inital commit for email service

Author: qnton

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+.idea
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.dev.vars
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+.DS_Store

README.md

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+# Email Proxy

index.ts

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+import { Router, IRequest } from 'itty-router';
+
+// Constants
+const API_ENDPOINT = 'https://api.mailchannels.net/tx/v1/send';
+const CONTENT_TYPE_JSON = 'application/json';
+
+// Helper function to create a response
+const createResponse = (body: any, status: number) =>
+new Response(JSON.stringify(body), {
+headers: { 'content-type': CONTENT_TYPE_JSON },
+status,
+});
+
+// Curry function for handling errors
+const handleError = (status: number) => (message: string, request: IRequest) =>
+createResponse({ error: message }, status);
+
+// Middleware for authentication
+const authMiddleware = (token: string | null) => (request: IRequest) => {
+const requestToken = request.headers.get('Authorization');
+
+const unauthorizedError = handleError(401)('Unauthorized', request);
+const missingTokenError = handleError(401)('You must set the TOKEN environment variable.', request);
+
+return token
+? requestToken === token
+? null
+: unauthorizedError
+: missingTokenError;
+};
+
+// Service function to send email
+const sendEmail = async (email: any) => {
+const resp = await fetch(API_ENDPOINT, {
+method: 'POST',
+headers: {
+'content-type': CONTENT_TYPE_JSON,
+},
+body: JSON.stringify(email),
+});
+
+if (!resp.ok) {
+const errorMessage = `Error sending email: ${resp.status} ${resp.statusText}`;
+throw new Error(`${errorMessage}\n${await resp.text()}`);
+}
+};
+
+// Route handler for sending email
+const sendEmailHandler = async (request: IRequest, env: Env) => {
+try {
+const authError = authMiddleware(env.TOKEN)(request);
+if (authError) return authError;
+
+const email = await request.json();
+await sendEmail(email);
+
+return createResponse({
+status: 'SUCCESS',
+statusCode: 1000,
+message: 'NA',
+}, 200);
+} catch (error) {
+console.error(`Error processing request: ${error}`);
+return handleError(500)('Internal Server Error', request);
+}
+};
+
+// Create router
+const router = Router();
+
+// Define routes
+router.post('/api/email', sendEmailHandler);
+router.all('*', (request: IRequest) => handleError(404)('Not Found', request));
+
+// Export the router handler
+export default {
+fetch: router.handle,
+};

package.json

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+{
+ "name": "email",
+ "version": "0.0.0",
+ "private": true,
+ "scripts": {
+ "deploy": "wrangler publish",
+ "start": "wrangler dev"
+ },
+ "devDependencies": {
+ "@cloudflare/workers-types": "^4.20230419.0",
+ "itty-router": "^4.0.9",
+ "prettier": "^2.8.8",
+ "typescript": "^5.0.4"
+ },
+ "dependencies": {
+ "wrangler": "^3.1.1",
+ "zod": "^3.22.4"
+ }
+}