feat: add lambda invocation form preset

Author: FilipPyrek

presets/library/lambda-invocation-form/preset.mjs

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+import { extend, extract } from '../../../src/index.js'
+
+export default [extend('presets/base/typescript-cdk'), extract()]

presets/library/lambda-invocation-form/templates/README.md

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+<p align="center">
+  <a href="https://buttonize.io">
+    <img width="350" alt="Buttonize.io" src="https://user-images.githubusercontent.com/6282843/212024942-9fd50774-ea26-48ba-b2cf-ca2584498c9a.png">
+  </a>
+</p>
+
+---
+
+## Lambda Invocation Form
+
+[![Lambda Invocation Form](https://github.com/buttonize/create-buttonize/assets/6282843/97f71c7d-6a04-431d-bc0f-185019fbc056)](https://buttonize.io/library/lambda-invocation-form)
+
+Learn more about Lambda Invocation Form Construct [here](https://buttonize.io/library/lambda-invocation-form).
+
+## CDK
+
+The `cdk.json` file tells the CDK Toolkit how to execute your app.
+
+### Useful commands
+
+* `npm run build`   compile typescript to js
+* `npm run watch`   watch for changes and compile
+* `npx cdk deploy`  deploy this stack to your default AWS account/region
+* `npx cdk diff`    compare deployed stack with current state
+* `npx cdk synth`   emits the synthesized CloudFormation template

presets/library/lambda-invocation-form/templates/lib/example-stack.ts

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+import * as cdk from 'aws-cdk-lib'
+import { NodejsFunction } from 'aws-cdk-lib/aws-lambda-nodejs'
+import { Buttonize, Input } from 'buttonize/cdk'
+import { LambdaInvocationForm } from 'buttonize/library'
+import { Construct } from 'constructs'
+
+export class ExampleStack extends cdk.Stack {
+	constructor(scope: Construct, id: string, props?: cdk.StackProps) {
+		super(scope, id, props)
+
+		Buttonize.init(this, {
+			apiKey: '@@apiKey'
+		})
+
+		const discountGenerator = new NodejsFunction(this, 'DiscountGenerator', {
+			entry: 'src/discount-generator.ts'
+		})
+
+		new LambdaInvocationForm(this, 'DiscountGeneratorForm', {
+			lambda: discountGenerator,
+			name: 'Discount code generator',
+			description: 'Generate discount for unhappy customers',
+			fields: [
+				Input.text({
+					id: 'email',
+					label: `Customer's email address`,
+					placeholder: 'example@domain.com'
+				}),
+				Input.select({
+					id: 'discount',
+					label: 'Discount value',
+					options: [
+						{ label: '30%', value: 30 },
+						{ label: '60%', value: 60 }
+					]
+				})
+			],
+			instructions: `Sometimes there is bug in our e-commerce system and we need to offer our customers a discount to keep them **happy**.
+
+This tool generates a discount code for the customer and displays it on the following page.`
+		})
+	}
+}

presets/library/lambda-invocation-form/templates/src/discount-generator.ts

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+interface FormEvent {
+	email: string
+	discount: {
+		label: string
+		value: number
+	}
+}
+export const handler = async (event: FormEvent) => {
+	console.log(`Generating discount of value ${event.discount.value} for customer ${event.email}`)
+
+	return {
+		discountValuePercent: event.discount.value,
+		discountCode: `${Math.random()}`.split('.')[1]
+	}
+}