When using koa-passport I am always receiving a 404 or 401 error.
passport.authenticate( 'local', {
successRedirect: '/',
failureRedirect: '/login',
failureFlash: true
} );
(This gave me many hours of struggle so wanted to post it here for others.)
When using koa-passport you must be sure to both return the result of the authentication, and call authenticate with the context.
return passport.authenticate( 'local', {
successRedirect: '/',
failureRedirect: '/login',
failureFlash: true
} )( ctx );