Very basic user following.

src/components/user_card_content/user_card_content.vue

@@ -6,6 +6,21 @@
         <span class="glyphicon glyphicon-user"></span>
         <div class='user-name'>{{user.name}}</div>
         <div class='user-screen-name'>@{{user.screen_name}}</div>
+        <div v-if="isOtherUser" class="following-info">
+          <div v-if="user.follows_you" class="following">
+            Follows you!
+          </div>
+          <div class="followed">
+            <span v-if="user.following">
+              Following them!
+            </span>
+            <span v-if="!user.following" >
+              <button @click="followUser">
+                Follow!
+              </button>
+            </span>
+          </div>
+        </div>
       </div>
     </div>
     <div class="panel-body">
@@ -37,6 +52,15 @@
           color: `#${this.user.profile_link_color}`,
           'background-image': `url(${this.user.cover_photo})`
         }
+      },
+      isOtherUser () {
+        return this.user !== this.$store.state.users.currentUser
+      }
+    },
+    methods: {
+      followUser () {
+        this.$store.state.api.backendInteractor.followUser(this.user.id)
+          .then((x) => console.log)
       }
     }
   }

src/components/user_profile/user_profile.vue

@@ -5,3 +5,20 @@
 </template>
 
 <script src="./user_profile.js"></script>
+
+<style lang="scss">
+ .user-profile {
+   flex: 2;
+   flex-basis: 500px;
+ }
+
+ .user-info {
+     .following-info {
+         display: flex;
+
+         div {
+             flex: 1;
+         }
+     }
+ }
+</style>

src/services/api/api.service.js

@@ -13,6 +13,9 @@ const MEDIA_UPLOAD_URL = '/api/statusnet/media/upload'
 const CONVERSATION_URL = '/api/statusnet/conversation'
 const MENTIONS_URL = '/api/statuses/mentions.json'
 const FRIENDS_URL = '/api/statuses/friends.json'
+const FOLLOWING_URL = '/api/friendships/create.json'
+// const UNFOLLOWING_URL = '/api/friendships/create.json'
+// const USER_URL = '/api/users/show.json'
 
 const oldfetch = window.fetch
 
@@ -30,6 +33,14 @@ const authHeaders = (user) => {
   }
 }
 
+const followUser = ({id, credentials}) => {
+  let url = `${FOLLOWING_URL}?user_id=${id}`
+  return fetch(url, {
+    headers: authHeaders(credentials),
+    method: 'POST'
+  }).then((data) => data.json())
+}
+
 const fetchFriends = ({credentials}) => {
   return fetch(FRIENDS_URL, { headers: authHeaders(credentials) })
     .then((data) => data.json())
@@ -143,6 +154,7 @@ const apiService = {
   fetchStatus,
   fetchMentions,
   fetchFriends,
+  followUser,
   favorite,
   unfavorite,
   retweet,

src/services/backend_interactor_service/backend_interactor_service.js

@@ -17,11 +17,16 @@ const backendInteractorService = (credentials) => {
     return apiService.fetchFriends({credentials})
   }
 
+  const followUser = (id) => {
+    return apiService.followUser({credentials, id})
+  }
+
   const backendInteractorServiceInstance = {
     fetchStatus,
     fetchConversation,
     fetchMentions,
     fetchFriends,
+    followUser,
     verifyCredentials: apiService.verifyCredentials
   }