How to use this middleware with koa-bodyparser

Hello and thank you all for the work done on this project.

I’m trying to integrate this middleware into a project that already uses koa-bodyparser (required middleware to koa-passport).

Unfortunately when trying to reach a route when this middleware is declared the road never answers. I guess there is a conflict with co-body somewhere.

Do we have a workaround for using this middleware with koa-bodyparser or am i going wrong ?

const koa = require('koa');
const bodyParser = require('koa-bodyparser');
const router = require('koa-joi-router');
const Joi = router.Joi;

const app = koa();
const helloRouter = router();

app.use(bodyParser()); // <-- comment and the call will work

helloRouter.route({
  method: 'post',
  path: '/hello',
  validate: {
    body: {
      name: Joi.string().required()
    },
    type: 'json'
  },
  handler: function* hello() {
    const { name } = this.request.body;
    this.body = `Hello ${name}`;
  }
});

app.use(helloRouter.middleware());

app.listen(3000);

The call : curl -X POST -H "Content-Type: application/json" -d '{ "name": "John" }' "http://localhost:3000/hello"

[hilkeheremans]

I’m using koa-body and had the same issue. Following @yelworc’s suggestion, I forked the repo and skipped the body parsing step should it already be parsed.

Seems to work fine with validation still intact, although I should note that limits on body size (maxBody option) should no longer be configured in joi-router at that point, but rather in whatever body parser you use.

See also https://github.com/hilkeheremans/joi-router or npm @thinman/koa-joi-router

Holding off on a PR until one of the contributes chimes in with an opinion.

[pke]

Maybe this lib should not even depend on a body parser at all but rather integrate into whatever is available upstream in middleware. So it could just take body as being parsed already and validate it.