application, you will additionally need to set the OAuthAccessToken, OAuthClientId, OAuthClientSecret, CertificateStoreType, CertificateStore, and CertificateStorePassword.

To connect from a public or partner application, you can use the embedded OAuthClientId, OAuthClientSecret, and CallbackURL, or you can register an app to obtain your own OAuth values.

See the "Getting Started" chapter of the help documentation for a guide to authenticating to Xero.

When you configure the DSN, you may also want to set the Max Rows connection property. This will limit the number of rows returned, which is especially helpful for improving performance when designing reports and visualizations.

Windows

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.

Linux

If you are installing the CData ODBC Driver for Xero in a Linux environment, the driver installation predefines a system DSN. You can modify the DSN by editing the system data sources file (/etc/odbc.ini) and defining the required connection properties.

/etc/odbc.ini

[CData Xero Source] Driver = CData ODBC Driver for Xero Description = My Description

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

Load the RODBC Package

To use the driver, download the RODBC package. In RStudio, click Tools -> Install Packages and enter RODBC in the Packages box.

After installing the RODBC package, the following line loads the package:

library(RODBC)

Note: This article uses RODBC version 1.3-12. Using Microsoft R Open, you can test with the same version, using the checkpoint capabilities of Microsoft's MRAN repository. The checkpoint command enables you to install packages from a snapshot of the CRAN repository, hosted on the MRAN repository. The snapshot taken Jan. 1, 2016 contains version 1.3-12.

library(checkpoint) checkpoint("2016-01-01")

Connect to Xero Data as an ODBC Data Source

You can connect to a DSN in R with the following line:

conn <- odbcConnect("CData Xero Source")

Schema Discovery

The driver models Xero APIs as relational tables, views, and stored procedures. Use the following line to retrieve the list of tables:

sqlTables(conn)

Execute SQL Queries

Use the sqlQuery function to execute any SQL query supported by the Xero API.

items <- sqlQuery(conn, "SELECT Name, SUM(QuantityOnHand) FROM Items GROUP BY Name", believeNRows=FALSE, rows_at_time=1)

You can view the results in a data viewer window with the following command:

View(items)

Plot Xero Data

You can now analyze Xero data with any of the data visualization packages available in the CRAN repository. You can create simple bar plots with the built-in bar plot function:

par(las=2,ps=10,mar=c(5,15,4,2)) barplot(items$QuantityOnHand, main="Xero Items", names.arg = items$Name, horiz=TRUE)