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Rewrite Node greeter example to use generated code

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pull/5445/head
murgatroid99 9 years ago
parent d2ee81fcd4
commit 4c8f8d89e7
5 changed files with 395 additions and 13 deletions
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  1. 22
      examples/node/greeter_client.js
  2. 12
      examples/node/greeter_server.js
  3. 39
      examples/node/helloworld_grpc_pb.js
  4. 332
      examples/node/helloworld_pb.js
  5. 3
      examples/node/package.json

22
examples/node/greeter_client.js
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@ -31,22 +31,30 @@
*
*/
var PROTO_PATH = __dirname + '/../protos/helloworld.proto';
var grpc = require('grpc');
var hello_proto = grpc.load(PROTO_PATH).helloworld;
var hello_messages = require('./helloworld_pb');
var hello_service = require('./helloworld_grpc_pb');
function main() {
var client = new hello_proto.Greeter('localhost:50051',
grpc.credentials.createInsecure());
var client = new hello_service.GreeterClient('localhost:50051',
grpc.credentials.createInsecure());
var user;
if (process.argv.length >= 3) {
user = process.argv[2];
} else {
user = 'world';
}
client.sayHello({name: user}, function(err, response) {
console.log('Greeting:', response.message);
var request = new hello_messages.HelloRequest();
request.setName(user);
client.sayHello(request, function(err, response) {
if (err) {
debugger;
throw err;
}
console.log('Greeting:', response.getMessage());
});
}

12
examples/node/greeter_server.js
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@ -31,16 +31,18 @@
*
*/
var PROTO_PATH = __dirname + '/../protos/helloworld.proto';
var grpc = require('grpc');
var hello_proto = grpc.load(PROTO_PATH).helloworld;
var hello_messages = require('./helloworld_pb');
var hello_service = require('./helloworld_grpc_pb');
/**
* Implements the SayHello RPC method.
*/
function sayHello(call, callback) {
callback(null, {message: 'Hello ' + call.request.name});
var reply = new hello_messages.HelloReply();
reply.setMessage("Hello " + call.request.getName());
callback(null, reply);
}
/**
@ -49,7 +51,7 @@ function sayHello(call, callback) {
*/
function main() {
var server = new grpc.Server();
server.addProtoService(hello_proto.Greeter.service, {sayHello: sayHello});
server.addService(hello_service.GreeterService, {sayHello: sayHello});
server.bind('0.0.0.0:50051', grpc.ServerCredentials.createInsecure());
server.start();
}

39
examples/node/helloworld_grpc_pb.js
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@ -0,0 +1,39 @@
// GENERATED CODE -- DO NOT EDIT!
var grpc = require('grpc');
var helloworld_pb = require('./helloworld_pb.js');
function serialize_HelloReply(arg) {
if (!(arg instanceof helloworld_pb.HelloReply)) {
throw new Error('Expected argument of type HelloReply');
}
return new Buffer(arg.serializeBinary());
}
function deserialize_HelloReply(buffer_arg) {
return helloworld_pb.HelloReply.deserializeBinary(new Uint8Array(buffer_arg));
}
function serialize_HelloRequest(arg) {
if (!(arg instanceof helloworld_pb.HelloRequest)) {
throw new Error('Expected argument of type HelloRequest');
}
return new Buffer(arg.serializeBinary());
}
function deserialize_HelloRequest(buffer_arg) {
return helloworld_pb.HelloRequest.deserializeBinary(new Uint8Array(buffer_arg));
}
var GreeterService = exports.GreeterService = {
sayHello: {
path: '/helloworld.Greeter/SayHello',
requestStream: false,
responseStream: false,
requestType: helloworld_pb.HelloRequest,
responseType: helloworld_pb.HelloReply,
requestSerialize: serialize_HelloRequest,
requestDeserialize: deserialize_HelloRequest,
responseSerialize: serialize_HelloReply,
responseDeserialize: deserialize_HelloReply,
},
};
exports.GreeterClient = grpc.makeGenericClientConstructor(GreeterService);

