Send get method some cases return Not Found

[onsummer]

I try to write an simple jwt api with mongodb, the /user router code like this:

router.use('/user', async (ctx, next) => {
  // do sth. and run next
}, async (ctx) => {
  try {
    // here do some mongodb query, and get right result
    ctx.body = {
      // I want to return query result here, but return 'Not Found' and 404
    }
  } catch (e) {}
})

return 'Not Found' and 404 in postman

But I write a simple /test router code:

router.get('/test', async (ctx, next) => {
  ctx.body = "456"
  await next()
}, async (ctx) => {
  ctx.body += "1234"
})

I can get "4561234" in postman. Confused.

---

{
  "dependencies": {
    "crypto-js": "^4.0.0",
    "jsonwebtoken": "^8.5.1",
    "koa": "^2.13.1",
    "koa-bodyparser": "^4.3.0",
    "koa-router": "^10.0.0",
    "mongoose": "^5.12.13"
  }
}

Tks for reading my poor English

[jonathanong]

you should ask this in the koa-router repository, not here

[lagden]

ctx.body is "456", right?
so, ctx.body += "123" is equal "456" + "123" = "456123"

if you want "123456", do it:

router.get('/test', async (ctx, next) => {
  await next()
  ctx.body += "456"
}, async ctx => {
  ctx.body = "123"
})