Endpoint Middleware #3881
Description
Describe the problem
I would like to propose a better model for endpoints middleware rather than the global hooks.
Current state: Today, we only have what appears to be one (1) hook src/hooks.ts that is run every time SvelteKit receives a request.
Issue: While this is ok for general things such as checking for authentication with a pathname
e.g., check_auth if pathname.startsWith('/admin'). The handle becomes quite large and unwieldy to check each pathname, etc.
Describe the proposed solution
Proposal: Permit the creation of one (1) hook per Endpoint in addition to the globally defined hook.
// src/routes/user.hook.ts
// This file can be used to perform a logic for this endpoint only
export async function handle({event, resolve}) {
const {method, body} = event.request;
// get to the page if GET request
if (method === 'GET') return resolve(event);
try {
await validate(body)
return resolve(event)
} catch (error) {
return Response(JSON.stringify(e), {status: 422})
}
}The sequence for Sveltekit hooks would be as follows
src/hooks.ts -> src/{endpoint}.hook.{ts/js} -> src/{endpoint}.{ts/js} -> src/{endpoint}.svelteThis would provide a nice global hook with the additional benefits of a hook per endpoint.
Alternatives considered
Current implementation is as follows and is a terrible experience.
export async function handle({event, resolve}) {
const route = event.url.pathname
const {method, body} = event.request;
switch (route) {
case '/users':
if (method === 'GET') return resolve(event);
try {
await validateUserBody(body)
return resolve(event)
} catch (error) {
return Response(JSON.stringify(e), {status: 422})
}
break;
case '/notes':
if (method === 'GET') return resolve(event);
try {
await validateNotesBody(body)
return resolve(event)
} catch (error) {
return Response(JSON.stringify(e), {status: 422})
}
break;
.... other endpoints....
}
}
### Importance
would make my life easier
### Additional Information
I think this feature would be nice to have too many of the developers that are using Sveltekit today.