fix constraint on update

src/index.ts

@@ -1,7 +1,87 @@
-import { Elysia } from "elysia";
+import { Elysia, t } from "elysia";
+
+// dummy data
+const data = {
+  foods: ["Banana", "Apple", "Watermelon"],
+};
 
 const app = new Elysia().get("/", () => "Hello Elysia").listen(3000);
 
+app.group("/api", (app) => {
+  return app
+    .post(
+      "/create",
+      ({ body: { food } }) => {
+        data.foods.push(food);
+
+        const id = data.foods.length - 1;
+
+        return {
+          status: "success",
+          message: `${food} is added to the list.`,
+          data: {
+            id,
+            food: data.foods[id],
+          },
+        };
+      },
+      {
+        body: t.Object({
+          food: t.String(),
+        }),
+      },
+    )
+
+    .get("/read", () => ({
+      status: "success",
+      message: "Reading foods.",
+      data: data.foods,
+    }))
+
+    .put(
+      "/update",
+      ({ body: { food, id } }) => {
+        if (data.foods[id] === undefined) {
+          return {
+            status: "errror",
+            message: `${id} does not exist.`,
+          };
+        }
+        data.foods[id] = food;
+
+        return {
+          status: "success",
+          message: `${food} is updated.`,
+          data: {
+            food: data.foods[id],
+          },
+        };
+      },
+      {
+        body: t.Object({
+          id: t.Number(),
+          food: t.String(),
+        }),
+      },
+    )
+
+    .delete(
+      "/delete",
+      ({ body: { id } }) => {
+        const deleted = data.foods.splice(id, 1);
+
+        return {
+          status: "success",
+          message: `${deleted[0]} is deleted.`,
+          data: {
+            food: deleted[0],
+          },
+        };
+      },
+      { body: t.Object({ id: t.Number() }) },
+    );
+});
+
 console.log(
-  `🦊 Elysia is running at ${app.server?.hostname}:${app.server?.port}`
+  `🦊 Elysia is running at ${app.server?.hostname}:${app.server?.port}`,
 );