Redis Document/Search - Nodejs Examples

Summary

This post will provide some snippets from Redis Query Workshop available on GitHub.  That workshop covers parallel examples in CLI, Python, Nodejs, Java, and C#.  This post will focus on Nodejs examples.

Basic JSON

	await client.json.set('ex3:3', '$', {"obj1": {"str1": "val1", "num2": 2}});
	await client.json.set('ex3:3', '$.obj1.num2', 3);
	result = await client.json.get('ex3:3');
	console.log(result);

view raw workshop-javascript-lab2-code.js hosted with ❤ by GitHub

{ obj1: { str1: 'val1', num2: 3 } }

view raw workshop-javascript-lab2-result.txt hosted with ❤ by GitHub

Basic Search

	await client.ft.create('idx1', {
	'$.id': {
	type: SchemaFieldTypes.NUMERIC,
	AS: 'id'
	},
	'$.gender': {
	type: SchemaFieldTypes.TAG,
	AS: 'gender'
	},
	'$.season.*': {
	type: SchemaFieldTypes.TAG,
	AS: 'season'
	},
	'$.description': {
	type: SchemaFieldTypes.TEXT,
	AS: 'description'
	},
	'$.price': {
	type: SchemaFieldTypes.NUMERIC,
	AS: 'price'
	},
	'$.city': {
	type: SchemaFieldTypes.TEXT,
	AS: 'city'
	},
	'$.coords': {
	type: SchemaFieldTypes.GEO,
	AS: 'coords'
	}
	}, { ON: 'JSON', PREFIX: 'product:'});
	await client.json.set('product:15970', '$', {"id": 15970, "gender": "Men", "season":["Fall", "Winter"], "description": "Turtle Check Men Navy Blue Shirt", "price": 34.95, "city": "Boston", "coords": "-71.057083, 42.361145"});
	await client.json.set('product:59263', '$', {"id": 59263, "gender": "Women", "season":["Fall", "Winter", "Spring", "Summer"],"description": "Titan Women Silver Watch", "price": 129.99, "city": "Dallas", "coords": "-96.808891, 32.779167"});
	await client.json.set('product:46885', '$', {"id": 46885, "gender": "Boys", "season":["Fall"], "description": "Ben 10 Boys Navy Blue Slippers", "price": 45.99, "city": "Denver", "coords": "-104.991531, 39.742043"});
	result = await client.ft.search('idx1', '@price:[40,130]');
	console.log(JSON.stringify(result, null, 4));

view raw workshop-javascript-lab3-code.js hosted with ❤ by GitHub

	{
	"total": 2,
	"documents": [
	{
	"id": "product:46885",
	"value": {
	"id": 46885,
	"gender": "Boys",
	"season": [
	"Fall"
	],
	"description": "Ben 10 Boys Navy Blue Slippers",
	"price": 45.99,
	"city": "Denver",
	"coords": "-104.991531, 39.742043"
	}
	},
	{
	"id": "product:59263",
	"value": {
	"id": 59263,
	"gender": "Women",
	"season": [
	"Fall",
	"Winter",
	"Spring",
	"Summer"
	],
	"description": "Titan Women Silver Watch",
	"price": 129.99,
	"city": "Dallas",
	"coords": "-96.808891, 32.779167"
	}
	}
	]
	}

view raw workshop-javascript-lab3-result.txt hosted with ❤ by GitHub

Advanced JSON

	await client.json.set('warehouse:1', '$', {
	"city": "Boston",
	"location": "42.361145, -71.057083",
	"inventory":[{
	"id": 15970,
	"gender": "Men",
	"season":["Fall", "Winter"],
	"description": "Turtle Check Men Navy Blue Shirt",
	"price": 34.95
	},{
	"id": 59263,
	"gender": "Women",
	"season": ["Fall", "Winter", "Spring", "Summer"],
	"description": "Titan Women Silver Watch",
	"price": 129.99
	},{
	"id": 46885,
	"gender": "Boys",
	"season": ["Fall"],
	"description":
	"Ben 10 Boys Navy Blue Slippers",
	"price": 45.99
	}]});
	result = await client.json.get('warehouse:1', { path: '$.inventory[?(@.description=="Turtle Check Men Navy Blue Shirt")]' });
	console.log(JSON.stringify(result, null, 4));

view raw workshop-javascript-lab4-code.js hosted with ❤ by GitHub

	[
	{
	"id": 15970,
	"gender": "Men",
	"season": [
	"Fall",
	"Winter"
	],
	"description": "Turtle Check Men Navy Blue Shirt",
	"price": 34.95
	}
	]

view raw workshop-javascript-lab4-result.txt hosted with ❤ by GitHub

Advanced Search

	await client.ft.create('wh_idx', {
	'$.city': {
	type: SchemaFieldTypes.TEXT,
	AS: 'city'
	}
	}, { ON: 'JSON', PREFIX: 'warehouse:'});
	await client.json.set('warehouse:1', '$', {
	"city": "Boston",
	"location": "-71.057083, 42.361145",
	"inventory":[
	{
	"id": 15970,
	"gender": "Men",
	"season":["Fall", "Winter"],
	"description": "Turtle Check Men Navy Blue Shirt",
	"price": 34.95
	},
	{
	"id": 59263,
	"gender": "Women",
	"season": ["Fall", "Winter", "Spring", "Summer"],
	"description": "Titan Women Silver Watch",
	"price": 129.99
	},
	{
	"id": 46885,
	"gender": "Boys",
	"season": ["Fall"],
	"description": "Ben 10 Boys Navy Blue Slippers",
	"price": 45.99
	}
	]});
	await client.json.set('warehouse:2', '$', {
	"city": "Dallas",
	"location": "-96.808891, 32.779167",
	"inventory": [
	{
	"id": 51919,
	"gender": "Women",
	"season":["Summer"],
	"description": "Nyk Black Horado Handbag",
	"price": 52.49
	},
	{
	"id": 4602,
	"gender": "Unisex",
	"season": ["Fall", "Winter"],
	"description": "Wildcraft Red Trailblazer Backpack",
	"price": 50.99
	},
	{
	"id": 37561,
	"gender": "Girls",
	"season": ["Spring", "Summer"],
	"description": "Madagascar3 Infant Pink Snapsuit Romper",
	"price": 23.95
	}
	]});
	result = await client.ft.search('wh_idx', '@city:(Dallas)', {
	RETURN: ['$.inventory[?(@.gender=="Women" || @.gender=="Girls")]'],
	DIALECT: 3
	});
	console.log(JSON.stringify(result, null, 4));

view raw workshop-javascript-lab5-code.js hosted with ❤ by GitHub

	{
	"total": 1,
	"documents": [
	{
	"id": "warehouse:2",
	"value": {
	"$.inventory[?(@.gender==\"Women\" || @.gender==\"Girls\")]": "[{\"id\":51919,\"gender\":\"Women\",\"season\":[\"Summer\"],\"description\":\"Nyk Black Horado Handbag\",\"price\":52.49},{\"id\":37561,\"gender\":\"Girls\",\"season\":[\"Spring\",\"Summer\"],\"description\":\"Madagascar3 Infant Pink Snapsuit Romper\",\"price\":23.95}]"
	}
	}
	]
	}

view raw workshop-javascript-lab5-result.txt hosted with ❤ by GitHub

Source

https://github.com/Redislabs-Solution-Architects/Specialist-Solution-Workshops/tree/main/Real-Time-Query-Workshop/javascript

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