Validator: Revert middleware to returning a validator instance

Signed-off-by: Fadion Dashi <jonidashi@gmail.com>

packages/validator/index.js

@@ -1,11 +1,9 @@
 const Validator = require('./lib/validator')
 const Middleware = require('./lib/middleware')
-const ValidationError = require('./lib/errors/validation-error')
 const Joi = require('joi')
 
 module.exports = {
   rule: Joi,
   Validator,
-  ValidatorMiddleware: Middleware,
-  ValidationError
+  ValidatorMiddleware: Middleware
 }

packages/validator/lib/middleware.js

@@ -1,5 +1,4 @@
 const Validator = require('./validator')
-const ValidationError = require('./errors/validation-error')
 
 /**
  * Middleware class.
@@ -16,22 +15,17 @@ class Middleware {
   }
 
   /**
-   * Express middleware that runs the validator throws if
-   * it fails.
+   * Express middleware that runs the validator and
+   * injects it as an instance.
    *
    * @public
    * @param {Object} req
    * @param {Object} res
    * @param {Function} next
    */
   middleware(req, res, next) {
-    const validator = new Validator(this.fields(req), this.rules())
-
-    if (validator.fails) {
-      throw new ValidationError(validator.errors)
-    } else {
-      next()
-    }
+    req.validator = new Validator(this.fields(req), this.rules())
+    next()
   }
 
   /**
@@ -42,7 +36,7 @@ class Middleware {
    * @returns {Object}
    */
   fields(req) {
-    return {...req.body, ...req.query}
+    return { ...req.body, ...req.query }
   }
 }