diff --git a/package.json b/package.json
index 2abfa69df..e222d24cb 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,8 @@
     "events-intercept": "^2.0.0",
     "extend": "^3.0.1",
     "google-auth-library": "^2.0.0",
-    "google-gax": "^0.22.0",
+    "google-gax": "^0.22.1",
+    "grpc-gcp": "^0.1.0",
     "is": "^3.2.1",
     "lodash.merge": "^4.6.1",
     "lodash.snakecase": "^4.1.1",
diff --git a/src/v1/spanner_client.js b/src/v1/spanner_client.js
index e1dce389e..a4feaab17 100644
--- a/src/v1/spanner_client.js
+++ b/src/v1/spanner_client.js
@@ -21,6 +21,10 @@ const path = require('path');
 
 const VERSION = require('../../../package.json').version;
 
+const grpcGcp = require('grpc-gcp');
+const fs = require('fs');
+const GRPC_CONFIG_FILE = __dirname + '/spanner_grpc_config.json';
+
 /**
  * Cloud Spanner API
  *
@@ -144,6 +148,15 @@ class SpannerClient {
     // merely providing the destination and request information.
     this._innerApiCalls = {};
 
+    const apiConfig = grpcGcp.createGcpApiConfig(
+      JSON.parse(fs.readFileSync(GRPC_CONFIG_FILE))
+    );
+
+    opts['grpc_gcp.channelFactoryOverride'] = grpcGcp.gcpChannelFactoryOverride;
+    opts['grpc_gcp.callInvocationTransformer'] =
+      grpcGcp.gcpCallInvocationTransformer;
+    opts['grpc_gcp.gcpApiConfig'] = apiConfig;
+
     // Put together the "service stub" for
     // google.spanner.v1.Spanner.
     const spannerStub = gaxGrpc.createStub(
diff --git a/src/v1/spanner_grpc_config.json b/src/v1/spanner_grpc_config.json
new file mode 100644
index 000000000..04f31a245
--- /dev/null
+++ b/src/v1/spanner_grpc_config.json
@@ -0,0 +1,92 @@
+{
+	"channelPool": {
+		"maxSize": 10,
+		"maxConcurrentStreamsLowWatermark": 100
+	},
+	"method": [
+		{
+			"name": [ "/google.spanner.v1.Spanner/CreateSession" ],
+			"affinity": {
+				"command": "BIND",
+				"affinityKey": "name"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/GetSession" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "name"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/DeleteSession" ],
+			"affinity": {
+				"command": "UNBIND",
+				"affinityKey": "name"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/ExecuteSql" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/ExecuteStreamingSql" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/Read" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/StreamingRead" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/BeginTransaction" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/Commit" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/Rollback" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/PartitionQuery" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		},
+		{
+			"name": [ "/google.spanner.v1.Spanner/PartitionRead" ],
+			"affinity": {
+				"command": "BOUND",
+				"affinityKey": "session"
+			}
+		}
+	]
+}