Merge pull request #9 from BeyerleinDigital/5-create-function-generator

feat(generators): Implement add-function

Author: beyerleinf

packages/azure-functions/generators.json

@@ -7,6 +7,11 @@
       "factory": "./src/generators/create-project/generator",
       "schema": "./src/generators/create-project/schema.json",
       "description": "Generate an Azure Functions project."
+    },
+    "add-function": {
+      "factory": "./src/generators/add-function/generator",
+      "schema": "./src/generators/add-function/schema.json",
+      "description": "Add an Azure Function to an Azure Function project."
     }
   }
 }

packages/azure-functions/src/generators/add-function/files/http/function.json__tmpl__

@@ -0,0 +1,19 @@
+{
+  "bindings": [
+    {
+      "authLevel": "anonymous",
+      "type": "httpTrigger",
+      "direction": "in",
+      "name": "req",
+      "methods": [
+        "get"
+      ]
+    },
+    {
+      "type": "http",
+      "direction": "out",
+      "name": "res"
+    }
+  ],
+  "scriptFile": "<%= offsetFromRoot %>dist/apps/<%= projectName %>/<%= functionName %>/index.mjs"
+}

packages/azure-functions/src/generators/add-function/files/http/index.ts__tmpl__

@@ -0,0 +1,7 @@
+import { AzureFunction, Context, HttpRequest } from '@azure/functions';
+
+const httpTrigger: AzureFunction = async function (ctx: Context, req: HttpRequest): Promise<void> {
+  // do something awesome here
+};
+
+export default httpTrigger;

packages/azure-functions/src/generators/add-function/files/queue/function.json__tmpl__

@@ -0,0 +1,12 @@
+{
+  "bindings": [
+    {
+      "type": "queueTrigger",
+      "direction": "in",
+      "name": "myQueueItem",
+      "queueName": "myqueue-items",
+      "connection": "MyStorageConnectionAppSetting"
+    }
+  ],
+  "scriptFile": "<%= offsetFromRoot %>dist/apps/<%= projectName %>/<%= functionName %>/index.mjs"
+}

packages/azure-functions/src/generators/add-function/files/queue/index.ts__tmpl__

@@ -0,0 +1,7 @@
+import { AzureFunction, Context } from '@azure/functions';
+
+const queueTrigger: AzureFunction = async function (ctx: Context, queueMessage: string): Promise<void> {
+  // do something awesome here
+};
+
+export default queueTrigger;

packages/azure-functions/src/generators/add-function/files/timer/function.json__tmpl__

@@ -0,0 +1,11 @@
+{
+  "bindings": [
+    {
+      "schedule": "0 */5 * * * *",
+      "name": "timer",
+      "type": "timerTrigger",
+      "direction": "in"
+    }
+  ],
+  "scriptFile": "<%= offsetFromRoot %>dist/apps/<%= projectName %>/<%= functionName %>/index.mjs"
+}

packages/azure-functions/src/generators/add-function/files/timer/index.ts__tmpl__

@@ -0,0 +1,7 @@
+import { AzureFunction, Context } from '@azure/functions';
+
+const timerTrigger: AzureFunction = async function (ctx: Context, timer: unknown): Promise<void> {
+  // do something awesome here
+};
+
+export default timerTrigger;

packages/azure-functions/src/generators/add-function/generator.ts

@@ -0,0 +1,41 @@
+import {
+  generateFiles,
+  names,
+  offsetFromRoot,
+  readProjectConfiguration,
+  Tree,
+} from '@nrwl/devkit';
+import * as path from 'path';
+import { AddAzureFunctionGeneratorSchema, NormalizedSchema } from './schema';
+
+function normalizeOptions(
+  tree: Tree,
+  options: AddAzureFunctionGeneratorSchema
+): NormalizedSchema {
+  const projectRoot = readProjectConfiguration(tree, options.project).root;
+  const name = names(options.name).fileName;
+  const functionRoot = `${projectRoot}/${name}`;
+
+  return {
+    ...options,
+    name,
+    functionRoot,
+    type: options.type || 'http',
+  };
+}
+
+export default async function (
+  tree: Tree,
+  options: AddAzureFunctionGeneratorSchema
+) {
+  const { name, project, functionRoot, type } = normalizeOptions(tree, options);
+
+  const srcFolder = path.join(__dirname, 'files', type);
+
+  generateFiles(tree, srcFolder, functionRoot, {
+    tmpl: '',
+    projectName: project,
+    functionName: name,
+    offsetFromRoot: offsetFromRoot(functionRoot),
+  });
+}

packages/azure-functions/src/generators/add-function/schema.d.ts

@@ -0,0 +1,12 @@
+export type AzureFunctionType = 'http' | 'timer' | 'queue';
+
+export interface AddAzureFunctionGeneratorSchema {
+  name: string;
+  project: string;
+  type?: AzureFunctionType;
+}
+
+interface NormalizedSchema extends AddAzureFunctionGeneratorSchema {
+  type: AzureFunctionType;
+  functionRoot: string;
+}

packages/azure-functions/src/generators/add-function/schema.json

@@ -0,0 +1,27 @@
+{
+  "$schema": "http://json-schema.org/schema",
+  "cli": "nx",
+  "$id": "AddFunction",
+  "type": "object",
+  "properties": {
+    "name": {
+      "type": "string",
+      "description": "Function App name",
+      "$default": {
+        "$source": "argv",
+        "index": 0
+      }
+    },
+    "project": {
+      "type": "string",
+      "description": "Project"
+    },
+    "type": {
+      "type": "string",
+      "description": "Trigger type",
+      "enum": ["http", "timer", "queue"],
+      "$default": "http"
+    }
+  },
+  "required": ["project", "name"]
+}