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Get the Report →Query Redis Data through ODBC in Node.js
Use node-odbc to execute SQL queries against Redis data from Node.js.
Node.js is a JavaScript runtime environment that allows you to run JavaScript code outside of a browser. With the CData ODBC Driver for Redis, you can access live Redis data from Node.js apps and scripts. In this article, we walk through installing node-odbc and the required tools to create a simple Node.js app with access to live Redis data.
With built-in optimized data processing, the CData ODBC Driver offers unmatched performance for interacting with live Redis data in Node.js. When you issue complex SQL queries from Node.js to Redis, the driver pushes supported SQL operations, like filters and aggregations, directly to Redis and utilizes the embedded SQL engine to process unsupported operations client-side (often SQL functions and JOIN operations).
Connecting to Redis 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.
Set the following connection properties to connect to a Redis instance:
- Server: Set this to the name or address of the server your Redis instance is running on. You can specify the port in Port.
- Password: Set this to the password used to authenticate with a password-protected Redis instance , using the Redis AUTH command.
Set UseSSL to negotiate SSL/TLS encryption when you connect.
Building node-odbc
In order to connect to Redis through the CData ODBC Driver, you need to build node-odbc manually (after installing the required tools).
Installing the Required Tools
The following commands install the tools required to build node-odbc (note the -g parameter, which installs the tools globally).
npm i -g windows-build-tools npm i -g node-gyp
Building node-odbc
After installing the required tools, create a directory for the Node.js app and install odbc (which builds the binary for us to use in our Node.js script).
mkdir nodeodbc cd nodeodbc npm i -g node
Querying Redis from Node.js
With the ODBC Driver installed, a DSN Configured, and node-odbc built, we are ready to query live Redis data from a Node.js app. The sample code below connects to a specific DSN and queries the Customers table.
myscript.js
const odbc = require('odbc'); async function queryRedis() { const connection = await odbc.connect(`DSN=CData Redis Source`); const data = await connection.query('SELECT City, CompanyName FROM Customers'); console.log(data); } queryRedis();
Once you write the app, use node to execute the script:
node myscript.js
Download a free, 30-day trial of the CData ODBC Driver for Redis and start working with your live Redis data in Node.js. Reach out to our Support Team if you have any questions.