Error handling in EdgeSpark

import { db } from "edgespark";
import { auth } from "edgespark/http";
import { eq } from "drizzle-orm";
import { Hono } from "hono";
import { posts } from "@defs";

function err(message: string, details?: unknown) {
  return { error: message, ...(details ? { details } : {}) };
}

const app = new Hono().post("/api/posts", async (c) => {
  let body: { title?: string; content?: string };

  try {
    body = await c.req.json();
  } catch {
    return c.json(err("Request body must be valid JSON"), 400);
  }

  if (!body.title || body.title.trim().length === 0) {
    return c.json(err("Validation failed", { field: "title", issue: "required" }), 422);
  }

  const [post] = await db
    .insert(posts)
    .values({ title: body.title.trim(), content: body.content ?? null, authorId: auth.user.id })
    .returning();

  return c.json(post, 201);
});

export default app;

import { db } from "edgespark";
import { eq } from "drizzle-orm";
import { Hono } from "hono";
import { posts } from "@defs";

const app = new Hono().get("/api/posts/:id", async (c) => {
  const id = Number(c.req.param("id"));

  if (Number.isNaN(id) || id < 1) {
    return c.json({ error: "Invalid ID" }, 400);
  }

  const [post] = await db.select().from(posts).where(eq(posts.id, id));

  if (!post) {
    return c.json({ error: "Post not found" }, 404);
  }

  return c.json(post);
});

export default app;

import { db } from "edgespark";
import { eq } from "drizzle-orm";
import { Hono } from "hono";
import { posts } from "@defs";

const app = new Hono().get("/api/posts/:id", async (c) => {
  try {
    const id = Number(c.req.param("id"));
    const [post] = await db.select().from(posts).where(eq(posts.id, id));

    if (!post) return c.json({ error: "Not found" }, 404);
    return c.json(post);
  } catch (error) {
    console.error("Failed to fetch post", { id: c.req.param("id"), error });
    return c.json({ error: "Internal server error" }, 500);
  }
});

export default app;

import { Hono } from "hono";

const app = new Hono();

app.onError((error, c) => {
  console.error("Unhandled error", { path: c.req.path, error });
  return c.json({ error: "Internal server error" }, 500);
});

app.notFound((c) => {
  return c.json({ error: "Not found" }, 404);
});

export default app;