diff --git a/lib/Pear/LocalLoop.pm b/lib/Pear/LocalLoop.pm
index fe6d738..f0f7f3b 100644
--- a/lib/Pear/LocalLoop.pm
+++ b/lib/Pear/LocalLoop.pm
@@ -4,7 +4,6 @@ use Mojo::Base 'Mojolicious';
 use Data::UUID;
 use Mojo::JSON;
 use Email::Valid;
-use ORM::Date;
 use Authen::Passphrase::BlowfishCrypt;
 use Scalar::Util qw(looks_like_number);
 use Pear::LocalLoop::Schema;
diff --git a/lib/Pear/LocalLoop/Controller/Api/Register.pm b/lib/Pear/LocalLoop/Controller/Api/Register.pm
index fdab2f3..12cab4e 100644
--- a/lib/Pear/LocalLoop/Controller/Api/Register.pm
+++ b/lib/Pear/LocalLoop/Controller/Api/Register.pm
@@ -3,8 +3,47 @@ use Mojo::Base 'Mojolicious::Controller';
 use ORM::Date;
 use Data::Dumper;
 
+has error_messages => sub {
+  return {
+    token => {
+      required => { message => 'No token sent.', status => 400 },
+      in_resultset => { message => 'Token invalid or has been used.', status => 401 },
+    },
+    username => {
+      required => { message => 'No username sent or was blank.', status => 400 },
+      like => { message => 'Username can only be A-Z, a-z and 0-9 characters.', status => 400 },
+      not_in_resultset => { message => 'Username exists.', status => 403 },
+    },
+    email => {
+      required => { message => 'No email sent.', status => 400 },
+      email => { message => 'Email is invalid.', status => 400 },
+      not_in_resultset => { message => 'Email exists.', status => 403 },
+    },
+    postcode => {
+      required => { message => 'No postcode sent.', status => 400 },
+    },
+    password => {
+      required => { message => 'No password sent.', status => 400 },
+    },
+    usertype => {
+      required => { message => 'No usertype sent.', status => 400 },
+      in => { message => '"usertype" is invalid.', status => 400 },
+    },
+    age => {
+      required => { message => 'No age sent.', status => 400 },
+      in_resultset => { message => 'Age range is invalid.', status => 400 },
+    },
+    fulladdress => {
+      required => { message => 'No fulladdress sent.', status => 400 },
+    },
+  };
+};
+
 sub post_register{
-  my $self = shift;
+  my $c = shift;
+  my $self = $c;
+
+  my $validation = $c->validation;
 
   my $json = $self->req->json;
   $self->app->log->debug( "\n\nStart of register");
@@ -18,144 +57,67 @@ sub post_register{
     },
     status => 400,); #Malformed request   
   }
+  $validation->input( $json );
 
-  my $token = $json->{token};
-  if ( ! defined $token ){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'No token sent.',
-    },
-    status => 400,); #Malformed request   
-  }
-  elsif ( ! $self->is_token_unused($token) ) {
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'Token invalid or has been used.',
-    },
-    status => 401,); #Unauthorized
-  }
+  my $token_rs = $c->schema->resultset('AccountToken')->search_rs({used => 0});
+  $validation->required('token')->in_resultset('accounttokenname', $token_rs);
 
-  my $username = $json->{username};
-  if ( ! defined $username ){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'No username sent.',
-    },
-    status => 400,); #Malformed request   
-  }
-  elsif ($username eq ''){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'Username cannot be blank.',
-    },
-    status => 400,);  #Malformed request   
-  }
-  elsif ( ! ($self->valid_username($username))){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'Username can only be A-Z, a-z and 0-9 characters.',
-    },
-    status => 400,); #Malformed request
-  }
-  elsif ( $self->does_username_exist($username) ) {
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'Username exists.',
-    },
-    status => 403,); #Forbidden
-  }
+  my $customer_rs = $c->schema->resultset('Customer');
+  $validation->required('username')->like(qr/^[A-Za-z0-9]+$/)->not_in_resultset('username', $customer_rs);
 
-  my $email = $json->{email};
-  if ( ! defined $email ){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'No email sent.',
-    },
-    status => 400,); #Malformed request   
-  }
-  elsif ( ! $self->valid_email($email)){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'Email is invalid.',
-    },
-    status => 400,); #Malformed request
-  }
-  elsif($self->does_email_exist($email)) {
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'Email exists.',
-    },
-    status => 403,); #Forbidden
-  }
+  my $user_rs = $c->schema->resultset('User');
+  $validation->required('email')->email->not_in_resultset('email', $user_rs);
 
   #TODO test to see if post code is valid.
-  my $postcode = $json->{postcode};
-  if ( ! defined $postcode ){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'No postcode sent.',
-    },
-    status => 400,); #Malformed request   
-  }
+  $validation->required('postcode');
 
