Add register functionality.

web-app/src/api/auth.ts

@@ -10,7 +10,7 @@ export class AuthApiClient extends ApiClient {
   }
 
   async register(username: string, password: string): Promise<void> {
-    await super.postJson('/register', { username, password })
+    await super.postNoResponse('/register', { username, password })
   }
 
   async getUsernameAvailability(username: string): Promise<boolean> {

web-app/src/pages/LoginPage.vue

@@ -45,6 +45,24 @@ async function doLogin() {
   }
 }
 
+async function doRegister() {
+  disableForm.value = true
+  showLoader()
+  try {
+    await apiClient.register(username.value, password.value)
+    await doLogin()
+  } catch (err) {
+    hideLoader()
+    if (err instanceof ApiError) {
+      await showAlert(err.message)
+    } else {
+      await showAlert('Request failed: ' + JSON.stringify(err))
+    }
+  } finally {
+    disableForm.value = false
+  }
+}
+
 function isDataValid() {
   return username.value.length > 0 && password.value.length >= 8
 }
@@ -70,7 +88,8 @@ function generateSampleData() {
       <div style="display: flex; margin-left: 1rem; margin-right: 1rem;">
         <AppButton button-type="submit" :disabled="disableForm || !isDataValid()" style="flex-grow: 1;">Login
         </AppButton>
-        <AppButton button-type="button" button-style="secondary" :disabled="true">Register</AppButton>
+        <AppButton button-type="button" button-style="secondary" :disabled="disableForm || !isDataValid()"
+          @click="doRegister()">Register</AppButton>
       </div>
       <div v-if="isDev">
         <AppButton button-type="button" @click="generateSampleData()">Generate Sample Data</AppButton>