diff --git a/app/src/main/java/com/keylesspalace/tusky/AccountFragment.java b/app/src/main/java/com/keylesspalace/tusky/AccountFragment.java
index 23391fd90..09115c601 100644
--- a/app/src/main/java/com/keylesspalace/tusky/AccountFragment.java
+++ b/app/src/main/java/com/keylesspalace/tusky/AccountFragment.java
@@ -36,6 +36,7 @@ import com.android.volley.Response;
 import com.android.volley.VolleyError;
 import com.android.volley.toolbox.StringRequest;
 import com.keylesspalace.tusky.entity.Account;
+import com.keylesspalace.tusky.entity.Relationship;
 
 import java.util.HashMap;
 import java.util.List;
@@ -63,6 +64,7 @@ public class AccountFragment extends Fragment implements AccountActionListener,
     private EndlessOnScrollListener scrollListener;
     private AccountAdapter adapter;
     private TabLayout.OnTabSelectedListener onTabSelectedListener;
+    private MastodonAPI api;
 
     public static AccountFragment newInstance(Type type) {
         Bundle arguments = new Bundle();
@@ -92,6 +94,7 @@ public class AccountFragment extends Fragment implements AccountActionListener,
                 getString(R.string.preferences_file_key), Context.MODE_PRIVATE);
         domain = preferences.getString("domain", null);
         accessToken = preferences.getString("accessToken", null);
+        api = ((BaseActivity) getActivity()).mastodonAPI;
     }
 
     @Override
@@ -170,8 +173,6 @@ public class AccountFragment extends Fragment implements AccountActionListener,
     }
 
     private void fetchAccounts(final String fromId) {
-        MastodonAPI api = ((BaseActivity) getActivity()).mastodonAPI;
-
         Callback<List<Account>> cb = new Callback<List<Account>>() {
             @Override
             public void onResponse(Call<List<Account>> call, retrofit2.Response<List<Account>> response) {
@@ -265,35 +266,23 @@ public class AccountFragment extends Fragment implements AccountActionListener,
     }
 
     public void onBlock(final boolean block, final String id, final int position) {
-        String endpoint;
-        if (!block) {
-            endpoint = String.format(getString(R.string.endpoint_unblock), id);
-        } else {
-            endpoint = String.format(getString(R.string.endpoint_block), id);
-        }
-        String url = "https://" + domain + endpoint;
-        StringRequest request = new StringRequest(Request.Method.POST, url,
-                new Response.Listener<String>() {
-                    @Override
-                    public void onResponse(String response) {
-                        onBlockSuccess(block, position);
-                    }
-                },
-                new Response.ErrorListener() {
-                    @Override
-                    public void onErrorResponse(VolleyError error) {
-                        onBlockFailure(block, id);
-                    }
-                }) {
+        Callback<Relationship> cb = new Callback<Relationship>() {
             @Override
-            public Map<String, String> getHeaders() throws AuthFailureError {
-                Map<String, String> headers = new HashMap<>();
-                headers.put("Authorization", "Bearer " + accessToken);
-                return headers;
+            public void onResponse(Call<Relationship> call, retrofit2.Response<Relationship> response) {
+                onBlockSuccess(block, position);
+            }
+
+            @Override
+            public void onFailure(Call<Relationship> call, Throwable t) {
+                onBlockFailure(block, id);
             }
         };
-        request.setTag(TAG);
-        VolleySingleton.getInstance(getContext()).addToRequestQueue(request);
+
+        if (!block) {
+            api.unblockAccount(id).enqueue(cb);
+        } else {
+            api.blockAccount(id).enqueue(cb);
+        }
     }
 
     private void onBlockSuccess(boolean blocked, int position) {
diff --git a/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java b/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java
index 47b3283f3..4c8f21548 100644
--- a/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java
+++ b/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java
@@ -76,6 +76,7 @@ import com.android.volley.Request;
 import com.android.volley.Response;
 import com.android.volley.VolleyError;
 import com.android.volley.toolbox.JsonObjectRequest;
+import com.keylesspalace.tusky.entity.Media;
 import com.keylesspalace.tusky.entity.Status;
 
 import org.json.JSONArray;
@@ -96,6 +97,12 @@ import java.util.Locale;
 import java.util.Map;
 import java.util.Random;
 
