Add basic http router

Update api

api/index.ts

@@ -1 +0,0 @@
-console.log("Hello via Bun!");

api/src/index.ts

@@ -0,0 +1,49 @@
+import {
+	HttpApi,
+	HttpApiBuilder,
+	HttpApiEndpoint,
+	HttpApiGroup,
+} from "@effect/platform";
+import { BunHttpServer, BunRuntime } from "@effect/platform-bun";
+import { Console, Context, Effect, Layer, Schema } from "effect";
+
+const MyApi = HttpApi.make("MyAPI").add(
+	HttpApiGroup.make("Greetings")
+		.add(HttpApiEndpoint.get("hello-world")`/`.addSuccess(Schema.String))
+		.add(HttpApiEndpoint.get("hello-failure")`/fail`.addError(Schema.String)),
+);
+
+class UsersRepository extends Context.Tag("UsersRepository")<
+	UsersRepository,
+	{
+		readonly findById: (id: number) => Effect.Effect<string>;
+	}
+>() {}
+
+// const repo = UsersRepository.of({ findById: (id) => Effect.succeed(`${id}`) });
+
+const GreetingsLive = HttpApiBuilder.group(MyApi, "Greetings", (handlers) =>
+	handlers
+		.handle("hello-world", () =>
+			Effect.gen(function* () {
+				const repository = yield* UsersRepository;
+				yield* Console.log("<- Hello World handler invoked");
+				return yield* repository.findById(42);
+			}),
+		)
+		.handle("hello-failure", () => Effect.fail("Hello fail")),
+);
+
+const MyApiLive = HttpApiBuilder.api(MyApi).pipe(Layer.provide(GreetingsLive));
+
+const userRepoLive = Layer.succeed(UsersRepository, {
+	findById: (id) => Effect.succeed(`${id}`),
+});
+
+const ServerLive = HttpApiBuilder.serve().pipe(
+	Layer.provide(MyApiLive),
+	Layer.provide(BunHttpServer.layer({ port: 3000 })),
+	Layer.provide(userRepoLive),
+);
+
+Layer.launch(ServerLive).pipe(BunRuntime.runMain);