add client side password confirmation check

play-node-go/src/components/Signup/Signup.js

@@ -11,6 +11,14 @@ const Signup = (props) => {
 
   const handleSubmit = async e => {
     e.preventDefault();
+    if (password !== confirmPassword) {
+      return props.dispatch({
+        type: 'ERR',
+        message: 'AUTH_ERROR',
+        body: { authError: 'Password fields must be the same'}
+      })
+    }
+
     const signupResponse = await authServices.signupService({
       username,
       email,

play-node-go/src/reducers/err/stateReducer.err.js

@@ -0,0 +1,17 @@
+// @flow
+import type { state, action } from '../stateReducer';
+
+export const errorReducer = (state: state, action: action):state => {
+  switch (action.message) {
+    case 'AUTH_ERROR':
+      return authErrorReducer(state, action);
+
+    default:
+      return state;
+  } 
+}
+
+function authErrorReducer(state: state, action: action): state {
+  const auth = action.body.authError;
+  return {...state, errors: {auth} };
+}

play-node-go/src/reducers/stateReducer.js

@@ -1,6 +1,7 @@
 // @flow
 import { initState } from './init/stateReducer.init';
 import { authReducer } from './auth/stateReducer.auth';
+import { errorReducer } from './err/stateReducer.err';
 import { indexReducer } from './index/stateReducer.index';
 
 export type state = {
@@ -20,11 +21,14 @@ export const stateReducer = (state: state, action: action): state => {
   switch (action.type) {
     case 'INIT': return initState();
     
+    case 'AUTH':
+      return authReducer(errorStrippedState, action);
+
     case 'INDEX':
       return indexReducer(errorStrippedState, action);
 
-    case 'AUTH':
-      return authReducer(errorStrippedState, action);
+    case 'ERR':
+      return errorReducer(errorStrippedState, action);
 
     default: return state;
   }