+import okhttp3.MediaType;
+import okhttp3.MultipartBody;
+import okhttp3.RequestBody;
+import retrofit2.Call;
+import retrofit2.Callback;
+
 public class ComposeActivity extends BaseActivity {
     private static final String TAG = "ComposeActivity"; // logging tag, and volley request tag
     private static final int STATUS_CHARACTER_LIMIT = 500;
@@ -138,7 +145,7 @@ public class ComposeActivity extends BaseActivity {
         ImageView preview;
         Uri uri;
         String id;
-        Request uploadRequest;
+        Call<Media> uploadRequest;
         ReadyStage readyStage;
         byte[] content;
         long mediaSize;
@@ -630,53 +637,28 @@ public class ComposeActivity extends BaseActivity {
 
     private void sendStatus(String content, String visibility, boolean sensitive,
                             String spoilerText) {
-        String endpoint = getString(R.string.endpoint_status);
-        String url = "https://" + domain + endpoint;
-        JSONObject parameters = new JSONObject();
-        try {
-            parameters.put("status", content);
-            parameters.put("visibility", visibility);
-            parameters.put("sensitive", sensitive);
-            parameters.put("spoiler_text", spoilerText);
-            if (inReplyToId != null) {
-                parameters.put("in_reply_to_id", inReplyToId);
-            }
-            JSONArray mediaIds = new JSONArray();
-            for (QueuedMedia item : mediaQueued) {
-                mediaIds.put(item.id);
-            }
-            if (mediaIds.length() > 0) {
-                parameters.put("media_ids", mediaIds);
-            }
-        } catch (JSONException e) {
-            onSendFailure();
-            return;
+        ArrayList<String> mediaIds = new ArrayList<String>();
+
+        for (QueuedMedia item : mediaQueued) {
+            mediaIds.add(item.id);
         }
-        JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, url, parameters,
-                new Response.Listener<JSONObject>() {
-                    @Override
-                    public void onResponse(JSONObject response) {
-                        onSendSuccess();
-                    }
-                },
-                new Response.ErrorListener() {
-                    @Override
-                    public void onErrorResponse(VolleyError error) {
-                        onSendFailure();
-                    }
-                }) {
+
+        mastodonAPI.createStatus(content, inReplyToId, spoilerText, visibility, sensitive, mediaIds).enqueue(new Callback<Status>() {
             @Override
-            public Map<String, String> getHeaders() throws AuthFailureError {
-                Map<String, String> headers = new HashMap<>();
-                headers.put("Authorization", "Bearer " + accessToken);
-                return headers;
+            public void onResponse(Call<Status> call, retrofit2.Response<Status> response) {
+                onSendSuccess();
             }
-        };
-        VolleySingleton.getInstance(this).addToRequestQueue(request);
+
+            @Override
+            public void onFailure(Call<Status> call, Throwable t) {
+                onSendFailure();
+            }
+        });
     }
 
     private void onSendSuccess() {
-        Toast.makeText(this, getString(R.string.confirmation_send), Toast.LENGTH_SHORT).show();
+        Snackbar bar = Snackbar.make(findViewById(R.id.activity_compose), getString(R.string.confirmation_send), Snackbar.LENGTH_SHORT);
+        bar.show();
         finish();
     }
 
@@ -942,9 +924,6 @@ public class ComposeActivity extends BaseActivity {
     private void uploadMedia(final QueuedMedia item) {
         item.readyStage = QueuedMedia.ReadyStage.UPLOADING;
 
-        String endpoint = getString(R.string.endpoint_media);
-        String url = "https://" + domain + endpoint;
-
         final String mimeType = getContentResolver().getType(item.uri);
         MimeTypeMap map = MimeTypeMap.getSingleton();
         String fileExtension = map.getExtensionFromMimeType(mimeType);
@@ -954,58 +933,42 @@ public class ComposeActivity extends BaseActivity {
                 randomAlphanumericString(10),
                 fileExtension);
 
