Add Redis.io code examples

- Add set & get example
- Use bash script to test doc tests
- Add package.json to doctests
- Add search-quickstart

.github/workflows/doctests.yml

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+name: Documentation Tests
+
+on:
+  push:
+  pull_request:
+
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  doctests:
+    runs-on: ubuntu-latest
+    services:
+      redis-stack:
+        image: redis/redis-stack-server:latest
+        options: >-
+          --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5
+        ports:
+          - 6379:6379
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v2.3.0
+        with:
+          node-version: 18
+      - name: Install Packages
+        run: npm ci
+      - name: Build
+        run: npm run build-all
+      - run: |
+          sudo apt update
+          sudo apt install -y redis-tools
+      - name: install doctest deps
+        run: |
+          npm install
+        working-directory: doctests
+      - name: run tests
+        run: |
+          sh run_examples.sh
+        working-directory: doctests

doctests/README.md

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+# Command examples for redis.io
+
+## Setup
+
+To set up the examples folder so that you can run an example / develop one of your own:
+
+```
+$ git clone https://github.com/redis/node-redis.git
+$ cd node-redis
+$ npm install -ws && npm run build-all
+$ cd doctests
+$ npm install
+```
+
+## How to add examples
+
+Create regular node file in the current folder with meaningful name. It makes sense prefix example files with
+command category (e.g. string, set, list, hash, etc) to make navigation in the folder easier.
+
+### Special markup
+
+See https://github.com/redis-stack/redis-stack-website#readme for more details.
+
+## How to test the examples
+
+Just include necessary assertions in the example file and run
+```bash
+sh doctests/run_examples.sh
+```
+to test all examples in the current folder.
+
+See `tests.js` for more details.

doctests/package.json

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+{
+  "name": "node-redis-doctests",
+  "version": "1.0.0",
+  "description": "Code examples for redis.io",
+  "main": "index.js",
+  "private": true,
+  "type": "module",
+  "dependencies": {
+    "redis": "../"
+  }
+}
+

doctests/run_examples.sh

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+#!/bin/sh
+
+
+basepath=`readlink -f $1`
+if [ $? -ne 0 ]; then
+basepath=`readlink -f $(dirname $0)`
+fi
+echo "No path specified, using ${basepath}"
+
+set -e
+cd ${basepath}
+for i in `ls ${basepath}/*.js`; do
+    redis-cli flushdb
+    node $i
+done

