feat: added basic fastify boilerplate

.gitignore

@@ -1,6 +1,6 @@
 coverage
 packages/express-krabs/dev
-packages/express-fastify/dev
+packages/fastify-krabs/dev
 
 # Created by https://www.toptal.com/developers/gitignore/api/node,osx,visualstudiocode,intellij,windows,linux
 # Edit at https://www.toptal.com/developers/gitignore?templates=node,osx,visualstudiocode,intellij,windows,linux

package.json

@@ -24,7 +24,7 @@
     "prepare": "npm run test && npm run build",
     "build": "yarn build:express && yarn build:fastify",
     "build:express": "tsc packages/express-krabs/index.ts --outDir packages/express-krabs/dist --declarationDir packages/express-krabs/dist --declaration true",
-    "build:fastify": "tsc packages/express-fastify/index.ts --outDir packages/express-fastify/dist --declarationDir packages/express-fastify/dist --declaration true"
+    "build:fastify": "tsc packages/fastify-krabs/index.ts --outDir packages/fastify-krabs/dist --declarationDir packages/fastify-krabs/dist --declaration true"
   },
   "dependencies": {
     "chalk": "^4.1.1",

packages/fastify-krabs/index.ts

@@ -0,0 +1,58 @@
+import * as chalk from 'chalk';
+import type { FastifyRequest, FastifyReply } from 'fastify';
+import { currentEnv, safeEnv } from '../utils/env';
+import { getTenantConfig } from '../utils/config';
+import { Config } from '../utils/config/config';
+import findTenant from '../utils/tenants/findTenant';
+import resolveRoutes from '../utils/routes/resolve';
+
+type Merge<A, B> = { [K in keyof (A | B)]: K extends keyof B ? B[K] : A[K] };
+
+if (!currentEnv) {
+  const warningMessage = `
+    \u{26A0}\u{FE0F} ${chalk.bold(' Warning ')}
+    The ${chalk.bold('NODE_ENV')} environment variable is ${chalk.bold('undefined')}.
+    Krabs will run in ${chalk.bold(safeEnv)} mode, meaning it will only serve
+    tenants domains set as ${chalk.bold(safeEnv)} domains.
+  `
+    .split('\n')
+    .map((line) => line.trimLeft())
+    .join('\n');
+
+  console.warn(chalk.yellow(warningMessage));
+}
+
+export default async function krabs(
+  request: FastifyRequest,
+  reply: FastifyReply,
+  app: any,
+  handle: any,
+  config?: Config): Promise<void> {
+
+  const { tenants } = config ?? (await getTenantConfig());
+
+  const rawHostname = request.hostname;
+  const pathName = request.url;
+  const query = request.query;
+
+  const hostname = rawHostname.replace(/:\d+$/, '');
+  const tenant = findTenant(tenants, hostname);
+
+  if (!tenant) {
+    reply.status(500).send({
+      error: 'Invalid tenant',
+    });
+  }
+
+  const route = resolveRoutes(tenant?.name!, pathName);
+
+  if (route) {
+    // @ts-ignore
+    request.tenant = tenant;
+    app.render(request.raw, reply.raw, route, query);
+    return;
+  }
+
+  handle(request, reply);
+  return;
+};

packages/fastify-krabs/package.json

@@ -12,6 +12,8 @@
   "private": false,
   "dependencies": {
     "chalk": "^4.1.1",
-    "express": "^4.17.1"
+    "express": "^4.17.1",
+    "fastify": "^3.19.2",
+    "fastify-plugin": "^3.0.0"
   }
 }