-        MultipartRequest request = new MultipartRequest(Request.Method.POST, url, null,
-                new Response.Listener<JSONObject>() {
-                    @Override
-                    public void onResponse(JSONObject response) {
-                        try {
-                            item.id = response.getString("id");
-                        } catch (JSONException e) {
-                            onUploadFailure(item);
-                            return;
-                        }
-                        waitForMediaLatch.countDown();
-                    }
-                }, new Response.ErrorListener() {
-                    @Override
-                    public void onErrorResponse(VolleyError error) {
-                        onUploadFailure(item);
-                    }
-                }) {
+        byte[] content = item.content;
+
+        if (content == null) {
+            InputStream stream;
+
+            try {
+                stream = getContentResolver().openInputStream(item.uri);
+            } catch (FileNotFoundException e) {
+                return;
+            }
+
+            content = inputStreamGetBytes(stream);
+            IOUtils.closeQuietly(stream);
+
+            if (content == null) {
+                return;
+            }
+        }
+
+        RequestBody requestFile = RequestBody.create(MediaType.parse(mimeType), content);
+        MultipartBody.Part body = MultipartBody.Part.createFormData("file", filename, requestFile);
+
+        item.uploadRequest = mastodonAPI.uploadMedia(body);
+
+        item.uploadRequest.enqueue(new Callback<Media>() {
             @Override
-            public Map<String, String> getHeaders() throws AuthFailureError {
-                Map<String, String> headers = new HashMap<>();
-                headers.put("Authorization", "Bearer " + accessToken);
-                return headers;
+            public void onResponse(Call<Media> call, retrofit2.Response<Media> response) {
+                item.id = response.body().id;
+                waitForMediaLatch.countDown();
             }
 
             @Override
-            public DataItem getData() {
-                byte[] content = item.content;
-                if (content == null) {
-                    InputStream stream;
-                    try {
-                        stream = getContentResolver().openInputStream(item.uri);
-                    } catch (FileNotFoundException e) {
-                        return null;
-                    }
-                    content = inputStreamGetBytes(stream);
-                    IOUtils.closeQuietly(stream);
-                    if (content == null) {
-                        return null;
-                    }
-                }
-                DataItem data = new DataItem();
-                data.name = "file";
-                data.filename = filename;
-                data.mimeType = mimeType;
-                data.content = content;
-                return data;
+            public void onFailure(Call<Media> call, Throwable t) {
+                onUploadFailure(item);
             }
-        };
-        request.setTag(TAG);
-        item.uploadRequest = request;
-        VolleySingleton.getInstance(this).addToRequestQueue(request);
+        });
     }
 
     private void onUploadFailure(QueuedMedia item) {
diff --git a/app/src/main/java/com/keylesspalace/tusky/MainActivity.java b/app/src/main/java/com/keylesspalace/tusky/MainActivity.java
index 3fb5b3382..37f8e7bc0 100644
--- a/app/src/main/java/com/keylesspalace/tusky/MainActivity.java
+++ b/app/src/main/java/com/keylesspalace/tusky/MainActivity.java
@@ -41,6 +41,7 @@ import com.android.volley.Request;
 import com.android.volley.Response;
 import com.android.volley.VolleyError;
 import com.android.volley.toolbox.JsonObjectRequest;
+import com.keylesspalace.tusky.entity.Account;
 
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -49,6 +50,9 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Stack;
 
+import retrofit2.Call;
+import retrofit2.Callback;
+
 public class MainActivity extends BaseActivity {
     private static final String TAG = "MainActivity"; // logging tag and Volley request tag
 
@@ -148,47 +152,23 @@ public class MainActivity extends BaseActivity {
     private void fetchUserInfo() {
         SharedPreferences preferences = getSharedPreferences(
                 getString(R.string.preferences_file_key), Context.MODE_PRIVATE);
-        String domain = preferences.getString("domain", null);
-        final String accessToken = preferences.getString("accessToken", null);
         String id = preferences.getString("loggedInAccountId", null);
         String username = preferences.getString("loggedInAccountUsername", null);
         if (id != null && username != null) {
             loggedInAccountId = id;
             loggedInAccountUsername = username;
         } else {
-            String endpoint = getString(R.string.endpoint_verify_credentials);
-            String url = "https://" + domain + endpoint;
-            JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null,
-                    new Response.Listener<JSONObject>() {
-                        @Override
-                        public void onResponse(JSONObject response) {
-                            String username;
-                            String id;
-                            try {
-                                id = response.getString("id");
-                                username = response.getString("acct");
-                            } catch (JSONException e) {
-                                onFetchUserInfoFailure(e);
-                                return;
-                            }
-                            onFetchUserInfoSuccess(id, username);
-                        }
-                    },
-                    new Response.ErrorListener() {
-                        @Override
-                        public void onErrorResponse(VolleyError error) {
-                            onFetchUserInfoFailure(error);
-                        }
-                    }) {
+            mastodonAPI.accountVerifyCredentials().enqueue(new Callback<Account>() {
                 @Override
-                public Map<String, String> getHeaders() throws AuthFailureError {
-                    Map<String, String> headers = new HashMap<>();
-                    headers.put("Authorization", "Bearer " + accessToken);
-                    return headers;
+                public void onResponse(Call<Account> call, retrofit2.Response<Account> response) {
+                    onFetchUserInfoSuccess(response.body().id, response.body().username);
                 }
-            };
-            request.setTag(TAG);
-            VolleySingleton.getInstance(this).addToRequestQueue(request);
+
+                @Override
+                public void onFailure(Call<Account> call, Throwable t) {
+                    onFetchUserInfoFailure((Exception) t);
+                }
+            });
         }
     }
 