doctests/search-quickstart.js

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+// EXAMPLE: search_quickstart
+// REMOVE_START
+import assert from "assert";
+// REMOVE_END
+// HIDE_START
+import {AggregateGroupByReducers, AggregateSteps, createClient, SchemaFieldTypes} from 'redis';
+// HIDE_END
+// STEP_START connect
+const client = createClient();
+client.on('error', err => console.log('Redis Client Error', err));
+
+await client.connect();
+// STEP_END
+
+// STEP_START data_sample
+let bicycle1 = {
+    "brand": "Diaz Ltd",
+    "model": "Dealer Sl",
+    "price": 7315.58,
+    "description": "The Diaz Ltd Dealer Sl is a reliable choice" +
+        " for urban cycling. The Diaz Ltd Dealer Sl " +
+        "is a comfortable choice for urban cycling.",
+    "condition": "used",
+}
+// STEP_END
+let bicycles = [
+    bicycle1,
+    {
+        "brand": "Bridges Group",
+        "model": "Project Pro",
+        "price": 3610.82,
+        "description": "This mountain bike is perfect for mountain biking. The Bridges Group Project Pro is a responsive choice for mountain biking.",
+        "condition": "used",
+    },
+    {
+        "brand": "Vega, Cole and Miller",
+        "model": "Group Advanced",
+        "price": 8961.42,
+        "description": "The Vega, Cole and Miller Group Advanced provides a excellent ride. With its fast carbon frame and 24 gears, this bicycle is perfect for any terrain.",
+        "condition": "used",
+    },
+    {
+        "brand": "Powell-Montgomery",
+        "model": "Angle Race",
+        "price": 4050.27,
+        "description": "The Powell-Montgomery Angle Race is a smooth choice for road cycling. The Powell-Montgomery Angle Race provides a durable ride.",
+        "condition": "used",
+    },
+    {
+        "brand": "Gill-Lewis",
+        "model": "Action Evo",
+        "price": 283.68,
+        "description": "The Gill-Lewis Action Evo provides a smooth ride. The Gill-Lewis Action Evo provides a excellent ride.",
+        "condition": "used",
+    },
+    {
+        "brand": "Rodriguez-Guerrero",
+        "model": "Drama Comp",
+        "price": 4462.55,
+        "description": "This kids bike is perfect for young riders. With its excellent aluminum frame and 12 gears, this bicycle is perfect for any terrain.",
+        "condition": "new",
+    },
+    {
+        "brand": "Moore PLC",
+        "model": "Award Race",
+        "price": 3790.76,
+        "description": "This olive folding bike features a carbon frame and 27.5 inch wheels. This folding bike is perfect for compact storage and transportation.",
+        "condition": "new",
+    },
+    {
+        "brand": "Hall, Haley and Hayes",
+        "model": "Weekend Plus",
+        "price": 2008.4,
+        "description": "The Hall, Haley and Hayes Weekend Plus provides a comfortable ride. This blue kids bike features a steel frame and 29.0 inch wheels.",
+        "condition": "new",
+    },
+    {
+        "brand": "Peck-Carson",
+        "model": "Sun Hybrid",
+        "price": 9874.95,
+        "description": "With its comfortable aluminum frame and 25 gears, this bicycle is perfect for any terrain. The Peck-Carson Sun Hybrid provides a comfortable ride.",
+        "condition": "new",
+    },
+    {
+        "brand": "Fowler Ltd",
+        "model": "Weekend Trail",
+        "price": 3833.71,
+        "description": "The Fowler Ltd Letter Trail is a comfortable choice for transporting cargo. This cargo bike is perfect for transporting cargo.",
+        "condition": "refurbished",
+    },
+]
+// STEP_START define_index
+let schema = {
+    '$.brand': {
+        type: SchemaFieldTypes.TEXT,
+        sortable: true,
+        AS: 'brand'
+    },
+    '$.model': {
+        type: SchemaFieldTypes.TEXT,
+        AS: 'model'
+    },
+    '$.description': {
+        type: SchemaFieldTypes.TEXT,
+        AS: 'description'
+    },
+    '$.price': {
+        type: SchemaFieldTypes.NUMERIC,
+        AS: 'price'
+    },
+    '$.condition': {
+        type: SchemaFieldTypes.TAG,
+        AS: 'condition'
+    },
+}
+// STEP_END
+
+// STEP_START create_index
+try {
+    await client.ft.create('idx:bicycle', schema, {
+        ON: 'JSON',
+        PREFIX: 'bicycle:'
+    });
+} catch (e) {
+    if (e.message === 'Index already exists') {
+        console.log('Index exists already, skipped creation.');
+    } else {
+        // Something went wrong, perhaps RediSearch isn't installed...
+        console.error(e);
+        process.exit(1);
+    }
+}
+// STEP_END
+
+// STEP_START add_documents
+for (let i = 0; i < bicycles.length; i++) {
+    await client.json.set(`bicycle:${i}`, '$', bicycles[i]);
+}
+// STEP_END
+
+// STEP_START query_single_term_and_num_range
+let result = await client.ft.search(
+    'idx:bicycle',
+    'folding @price:[1000 4000]'
+);
+
+console.log(JSON.stringify(result, null, 2));
+/*
+{
+  "total": 1,
+  "documents": [
+    {
+      "id": "bicycle:6",
+      "value": {
+        "brand": "Moore PLC",
+        "model": "Award Race",
+        "price": 3790.76,
+        "description": "This olive folding bike features a carbon frame and 27.5 inch wheels. This folding bike is perfect for compact storage and transportation.",
+        "condition": "new"
+      }
+    }
+  ]
+}
+*/
+// STEP_END
+// REMOVE_START
+assert.equal(result.documents[0].id, "bicycle:6");
+// REMOVE_END
+
+// STEP_START query_single_term_limit_fields
+result = await client.ft.search(
+    'idx:bicycle',
+    'cargo',
+    {
+        RETURN: ['$.price']
+    }
+);
+
+console.log(JSON.stringify(result, null, 2));
+/*
+{
+  "total": 1,
+  "documents": [
+    {
+      "id": "bicycle:9",
+      "value": {
+        "$.price": "3833.71"
+      }
+    }
+  ]
+}
+ */
+// STEP_END
+// REMOVE_START
+assert.equal(result.documents[0].id, "bicycle:9");
+// REMOVE_END
+
+// STEP_START simple_aggregation
+result = await client.ft.aggregate('idx:bicycle', '*', {
+    STEPS: [
+        {
+            type: AggregateSteps.GROUPBY,
+            properties: ['@condition'],
+            REDUCE: [
+                {
+                    type: AggregateGroupByReducers.COUNT,
+                    AS: 'count'
+                }
+            ]
+        }
+    ]
+})
+
+console.log(JSON.stringify(result, null, 2));
+/*
+{
+  "total": 3,
+  "results": [
+    {
+      "condition": "refurbished",
+      "count": "1"
+    },
+    {
+      "condition": "used",
+      "count": "5"
+    },
+    {
+      "condition": "new",
+      "count": "4"
+    }
+  ]
+}
+ */
+// STEP_END
+// REMOVE_START
+assert.equal(result.total, 3);
+// REMOVE_END
+
+await client.quit();

doctests/string-set-get-example.js

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+// EXAMPLE: set_and_get
+// REMOVE_START
+import assert from "assert";
+// REMOVE_END
+
+// HIDE_START
+import { createClient } from 'redis';
+
+const client = createClient();
+
+client.on('error', err => console.log('Redis Client Error', err));
+
+await client.connect();
+
+// HIDE_END
+await client.set('bike:1', 'Process 134');
+const value = await client.get('bike:1');
+console.log(value);
+// returns 'Process 134'
+//REMOVE_START
+assert.equal(value, 'Process 134');
+//REMOVE_END
+
+// HIDE_START
+await client.quit();
+// HIDE_END