Docs / Frameworks / Hono / Workers

Hono / Cloudflare Workers

In a Worker, create the client per-request from env bindings — globals don't persist across isolates the way they would on Node, and you want the request's cookie forwarded to the auth Worker anyway.

// src/index.ts
import { Hono } from "hono"
import { createFlarelink } from "@flarelink/client"

type Env = { FLARELINK_AUTH_URL: string; FLARELINK_SERVICE_KEY: string }
const app = new Hono<{ Bindings: Env }>()

app.get("/posts", async (c) => {
  const flarelink = createFlarelink({
    url: c.env.FLARELINK_AUTH_URL,
    serviceKey: c.env.FLARELINK_SERVICE_KEY,
    cookies: () => c.req.header("cookie") ?? "",
  })
  const { rows: posts } = await flarelink.from("posts").limit(20)
  return c.json({ posts })
})

export default app

Protect a route

A requireUser middleware constructs the client, resolves the user, and stashes it on the context — protected handlers read c.var.user and scope every query to it.

// src/auth.ts
import { createFlarelink, type User } from "@flarelink/client"
import { createMiddleware } from "hono/factory"

export const requireUser = createMiddleware<{
  Bindings: Env; Variables: { user: User; flarelink: ReturnType<typeof createFlarelink> }
}>(async (c, next) => {
  const flarelink = createFlarelink({
    url: c.env.FLARELINK_AUTH_URL,
    serviceKey: c.env.FLARELINK_SERVICE_KEY,
    cookies: () => c.req.header("cookie") ?? "",
  })
  const me = await flarelink.auth.getMe()
  if (!me) return c.json({ error: "Unauthorized" }, 401)
  c.set("user", me)
  c.set("flarelink", flarelink)
  await next()
})

// src/index.ts
app.get("/my/posts", requireUser, async (c) => {
  const { rows } = await c.var.flarelink
    .from("posts")
    .where({ author_id: c.var.user.id })   // scope to the signed-in user
  return c.json({ posts: rows })
})

# wrangler vars / .dev.vars
FLARELINK_AUTH_URL=https://myapp-auth.your-subdomain.workers.dev
FLARELINK_SERVICE_KEY=flarelink_sk_…

Something unclear or missing? [email protected] llms-full.txt ↗