   #TODO should we enforce password requirements.
-  my $password = $json->{password};  
-  if ( ! defined $password ){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'No password sent.',
-    },
-    status => 400,); #Malformed request   
+  $validation->required('password');
+
+  $validation->required('usertype')->in('customer', 'organisation');
+
+  my $usertype = $validation->param('usertype') || '';
+
+  if ( $usertype eq 'customer' ) {
+
+    my $age_rs = $c->schema->resultset('AgeRange');
+    $validation->required('age')->in_resultset('agerangestring', $age_rs);
+
+  } elsif ( $usertype eq 'organisation' ) {
+
+    $validation->required('fulladdress');
+
   }
+
+  if ( $validation->has_error ) {
+    my $failed_vals = $validation->failed;
+    for my $val ( @$failed_vals ) {
+      my $check = shift @{ $validation->error($val) };
+      return $c->render(
+        json => {
+          success => Mojo::JSON->false,
+          message => $c->error_messages->{$val}->{$check}->{message},
+        },
+        status => $c->error_messages->{$val}->{$check}->{status},
+      );
+    }
+  }
+
+  my $token = $validation->param('token');
+  my $username = $validation->param('username');
+  my $email = $validation->param('email');
+  my $postcode = $validation->param('postcode');
+  my $password = $validation->param('password');
+
   my $hashedPassword = $self->generate_hashed_password($password);
 
   my $secondsTime = time();
   my $date = ORM::Date->new_epoch($secondsTime)->mysql_date;
 
-  my $usertype = $json->{usertype};
-      
-  if ( ! defined $usertype ){
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => 'No usertype sent.',
-    },
-    status => 400,); #Malformed request   
-  }
-  elsif ($usertype eq 'customer'){
-    $self->app->log->debug('Path: file:' . __FILE__ . ', line: ' . __LINE__);
-
-    my $age = $json->{age};
-    if ( ! defined $age ){
-      $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-      return $self->render( json => {
-        success => Mojo::JSON->false,
-        message => 'No age sent.',
-      },
-      status => 400,); #Malformed request   
-    }
-
-    my $ageForeignKey = $self->get_age_foreign_key($age);
-    if ( ! defined $ageForeignKey ){
-      $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-      return $self->render( json => {
-        success => Mojo::JSON->false,
-        message => 'Age range is invalid.',
-      },
-      status => 400,); #Malformed request
-    }
+  if ($usertype eq 'customer'){
+    my $ageForeignKey = $self->get_age_foreign_key( $validation->param('age') );
 
+    #TODO this will go away with a transaction, when we move this bit to dbic schema code
     #TODO UNTESTED as it's hard to simulate.
     #Token is no longer valid race condition.
     if ( ! $self->set_token_as_used($token) ){
@@ -182,23 +144,13 @@ sub post_register{
     my $insertUser = $self->db->prepare("INSERT INTO Users (CustomerId_FK, Email, JoinDate, HashedPassword) VALUES (?, ?, ?, ?)");
     my $rowsInsertedUser = $insertUser->execute($idToUse, $email, $date, $hashedPassword);
 
-    $self->app->log->debug('Path Success: file:' . __FILE__ . ', line: ' . __LINE__);
     return $self->render( json => { success => Mojo::JSON->true } );
   }
   elsif ($usertype eq 'organisation') {
-    $self->app->log->debug('Path: file:' . __FILE__ . ', line: ' . __LINE__);
-
     #TODO validation on the address. Or perhaps add the organisation to a "to be inspected" list then manually check them.
-    my $fullAddress = $json->{fulladdress};
-    if ( ! defined $fullAddress ){
-      $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-      return $self->render( json => {
-        success => Mojo::JSON->false,
-        message => 'No fulladdress sent.',
-      },
-      status => 400,); #Malformed request   
-    }
+    my $fullAddress = $validation->param('fulladdress');
 
+    # TODO This will go away with transactioning
     #TODO UNTESTED as it's hard to simulate. 
     #Token is no longer valid race condition.
     if ( ! $self->set_token_as_used($token) ){
@@ -225,17 +177,8 @@ sub post_register{
     my $insertUser = $self->db->prepare("INSERT INTO Users (OrganisationalId_FK, Email, JoinDate, HashedPassword) VALUES (?, ?, ?, ?)");
     my $rowsInsertedUser = $insertUser->execute($idToUse, $email, $date, $hashedPassword);
 
-    $self->app->log->debug('Path Success: file:' . __FILE__ . ', line: ' . __LINE__);
     return $self->render( json => { success => Mojo::JSON->true } );
   }
-  else{
-    $self->app->log->debug('Path Error: file:' . __FILE__ . ', line: ' . __LINE__);
-    return $self->render( json => {
-      success => Mojo::JSON->false,
-      message => '"usertype" is invalid.',
-    },
-    status => 400,); #Malformed request
-  }
 }
 
 1;