add templates for redis

Signed-off-by: karthik2804 <[email protected]>

Author: karthik2804

templates/redis-js/content/.gitignore

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+node_modules
+dist
+target
+.spin/
+dist.js

templates/redis-js/content/knitwit.json

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+{
+    "version": 1,
+    "project": {
+        "worlds": [
+            "spin-redis"
+        ]
+    },
+    "packages": {}
+}

templates/redis-js/content/package.json

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+{
+    "name": "{{project-name | kebab_case}}",
+    "version": "1.0.0",
+    "description": "{{project-description}}",
+    "main": "index.js",
+    "scripts": {
+        "build": "npx webpack --mode=production && npx mkdirp target && npx j2w -i dist.js -d combined-wit -n combined -o target/{{project-name | kebab_case}}.wasm",
+        "test": "echo \"Error: no test specified\" && exit 1",
+        "postinstall": "knitwit"
+    },
+    "keywords": [],
+    "author": "",
+    "license": "ISC",
+    "devDependencies": {
+        "mkdirp": "^3.0.1",
+        "webpack": "^5.74.0",
+        "webpack-cli": "^4.10.0",
+        "@fermyon/knitwit": "https://github.com/fermyon/knitwit"
+    },
+    "dependencies": {
+        "@fermyon/spin-sdk": "^2.0.0"
+    }
+}

templates/redis-js/content/spin.toml

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+spin_manifest_version = 2
+
+[application]
+name = "{{project-name | kebab_case}}"
+version = "0.1.0"
+authors = ["{{authors}}"]
+description = "{{project-description}}"
+
+[application.trigger.redis]
+address = "{{redis-address}}"
+
+[[trigger.redis]]
+channel = "{{redis-channel}}"
+component = "{{project-name | kebab_case}}"
+
+[component.{{project-name | kebab_case}}]
+source = "target/{{project-name | kebab_case}}.wasm"
+exclude_files = ["**/node_modules"]
+[component.{{project-name | kebab_case}}.build]
+command = "npm run build"
+watch = ["src/**/*.ts", "package.json"]

templates/redis-js/content/src/index.js

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+import { RedisHandler } from "@fermyon/spin-sdk";
+
+const decoder = new TextDecoder();
+
+export class MyRedisHandler extends RedisHandler {
+    async handleMessage(msg) {
+        console.log("Received message:", decoder.decode(msg));
+    }
+}
+
+export const inboundRedis = new MyRedisHandler();

templates/redis-js/content/webpack.config.js

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+const path = require('path');
+const SpinSdkPlugin = require("@fermyon/spin-sdk/plugins/webpack")
+
+module.exports = {
+    entry: './src/index.js',
+    experiments: {
+        outputModule: true,
+    },
+    output: {
+        path: path.resolve(__dirname, './'),
+        filename: 'dist.js',
+        module: true,
+        library: {
+            type: "module",
+        }
+    },
+    plugins: [
+        new SpinSdkPlugin()
+    ],
+    optimization: {
+        minimize: false
+    },
+};

templates/redis-js/metadata/snippets/application-trigger.txt

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+[application.trigger.redis]
+address = "{{redis-address}}"

templates/redis-js/metadata/snippets/component.txt

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+[[trigger.redis]]
+channel = "{{redis-channel}}"
+component = "{{project-name | kebab_case}}"
+
+[component.{{project-name | kebab_case}}]
+source = "{{ output-path }}/target/{{project-name | kebab_case}}.wasm"
+allowed_outbound_hosts = []
+[component.{{project-name | kebab_case}}.build]
+command = "npm run build"
+workdir = "{{ output-path }}"

templates/redis-js/metadata/spin-template.toml

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+manifest_version = "1"
+id = "redis-js"
+description = "Redis message handler using JavaScript"
+tags = ["redis", "js"]
+
+[add_component]
+skip_files = ["spin.toml"]
+[add_component.snippets]
+component = "component.txt"
+application_trigger = "application-trigger.txt"
+[add_component.conditions.address_exists]
+condition = { manifest_entry_exists = "application.trigger.redis" }
+skip_parameters = ["redis-address"]
+skip_snippets = ["application_trigger"]
+
+[parameters]
+project-description = { type = "string",  prompt = "Description", default = "" }
+redis-address = { type = "string", prompt = "Redis address", default = "redis://localhost:6379" }
+redis-channel = { type = "string", prompt = "Redis channel" }

templates/redis-ts/content/.gitignore

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+node_modules
+dist
+target
+.spin/
+dist.js