diff --git a/src/v1/publisher_client.js b/src/v1/publisher_client.js
index 0c8982f19..cdc6c66d9 100644
--- a/src/v1/publisher_client.js
+++ b/src/v1/publisher_client.js
@@ -345,6 +345,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      name: request.name,
+    });
 
     return this._innerApiCalls.createTopic(request, options, callback);
   }
@@ -407,6 +414,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'topic.name': request.topic.name,
+    });
 
     return this._innerApiCalls.updateTopic(request, options, callback);
   }
@@ -468,6 +482,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      topic: request.topic,
+    });
 
     return this._innerApiCalls.publish(request, options, callback);
   }
@@ -515,6 +536,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      topic: request.topic,
+    });
 
     return this._innerApiCalls.getTopic(request, options, callback);
   }
@@ -610,6 +638,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      project: request.project,
+    });
 
     return this._innerApiCalls.listTopics(request, options, callback);
   }
@@ -761,6 +796,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      topic: request.topic,
+    });
 
     return this._innerApiCalls.listTopicSubscriptions(
       request,
@@ -864,6 +906,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      topic: request.topic,
+    });
 
     return this._innerApiCalls.deleteTopic(request, options, callback);
   }
@@ -925,6 +974,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      resource: request.resource,
+    });
 
     return this._innerApiCalls.setIamPolicy(request, options, callback);
   }
@@ -975,6 +1031,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      resource: request.resource,
+    });
 
     return this._innerApiCalls.getIamPolicy(request, options, callback);
   }
@@ -1035,6 +1098,13 @@ class PublisherClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      resource: request.resource,
+    });
 
     return this._innerApiCalls.testIamPermissions(request, options, callback);
   }
diff --git a/src/v1/subscriber_client.js b/src/v1/subscriber_client.js
index 7b2877ebc..0096dd0a1 100644
--- a/src/v1/subscriber_client.js
+++ b/src/v1/subscriber_client.js
@@ -424,6 +424,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      name: request.name,
+    });
 
     return this._innerApiCalls.createSubscription(request, options, callback);
   }
@@ -471,6 +478,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      subscription: request.subscription,
+    });
 
     return this._innerApiCalls.getSubscription(request, options, callback);
   }
@@ -537,6 +551,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'subscription.name': request.subscription.name,
+    });
 
     return this._innerApiCalls.updateSubscription(request, options, callback);
   }
@@ -632,6 +653,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      project: request.project,
+    });
 
     return this._innerApiCalls.listSubscriptions(request, options, callback);
   }
@@ -731,6 +759,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      subscription: request.subscription,
+    });
 
     return this._innerApiCalls.deleteSubscription(request, options, callback);
   }
@@ -792,6 +827,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      subscription: request.subscription,
+    });
 
     return this._innerApiCalls.modifyAckDeadline(request, options, callback);
   }
@@ -845,6 +887,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      subscription: request.subscription,
+    });
 
     return this._innerApiCalls.acknowledge(request, options, callback);
   }
@@ -907,6 +956,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      subscription: request.subscription,
+    });
 
     return this._innerApiCalls.pull(request, options, callback);
   }
@@ -1008,6 +1064,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      subscription: request.subscription,
+    });
 
     return this._innerApiCalls.modifyPushConfig(request, options, callback);
   }
@@ -1111,6 +1174,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      project: request.project,
+    });
 
     return this._innerApiCalls.listSnapshots(request, options, callback);
   }
@@ -1258,6 +1328,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      name: request.name,
+    });
 
     return this._innerApiCalls.createSnapshot(request, options, callback);
   }
@@ -1335,6 +1412,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'snapshot.name': request.snapshot.name,
+    });
 
     return this._innerApiCalls.updateSnapshot(request, options, callback);
   }
@@ -1386,6 +1470,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      snapshot: request.snapshot,
+    });
 
     return this._innerApiCalls.deleteSnapshot(request, options, callback);
   }
@@ -1460,6 +1551,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      subscription: request.subscription,
+    });
 
     return this._innerApiCalls.seek(request, options, callback);
   }
@@ -1521,6 +1619,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      resource: request.resource,
+    });
 
     return this._innerApiCalls.setIamPolicy(request, options, callback);
   }
@@ -1571,6 +1676,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      resource: request.resource,
+    });
 
     return this._innerApiCalls.getIamPolicy(request, options, callback);
   }
@@ -1631,6 +1743,13 @@ class SubscriberClient {
       options = {};
     }
     options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      resource: request.resource,
+    });
 
     return this._innerApiCalls.testIamPermissions(request, options, callback);
   }
diff --git a/synth.metadata b/synth.metadata
index 09817b1de..36b84ffe9 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-03-23T11:19:52.456128Z",
+  "updateTime": "2019-03-28T11:38:39.375456Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.16.19",
-        "dockerImage": "googleapis/artman@sha256:70ba28fda87e032ae44e6df41b7fc342c1b0cce1ed90658c4890eb4f613038c2"
+        "version": "0.16.20",
+        "dockerImage": "googleapis/artman@sha256:e3c054a2fb85a12481c722af616c7fb6f1d02d862248385eecbec3e4240ebd1e"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "e80435a132c53da26f46daf0787035ee63fb942b",
-        "internalRef": "239938670"
+        "sha": "6a84b3267b0a95e922608b9891219075047eee29",
+        "internalRef": "240640999"
       }
     },
     {