diff --git a/app/src/main/java/com/keylesspalace/tusky/MastodonAPI.java b/app/src/main/java/com/keylesspalace/tusky/MastodonAPI.java
index 9bcf70572..66019ad1f 100644
--- a/app/src/main/java/com/keylesspalace/tusky/MastodonAPI.java
+++ b/app/src/main/java/com/keylesspalace/tusky/MastodonAPI.java
@@ -9,6 +9,7 @@ import com.keylesspalace.tusky.entity.StatusContext;
 
 import java.util.List;
 
+import okhttp3.MultipartBody;
 import okhttp3.RequestBody;
 import okhttp3.ResponseBody;
 import retrofit2.Call;
@@ -54,7 +55,7 @@ public interface MastodonAPI {
 
     @Multipart
     @POST("api/v1/media")
-    Call<Media> uploadMedia(@Part("file") RequestBody file);
+    Call<Media> uploadMedia(@Part("file") MultipartBody.Part file);
 
     @FormUrlEncoded
     @POST("api/v1/statuses")
@@ -162,4 +163,8 @@ public interface MastodonAPI {
     Call<Relationship> authorizeFollowRequest(@Path("id") String accountId);
     @POST("api/v1/follow_requests/{id}/reject")
     Call<Relationship> rejectFollowRequest(@Path("id") String accountId);
+
+    @FormUrlEncoded
+    @POST("api/v1/reports")
+    Call<ResponseBody> report(@Field("account_id") String accountId, @Field("status_ids[]") List<String> statusIds, @Field("comment") String comment);
 }
diff --git a/app/src/main/java/com/keylesspalace/tusky/ReportActivity.java b/app/src/main/java/com/keylesspalace/tusky/ReportActivity.java
index 34aa86948..3c13570ad 100644
--- a/app/src/main/java/com/keylesspalace/tusky/ReportActivity.java
+++ b/app/src/main/java/com/keylesspalace/tusky/ReportActivity.java
@@ -45,10 +45,12 @@ import org.json.JSONException;
 import org.json.JSONObject;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import okhttp3.ResponseBody;
 import retrofit2.Call;
 import retrofit2.Callback;
 
@@ -145,45 +147,22 @@ public class ReportActivity extends BaseActivity {
 
     private void sendReport(final String accountId, final String[] statusIds,
             final String comment) {
-        JSONObject parameters = new JSONObject();
-        try {
-            parameters.put("account_id", accountId);
-            parameters.put("status_ids", makeStringArrayCompat(statusIds));
-            parameters.put("comment", comment);
-        } catch (JSONException e) {
-            Log.e(TAG, "Not all the report parameters have been properly set. " + e.getMessage());
-            onSendFailure(accountId, statusIds, comment);
-            return;
-        }
-        String endpoint = getString(R.string.endpoint_reports);
-        String url = "https://" + domain + endpoint;
-        JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, url, parameters,
-                new Response.Listener<JSONObject>() {
-                    @Override
-                    public void onResponse(JSONObject response) {
-                        onSendSuccess();
-                    }
-                },
-                new Response.ErrorListener() {
-                    @Override
-                    public void onErrorResponse(VolleyError error) {
-                        onSendFailure(accountId, statusIds, comment);
-                    }
-                }) {
+        mastodonAPI.report(accountId, Arrays.asList(statusIds), comment).enqueue(new Callback<ResponseBody>() {
             @Override
-            public Map<String, String> getHeaders() throws AuthFailureError {
-                Map<String, String> headers = new HashMap<>();
-                headers.put("Authorization", "Bearer " + accessToken);
-                return headers;
+            public void onResponse(Call<ResponseBody> call, retrofit2.Response<ResponseBody> response) {
+                onSendSuccess();
             }
-        };
-        request.setTag(TAG);
-        VolleySingleton.getInstance(this).addToRequestQueue(request);
+
+            @Override
+            public void onFailure(Call<ResponseBody> call, Throwable t) {
+                onSendFailure(accountId, statusIds, comment);
+            }
+        });
     }
 
