Add vendor folder to git

vendor/github.com/grpc-ecosystem/grpc-gateway/examples/browser/echo_service.spec.js

@@ -0,0 +1,43 @@
+'use strict';
+
+var SwaggerClient = require('swagger-client');
+
+describe('EchoService', function() {
+  var client;
+
+  beforeEach(function(done) {
+    new SwaggerClient({
+      url: "http://localhost:8080/swagger/echo_service.swagger.json",
+      usePromise: true,
+    }).then(function(c) {
+      client = c;
+      done();
+    });
+  });
+
+  describe('Echo', function() {
+    it('should echo the request back', function(done) {
+      client.EchoService.Echo(
+          {id: "foo"},
+          {responseContentType: "application/json"}
+      ).then(function(resp) {
+        expect(resp.obj).toEqual({id: "foo"});
+      }).catch(function(err) {
+        done.fail(err);
+      }).then(done);
+    });
+  });
+
+  describe('EchoBody', function() {
+    it('should echo the request back', function(done) {
+      client.EchoService.EchoBody(
+          {body: {id: "foo"}},
+          {responseContentType: "application/json"}
+      ).then(function(resp) {
+        expect(resp.obj).toEqual({id: "foo"});
+      }).catch(function(err) {
+        done.fail(err);
+      }).then(done);
+    });
+  });
+});