332
examples/node/helloworld_pb.js
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@ -0,0 +1,332 @@
/**
* @fileoverview
* @enhanceable
* @public
*/
// GENERATED CODE -- DO NOT EDIT!
var jspb = require('google-protobuf');
var goog = jspb;
var global = Function('return this')();
goog.exportSymbol('proto.helloworld.HelloReply', null, global);
goog.exportSymbol('proto.helloworld.HelloRequest', null, global);
/**
* Generated by JsPbCodeGenerator.
* @param {Array=} opt_data Optional initial data array, typically from a
* server response, or constructed directly in Javascript. The array is used
* in place and becomes part of the constructed object. It is not cloned.
* If no data is provided, the constructed object will be empty, but still
* valid.
* @extends {jspb.Message}
* @constructor
*/
proto.helloworld.HelloRequest = function(opt_data) {
jspb.Message.initialize(this, opt_data, 0, -1, null, null);
};
goog.inherits(proto.helloworld.HelloRequest, jspb.Message);
if (goog.DEBUG && !COMPILED) {
proto.helloworld.HelloRequest.displayName = 'proto.helloworld.HelloRequest';
}
if (jspb.Message.GENERATE_TO_OBJECT) {
/**
* Creates an object representation of this proto suitable for use in Soy templates.
* Field names that are reserved in JavaScript and will be renamed to pb_name.
* To access a reserved field use, foo.pb_<name>, eg, foo.pb_default.
* For the list of reserved names please see:
* com.google.apps.jspb.JsClassTemplate.JS_RESERVED_WORDS.
* @param {boolean=} opt_includeInstance Whether to include the JSPB instance
* for transitional soy proto support: http://goto/soy-param-migration
* @return {!Object}
*/
proto.helloworld.HelloRequest.prototype.toObject = function(opt_includeInstance) {
return proto.helloworld.HelloRequest.toObject(opt_includeInstance, this);
};
/**
* Static version of the {@see toObject} method.
* @param {boolean|undefined} includeInstance Whether to include the JSPB
* instance for transitional soy proto support:
* http://goto/soy-param-migration
* @param {!proto.helloworld.HelloRequest} msg The msg instance to transform.
* @return {!Object}
*/
proto.helloworld.HelloRequest.toObject = function(includeInstance, msg) {
var f, obj = {
name: msg.getName()
};
if (includeInstance) {
obj.$jspbMessageInstance = msg
}
return obj;
};
}
/**
* Deserializes binary data (in protobuf wire format).
* @param {jspb.ByteSource} bytes The bytes to deserialize.
* @return {!proto.helloworld.HelloRequest}
*/
proto.helloworld.HelloRequest.deserializeBinary = function(bytes) {
var reader = new jspb.BinaryReader(bytes);
var msg = new proto.helloworld.HelloRequest;
return proto.helloworld.HelloRequest.deserializeBinaryFromReader(msg, reader);
};
/**
* Deserializes binary data (in protobuf wire format) from the
* given reader into the given message object.
* @param {!proto.helloworld.HelloRequest} msg The message object to deserialize into.
* @param {!jspb.BinaryReader} reader The BinaryReader to use.
* @return {!proto.helloworld.HelloRequest}
*/
proto.helloworld.HelloRequest.deserializeBinaryFromReader = function(msg, reader) {
while (reader.nextField()) {
if (reader.isEndGroup()) {
break;
}
var field = reader.getFieldNumber();
switch (field) {
case 1:
var value = /** @type {string} */ (reader.readString());
msg.setName(value);
break;
default:
reader.skipField();
break;
}
}
return msg;
};
/**
* Class method variant: serializes the given message to binary data
* (in protobuf wire format), writing to the given BinaryWriter.
* @param {!proto.helloworld.HelloRequest} message
* @param {!jspb.BinaryWriter} writer
*/
proto.helloworld.HelloRequest.serializeBinaryToWriter = function(message, writer) {
message.serializeBinaryToWriter(writer);
};
/**
* Serializes the message to binary data (in protobuf wire format).
* @return {!Uint8Array}
*/
proto.helloworld.HelloRequest.prototype.serializeBinary = function() {
var writer = new jspb.BinaryWriter();
this.serializeBinaryToWriter(writer);
return writer.getResultBuffer();
};
/**
* Serializes the message to binary data (in protobuf wire format),
* writing to the given BinaryWriter.
* @param {!jspb.BinaryWriter} writer
*/
proto.helloworld.HelloRequest.prototype.serializeBinaryToWriter = function (writer) {
var f = undefined;
f = this.getName();
if (f.length > 0) {
writer.writeString(
1,
f
);
}
};
/**
* Creates a deep clone of this proto. No data is shared with the original.
* @return {!proto.helloworld.HelloRequest} The clone.
*/
proto.helloworld.HelloRequest.prototype.cloneMessage = function() {
return /** @type {!proto.helloworld.HelloRequest} */ (jspb.Message.cloneMessage(this));
};
/**
* optional string name = 1;
* @return {string}
*/
proto.helloworld.HelloRequest.prototype.getName = function() {
return /** @type {string} */ (jspb.Message.getFieldProto3(this, 1, ""));
};
/** @param {string} value */
proto.helloworld.HelloRequest.prototype.setName = function(value) {