     private void onSendSuccess() {
-        Toast.makeText(this, getString(R.string.confirmation_reported), Toast.LENGTH_SHORT)
-                .show();
+        Snackbar bar = Snackbar.make(anyView, getString(R.string.confirmation_reported), Snackbar.LENGTH_SHORT);
+        bar.show();
         finish();
     }
 
diff --git a/app/src/main/java/com/keylesspalace/tusky/SFragment.java b/app/src/main/java/com/keylesspalace/tusky/SFragment.java
index 7d4feda3b..e95d04cf2 100644
--- a/app/src/main/java/com/keylesspalace/tusky/SFragment.java
+++ b/app/src/main/java/com/keylesspalace/tusky/SFragment.java
@@ -33,6 +33,7 @@ import com.android.volley.Request;
 import com.android.volley.Response;
 import com.android.volley.VolleyError;
 import com.android.volley.toolbox.JsonObjectRequest;
+import com.keylesspalace.tusky.entity.Relationship;
 import com.keylesspalace.tusky.entity.Status;
 
 import org.json.JSONObject;
@@ -42,6 +43,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import okhttp3.ResponseBody;
 import retrofit2.Call;
 import retrofit2.Callback;
 
@@ -144,15 +146,45 @@ public class SFragment extends Fragment {
     }
 
     protected void follow(String id) {
-        api.followAccount(id).enqueue(null);
+        api.followAccount(id).enqueue(new Callback<Relationship>() {
+            @Override
+            public void onResponse(Call<Relationship> call, retrofit2.Response<Relationship> response) {
+
+            }
+
+            @Override
+            public void onFailure(Call<Relationship> call, Throwable t) {
+
+            }
+        });
     }
 
     private void block(String id) {
-        api.blockAccount(id).enqueue(null);
+        api.blockAccount(id).enqueue(new Callback<Relationship>() {
+            @Override
+            public void onResponse(Call<Relationship> call, retrofit2.Response<Relationship> response) {
+
+            }
+
+            @Override
+            public void onFailure(Call<Relationship> call, Throwable t) {
+
+            }
+        });
     }
 
     private void delete(String id) {
-        api.deleteStatus(id).enqueue(null);
+        api.deleteStatus(id).enqueue(new Callback<ResponseBody>() {
+            @Override
+            public void onResponse(Call<ResponseBody> call, retrofit2.Response<ResponseBody> response) {
+
+            }
+
+            @Override
+            public void onFailure(Call<ResponseBody> call, Throwable t) {
+
+            }
+        });
     }
 
     protected void more(Status status, View view, final AdapterItemRemover adapter,
diff --git a/app/src/main/java/com/keylesspalace/tusky/SpannedTypeAdapter.java b/app/src/main/java/com/keylesspalace/tusky/SpannedTypeAdapter.java
index 1ef4db1c3..d1e2addaf 100644
--- a/app/src/main/java/com/keylesspalace/tusky/SpannedTypeAdapter.java
+++ b/app/src/main/java/com/keylesspalace/tusky/SpannedTypeAdapter.java
@@ -2,6 +2,7 @@ package com.keylesspalace.tusky;
 
 import android.text.Spanned;
 
+import com.emojione.Emojione;
 import com.google.gson.JsonDeserializationContext;
 import com.google.gson.JsonDeserializer;
 import com.google.gson.JsonElement;
@@ -12,6 +13,6 @@ import java.lang.reflect.Type;
 class SpannedTypeAdapter implements JsonDeserializer<Spanned> {
     @Override
     public Spanned deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
-        return HtmlUtils.fromHtml(json.getAsString());
+        return HtmlUtils.fromHtml(Emojione.shortnameToUnicode(json.getAsString(), false));
     }
 }