diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 86763688..85710c16 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,9 +4,6 @@
     <list default="true" id="7b89ff1e-1260-4dcf-9c3d-345de0471ea1" name="Default" comment="">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/CHANGELOG.md" beforeDir="false" afterPath="$PROJECT_DIR$/CHANGELOG.md" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/lib/src/core/core.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/core/core.dart" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/lib/src/core/hooked_service.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/core/hooked_service.dart" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/lib/src/core/typed_service.dart" beforeDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/.tmp/" />
     <ignored path="$PROJECT_DIR$/temp/" />
@@ -32,8 +29,8 @@
       <file leaf-file-name="services_test.dart" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/test/services_test.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="125">
-              <caret line="23" column="29" lean-forward="true" selection-start-line="23" selection-start-column="29" selection-end-line="23" selection-end-column="29" />
+            <state relative-caret-position="368">
+              <caret line="23" column="29" selection-start-line="23" selection-start-column="29" selection-end-line="23" selection-end-column="29" />
               <folding>
                 <element signature="e#0#46#0" expanded="true" />
               </folding>
@@ -41,12 +38,30 @@
           </provider>
         </entry>
       </file>
+      <file leaf-file-name="hooked_test.dart" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/test/hooked_test.dart">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="416">
+              <caret line="125" column="48" lean-forward="true" selection-start-line="125" selection-start-column="48" selection-end-line="125" selection-end-column="48" />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="anonymous_service.dart" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/lib/src/core/anonymous_service.dart">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="176">
+              <caret line="13" column="2" selection-start-line="13" selection-start-column="2" selection-end-line="13" selection-end-column="2" />
+            </state>
+          </provider>
+        </entry>
+      </file>
       <file leaf-file-name="CHANGELOG.md" pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
           <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
             <state split_layout="SPLIT">
-              <first_editor relative-caret-position="64">
-                <caret line="4" column="54" selection-start-line="4" selection-start-column="54" selection-end-line="4" selection-end-column="54" />
+              <first_editor relative-caret-position="80">
+                <caret line="5" column="66" selection-start-line="5" selection-start-column="66" selection-end-line="5" selection-end-column="66" />
               </first_editor>
               <second_editor />
             </state>
@@ -68,7 +83,7 @@
       <file leaf-file-name="hooked_service.dart" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/lib/src/core/hooked_service.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="-1386">
+            <state relative-caret-position="7216">
               <caret line="459" column="46" selection-start-line="459" selection-start-column="46" selection-end-line="459" selection-end-column="46" />
             </state>
           </provider>
@@ -204,7 +219,6 @@
         <option value="$PROJECT_DIR$/lib/src/http/http_request_context.dart" />
         <option value="$PROJECT_DIR$/example/handle_error.dart" />
         <option value="$PROJECT_DIR$/example/json.dart" />
-        <option value="$PROJECT_DIR$/test/hooked_test.dart" />
         <option value="$USER_HOME$/.pub-cache/hosted/pub.dartlang.org/angel_container-1.0.0-alpha.3/lib/src/mirrors/reflector.dart" />
         <option value="$PROJECT_DIR$/lib/src/http/controller.dart" />
         <option value="$PROJECT_DIR$/lib/src/core/injection.dart" />
@@ -233,6 +247,7 @@
         <option value="$PROJECT_DIR$/test/services_test.dart" />
         <option value="$PROJECT_DIR$/lib/src/core/hooked_service.dart" />
         <option value="$PROJECT_DIR$/lib/src/core/core.dart" />
+        <option value="$PROJECT_DIR$/test/hooked_test.dart" />
         <option value="$PROJECT_DIR$/CHANGELOG.md" />
       </list>
     </option>
@@ -262,60 +277,10 @@
     <ConfirmationsSetting value="2" id="Add" />
   </component>
   <component name="ProjectView">
-    <navigator currentView="Scope" currentSubView="Project Files" proportions="" version="1">
+    <navigator proportions="" version="1">
       <foldersAlwaysOnTop value="true" />
     </navigator>
-    <panes>
-      <pane id="Scope">
-        <subPane subId="Project Files">
-          <expand>
-            <path>
-              <item name="Root" type="cbb8eebc:String" user="Root" />
-              <item name="framework" type="cbb8eebc:String" user="framework" />
-            </path>
-            <path>
-              <item name="Root" type="cbb8eebc:String" user="Root" />
-              <item name="framework" type="cbb8eebc:String" user="framework" />
-              <item name="example" type="cbb8eebc:String" user="example" />
-            </path>
-            <path>
-              <item name="Root" type="cbb8eebc:String" user="Root" />
-              <item name="framework" type="cbb8eebc:String" user="framework" />
-              <item name="lib" type="cbb8eebc:String" user="lib" />
-            </path>
-            <path>
-              <item name="Root" type="cbb8eebc:String" user="Root" />
