From d4ee297496e908345d899ae5959b6de05781133d Mon Sep 17 00:00:00 2001 From: murgatroid99 Date: Fri, 30 Jan 2015 11:00:32 -0800 Subject: [PATCH 1/2] Added stock service client and server --- src/node/examples/stock.proto | 33 ++++++++++++ src/node/examples/stock_client.js | 43 ++++++++++++++++ src/node/examples/stock_server.js | 83 +++++++++++++++++++++++++++++++ 3 files changed, 159 insertions(+) create mode 100644 src/node/examples/stock.proto create mode 100644 src/node/examples/stock_client.js create mode 100644 src/node/examples/stock_server.js diff --git a/src/node/examples/stock.proto b/src/node/examples/stock.proto new file mode 100644 index 00000000000..526b71e0219 --- /dev/null +++ b/src/node/examples/stock.proto @@ -0,0 +1,33 @@ +syntax = "proto3"; + +package examples; + +// Protocol type definitions +message StockRequest { + optional string symbol = 1; + optional int32 num_trades_to_watch = 2 [default=0]; +}; + +message StockReply { + optional float price = 1; + optional string symbol = 2; +}; + + +// Interface exported by the server +service Stock { + // Simple blocking RPC + rpc GetLastTradePrice(StockRequest) returns (StockReply) { + }; + // Bidirectional streaming RPC + rpc GetLastTradePriceMultiple(stream StockRequest) returns + (stream StockReply) { + }; + // Unidirectional server-to-client streaming RPC + rpc WatchFutureTrades(StockRequest) returns (stream StockReply) { + }; + // Unidirectional client-to-server streaming RPC + rpc GetHighestTradePrice(stream StockRequest) returns (StockReply) { + }; + +}; \ No newline at end of file diff --git a/src/node/examples/stock_client.js b/src/node/examples/stock_client.js new file mode 100644 index 00000000000..8e99090f350 --- /dev/null +++ b/src/node/examples/stock_client.js @@ -0,0 +1,43 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +var grpc = require('..'); +var examples = grpc.load(__dirname + '/stock.proto').examples; + +/** + * This exports a client constructor for the Stock service. The usage looks like + * + * var StockClient = require('stock_client.js'); + * var stockClient = new StockClient(server_address); + */ +module.exports = examples.Stock; diff --git a/src/node/examples/stock_server.js b/src/node/examples/stock_server.js new file mode 100644 index 00000000000..c188181b779 --- /dev/null +++ b/src/node/examples/stock_server.js @@ -0,0 +1,83 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +var _ = require('underscore'); +var grpc = require('..'); +var examples = grpc.load(__dirname + '/stock.proto').examples; + +var StockServer = grpc.makeServerConstructor([examples.Stock.service]); + +function getLastTradePrice(call, callback) { + callback(null, {price: 88}); +} + +function watchFutureTrades(call) { + for (var i = 0; i < call.request.num_trades_to_watch; i++) { + call.write({price: 88.00 + i * 10.00}); + } + call.end(); +} + +function getHighestTradePrice(call, callback) { + var trades = []; + call.on('data', function(data) { + trades.push({symbol: data.symbol, price: _.random(0, 100)}); + }); + call.on('end', function() { + if(_.isEmpty(trades)) { + callback(null, {}); + } else { + callback(null, _.max(trades, function(trade){return trade.price;})); + } + }); +} + +function getLastTradePriceMultiple(call) { + call.on('data', function(data) { + call.write({price: 88}); + }); + call.on('end', function() { + call.end(); + }); +} + +var stockServer = new StockServer({ + 'examples.Stock' : { + getLastTradePrice: getLastTradePrice, + getLastTradePriceMultiple: getLastTradePriceMultiple, + watchFutureTrades: watchFutureTrades, + getHighestTradePrice: getHighestTradePrice + } +}); + +exports.module = stockServer; From b65ace62fab75426ec9f6361a63bbec4fed7469b Mon Sep 17 00:00:00 2001 From: murgatroid99 Date: Fri, 30 Jan 2015 14:20:00 -0800 Subject: [PATCH 2/2] Added copyright notice to stock.proto --- src/node/examples/stock.proto | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/src/node/examples/stock.proto b/src/node/examples/stock.proto index 526b71e0219..efe98d84ffb 100644 --- a/src/node/examples/stock.proto +++ b/src/node/examples/stock.proto @@ -1,3 +1,32 @@ +// Copyright 2015, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + syntax = "proto3"; package examples;