RediSearch: Node.js Sample

Coding the application

1- Create the Project

Follow the npm steps

$ npm init

2- Add Dependencies

Add the dependencies:

• Express
• Node RediSearch

$ npm install express redis redis-redisearch --save

3- Create REST API Routes

Create the server.js file and add the following code

const express = require('express')
const app = express()
const port = 3003


app.get('/api/1.0/', (req, res) => {
    res.json({"status" : "started"});
  })


app.get('/', (req, res) => {
  res.send('RediSearch Node REST Server Started')
})

app.listen(port, () => {
  console.log(`RediSearch Node listening at http://localhost:${port}`)
})

This will be the base of the various API endpoints.

4- Create a NodeSearchService

In this sample application all the RediSearch interactions will be done in NodeSearchService.js file.

Running the application in Docker

You can run build and run the application from docker using the following commands:

Build

> docker build -t redis/search-backend-node  .

This command will create a new image and build the Node.js project into it.

Run

> docker run --rm  \
     --env "REDIS_URL=redis://host.docker.internal:6379" \
     --env "REDIS_INDEX=idx:movie" \
     --name "redisearch-backend-node"\
     -p 8086:8086 redis/redis-stack:latest

Running the application locally

To run the application on your local machine:

> npm install
> npm start

Accessing the API

You can now access the REST Search service using the following URL:

• http://localhost:8086/api/1.0/movies/search?q=man&limit=10&offset=20