-              <item name="framework" type="cbb8eebc:String" user="framework" />
-              <item name="lib" type="cbb8eebc:String" user="lib" />
-              <item name="src" type="cbb8eebc:String" user="src" />
-            </path>
-            <path>
-              <item name="Root" type="cbb8eebc:String" user="Root" />
-              <item name="framework" type="cbb8eebc:String" user="framework" />
-              <item name="lib" type="cbb8eebc:String" user="lib" />
-              <item name="src" type="cbb8eebc:String" user="src" />
-              <item name="core" type="cbb8eebc:String" user="core" />
-            </path>
-            <path>
-              <item name="Root" type="cbb8eebc:String" user="Root" />
-              <item name="framework" type="cbb8eebc:String" user="framework" />
-              <item name="lib" type="cbb8eebc:String" user="lib" />
-              <item name="src" type="cbb8eebc:String" user="src" />
-              <item name="http" type="cbb8eebc:String" user="http" />
-            </path>
-            <path>
-              <item name="Root" type="cbb8eebc:String" user="Root" />
-              <item name="framework" type="cbb8eebc:String" user="framework" />
-              <item name="test" type="cbb8eebc:String" user="test" />
-            </path>
-          </expand>
-          <select />
-        </subPane>
-      </pane>
-      <pane id="PackagesPane" />
-      <pane id="ProjectPane" />
-      <pane id="AndroidView" />
-    </panes>
+    <panes />
   </component>
   <component name="PropertiesComponent">
     <property name="GO_FMT" value="false" />
@@ -661,14 +626,8 @@
       <workItem from="1534793956753" duration="15012000" />
       <workItem from="1534863259966" duration="198000" />
       <workItem from="1534873119036" duration="4624000" />
-      <workItem from="1536696642254" duration="1416000" />
-    </task>
-    <task id="LOCAL-00116" summary="Remove lib/common.dart">
-      <created>1534732527424</created>
-      <option name="number" value="00116" />
-      <option name="presentableId" value="LOCAL-00116" />
-      <option name="project" value="LOCAL" />
-      <updated>1534732527424</updated>
+      <workItem from="1536696642254" duration="1497000" />
+      <workItem from="1536698151028" duration="136000" />
     </task>
     <task id="LOCAL-00117" summary="Strip out TypedService">
       <created>1534732668246</created>
@@ -1006,7 +965,14 @@
       <option name="project" value="LOCAL" />
       <updated>1536697507787</updated>
     </task>
-    <option name="localTasksCounter" value="165" />
+    <task id="LOCAL-00165" summary="Add generics to hooked service listeners">
+      <created>1536698069495</created>
+      <option name="number" value="00165" />
+      <option name="presentableId" value="LOCAL-00165" />
+      <option name="project" value="LOCAL" />
+      <updated>1536698069495</updated>
+    </task>
+    <option name="localTasksCounter" value="166" />
     <servers />
   </component>
   <component name="TestHistory">
@@ -1042,7 +1008,7 @@
     </history-entry>
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="193457000" />
+    <option name="totallyTimeSpent" value="193674000" />
   </component>
   <component name="TodoView">
     <todo-panel id="selected-file">
@@ -1086,15 +1052,15 @@
       <window_info anchor="right" id="Flutter Inspector" order="4" />
       <window_info anchor="bottom" id="DB Execution Console" order="8" />
       <window_info anchor="right" id="Coverage" order="3" side_tool="true" />
-      <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
+      <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
       <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
       <window_info id="DB Browser" order="2" weight="0.32998413" />
+      <window_info anchor="bottom" id="Messages" order="7" weight="0.33478895" />
       <window_info anchor="bottom" id="Find" order="1" weight="0.32905984" />
       <window_info anchor="right" id="Commander" internal_type="SLIDING" order="0" type="SLIDING" weight="0.4" />
-      <window_info anchor="bottom" id="Messages" order="7" weight="0.33478895" />
-      <window_info anchor="bottom" id="Message" order="0" />
       <window_info anchor="right" id="Data View" order="4" />
+      <window_info anchor="bottom" id="Message" order="0" />
     </layout>
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -1105,7 +1071,6 @@
   </component>
   <component name="VcsManagerConfiguration">
     <option name="CHECK_CODE_SMELLS_BEFORE_PROJECT_COMMIT" value="false" />
-    <MESSAGE value="Remove req.injections" />
     <MESSAGE value="Remove Angel.inject" />
     <MESSAGE value="Remove dep on package:pool" />
     <MESSAGE value="waterfall now only accepts RequestHandler" />
@@ -1130,7 +1095,8 @@
     <MESSAGE value="CHANGELOG + bump to 2.0.0-alpha.1" />
     <MESSAGE value="Add &lt;Id, Data&gt;" />
     <MESSAGE value="Added generic to Routable.use" />
-    <option name="LAST_COMMIT_MESSAGE" value="Added generic to Routable.use" />
+    <MESSAGE value="Add generics to hooked service listeners" />
+    <option name="LAST_COMMIT_MESSAGE" value="Add generics to hooked service listeners" />
   </component>
   <component name="XDebuggerManager">
     <breakpoint-manager>
@@ -1314,20 +1280,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/test/common.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="528">
-          <caret line="34" column="3" lean-forward="true" selection-start-line="34" selection-start-column="3" selection-end-line="34" selection-end-column="3" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/test/hooked_test.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="65">