jspb.Message.setField(this, 1, value);
};
/**
* Generated by JsPbCodeGenerator.
* @param {Array=} opt_data Optional initial data array, typically from a
* server response, or constructed directly in Javascript. The array is used
* in place and becomes part of the constructed object. It is not cloned.
* If no data is provided, the constructed object will be empty, but still
* valid.
* @extends {jspb.Message}
* @constructor
*/
proto.helloworld.HelloReply = function(opt_data) {
jspb.Message.initialize(this, opt_data, 0, -1, null, null);
};
goog.inherits(proto.helloworld.HelloReply, jspb.Message);
if (goog.DEBUG && !COMPILED) {
proto.helloworld.HelloReply.displayName = 'proto.helloworld.HelloReply';
}
if (jspb.Message.GENERATE_TO_OBJECT) {
/**
* Creates an object representation of this proto suitable for use in Soy templates.
* Field names that are reserved in JavaScript and will be renamed to pb_name.
* To access a reserved field use, foo.pb_<name>, eg, foo.pb_default.
* For the list of reserved names please see:
* com.google.apps.jspb.JsClassTemplate.JS_RESERVED_WORDS.
* @param {boolean=} opt_includeInstance Whether to include the JSPB instance
* for transitional soy proto support: http://goto/soy-param-migration
* @return {!Object}
*/
proto.helloworld.HelloReply.prototype.toObject = function(opt_includeInstance) {
return proto.helloworld.HelloReply.toObject(opt_includeInstance, this);
};
/**
* Static version of the {@see toObject} method.
* @param {boolean|undefined} includeInstance Whether to include the JSPB
* instance for transitional soy proto support:
* http://goto/soy-param-migration
* @param {!proto.helloworld.HelloReply} msg The msg instance to transform.
* @return {!Object}
*/
proto.helloworld.HelloReply.toObject = function(includeInstance, msg) {
var f, obj = {
message: msg.getMessage()
};
if (includeInstance) {
obj.$jspbMessageInstance = msg
}
return obj;
};
}
/**
* Deserializes binary data (in protobuf wire format).
* @param {jspb.ByteSource} bytes The bytes to deserialize.
* @return {!proto.helloworld.HelloReply}
*/
proto.helloworld.HelloReply.deserializeBinary = function(bytes) {
var reader = new jspb.BinaryReader(bytes);
var msg = new proto.helloworld.HelloReply;
return proto.helloworld.HelloReply.deserializeBinaryFromReader(msg, reader);
};
/**
* Deserializes binary data (in protobuf wire format) from the
* given reader into the given message object.
* @param {!proto.helloworld.HelloReply} msg The message object to deserialize into.
* @param {!jspb.BinaryReader} reader The BinaryReader to use.
* @return {!proto.helloworld.HelloReply}
*/
proto.helloworld.HelloReply.deserializeBinaryFromReader = function(msg, reader) {
while (reader.nextField()) {
if (reader.isEndGroup()) {
break;
}
var field = reader.getFieldNumber();
switch (field) {
case 1:
var value = /** @type {string} */ (reader.readString());
msg.setMessage(value);
break;
default:
reader.skipField();
break;
}
}
return msg;
};
/**
* Class method variant: serializes the given message to binary data
* (in protobuf wire format), writing to the given BinaryWriter.
* @param {!proto.helloworld.HelloReply} message
* @param {!jspb.BinaryWriter} writer
*/
proto.helloworld.HelloReply.serializeBinaryToWriter = function(message, writer) {
message.serializeBinaryToWriter(writer);
};
/**
* Serializes the message to binary data (in protobuf wire format).
* @return {!Uint8Array}
*/
proto.helloworld.HelloReply.prototype.serializeBinary = function() {
var writer = new jspb.BinaryWriter();
this.serializeBinaryToWriter(writer);
return writer.getResultBuffer();
};
/**
* Serializes the message to binary data (in protobuf wire format),
* writing to the given BinaryWriter.
* @param {!jspb.BinaryWriter} writer
*/
proto.helloworld.HelloReply.prototype.serializeBinaryToWriter = function (writer) {
var f = undefined;
f = this.getMessage();
if (f.length > 0) {
writer.writeString(
1,
f
);
}
};
/**
* Creates a deep clone of this proto. No data is shared with the original.
* @return {!proto.helloworld.HelloReply} The clone.
*/
proto.helloworld.HelloReply.prototype.cloneMessage = function() {
return /** @type {!proto.helloworld.HelloReply} */ (jspb.Message.cloneMessage(this));
};
/**
* optional string message = 1;
* @return {string}
*/
proto.helloworld.HelloReply.prototype.getMessage = function() {
return /** @type {string} */ (jspb.Message.getFieldProto3(this, 1, ""));
};
/** @param {string} value */
proto.helloworld.HelloReply.prototype.setMessage = function(value) {
jspb.Message.setField(this, 1, value);
};
goog.object.extend(exports, proto.helloworld);

3
examples/node/package.json
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@ -2,6 +2,7 @@
"name": "grpc-examples",
"version": "0.1.0",
"dependencies": {
"grpc": "0.13.0"
"grpc": "0.13.0",
"google-protobuf": "*"
}
}

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