Make new routing system the default

src/validation/Validator.ts

@@ -8,6 +8,8 @@ import {Logging} from '../service/Logging'
 /** Type tag for a validated runtime type. */
 export type Valid<T> = TypeTag<'@extollo/lib:Valid'> & T
 
+export type ValidatorFactory<T extends Validator<T>> = T | (() => T)
+
 /**
  * Error thrown if the schema for a validator cannot be located.
  */

src/validation/middleware.ts

@@ -0,0 +1,22 @@
+import {Request} from '../http/lifecycle/Request'
+import {Validator} from './Validator'
+import {ZodError} from 'zod'
+import {HTTPStatus, left, right} from '../util'
+import {json} from '../http/response/JSONResponseFactory'
+
+export function validateMiddleware<T>(validator: Validator<T>) {
+    // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
+    return (request: Request) => {
+        try {
+            const data = validator.parse(request.parsedInput)
+            return right(data)
+        } catch (e) {
+            if ( e instanceof ZodError ) {
+                // FIXME render this better
+                return left(json(e.formErrors).status(HTTPStatus.BAD_REQUEST))
+            }
+
+            throw e
+        }
+    }
+}