-          <caret line="100" column="32" selection-start-line="100" selection-start-column="32" selection-end-line="100" selection-end-column="32" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/test/routing_test.dart">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="115">
@@ -1405,13 +1357,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/core/anonymous_service.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="112">
-          <caret line="9" column="63" lean-forward="true" selection-start-line="9" selection-start-column="63" selection-end-line="9" selection-end-column="63" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/lib/src/core/service.dart">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="54">
@@ -1422,16 +1367,11 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/core/typed_service.dart">
-      <provider selected="true" editor-type-id="text-editor" />
-    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/core/typed_service.dart" />
     <entry file="file://$PROJECT_DIR$/lib/src/core/request_context.dart">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="149">
           <caret line="29" column="28" selection-start-line="29" selection-start-column="28" selection-end-line="29" selection-end-column="28" />
-          <folding>
-            <element signature="e#47#67#0" expanded="true" />
-          </folding>
         </state>
       </provider>
     </entry>
@@ -1439,9 +1379,6 @@
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="38">
           <caret line="328" column="3" lean-forward="true" selection-start-line="328" selection-start-column="3" selection-end-line="328" selection-end-column="3" />
-          <folding>
-            <element signature="e#38#58#0" expanded="true" />
-          </folding>
         </state>
       </provider>
     </entry>
@@ -1449,9 +1386,6 @@
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="70">
           <caret line="86" column="17" selection-start-line="86" selection-start-column="17" selection-end-line="86" selection-end-column="17" />
-          <folding>
-            <element signature="e#40#60#0" expanded="true" />
-          </folding>
         </state>
       </provider>
     </entry>
@@ -1465,16 +1399,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/test/services_test.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="125">
-          <caret line="23" column="29" lean-forward="true" selection-start-line="23" selection-start-column="29" selection-end-line="23" selection-end-column="29" />
-          <folding>
-            <element signature="e#0#46#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/lib/src/core/map_service.dart">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="384">
@@ -1487,7 +1411,7 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/lib/src/core/hooked_service.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-1386">
+        <state relative-caret-position="7216">
           <caret line="459" column="46" selection-start-line="459" selection-start-column="46" selection-end-line="459" selection-end-column="46" />
         </state>
       </provider>
@@ -1502,11 +1426,42 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/test/services_test.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="368">
+          <caret line="23" column="29" selection-start-line="23" selection-start-column="29" selection-end-line="23" selection-end-column="29" />
+          <folding>
+            <element signature="e#0#46#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/test/common.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="151">
+          <caret line="31" column="27" lean-forward="true" selection-start-line="31" selection-start-column="27" selection-end-line="31" selection-end-column="27" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/test/hooked_test.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="416">
+          <caret line="125" column="48" lean-forward="true" selection-start-line="125" selection-start-column="48" selection-end-line="125" selection-end-column="48" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/core/anonymous_service.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="176">
+          <caret line="13" column="2" selection-start-line="13" selection-start-column="2" selection-end-line="13" selection-end-column="2" />
+        </state>
+      </provider>
+    </entry>
     <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
       <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
         <state split_layout="SPLIT">
-          <first_editor relative-caret-position="64">
-            <caret line="4" column="54" selection-start-line="4" selection-start-column="54" selection-end-line="4" selection-end-column="54" />
+          <first_editor relative-caret-position="80">
+            <caret line="5" column="66" selection-start-line="5" selection-start-column="66" selection-end-line="5" selection-end-column="66" />
           </first_editor>
           <second_editor />
         </state>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 98484132..140ac084 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 * `HookedService` now follows suit, and takes a third parameter, pointing to the inner service.
 * `Routable.use` now uses the generic parameters added to `Service`.
 * Added generic usage to `HookedServiceListener`, etc.
+* All service methods take `Map<String, dynamic>` as `params` now.
 
 # 2.0.0-alpha.2
 * Added `ResponseContext.detach`.
diff --git a/pubspec.yaml b/pubspec.yaml
index f41c6294..826f606e 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: angel_framework
-version: 2.0.0-alpha.2
+version: 2.0.0-alpha.3
 description: >
   A high-powered HTTP server with DI, routing and more.
   When combined with the other packages in the Angel ecosystem, this