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grpc-node
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murgatroid99 2015-10-07 13:53:58 -07:00
parent 0aa27c5a00 697fd0b69a
commit fced2ef963
15 changed files with 6 additions and 415 deletions
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16
bin/README.md
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# Command Line Tools
# Service Packager
The command line tool `bin/service_packager`, when called with the following command line:
```bash
service_packager proto_file -o output_path -n name -v version [-i input_path...]
```
Populates `output_path` with a node package consisting of a `package.json` populated with `name` and `version`, an `index.js`, a `LICENSE` file copied from gRPC, and a `service.json`, which is compiled from `proto_file` and the given `input_path`s. `require('output_path')` returns an object that is equivalent to
```js
{ client: require('grpc').load('service.json'),
auth: require('google-auth-library') }
```

2
bin/service_packager
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#!/usr/bin/env node
require(__dirname+'/../cli/service_packager.js').main(process.argv.slice(2));

142
cli/service_packager.js
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/*
*
* 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.
*
*/
'use strict';
var fs = require('fs');
var path = require('path');
var _ = require('lodash');
var async = require('async');
var pbjs = require('protobufjs/cli/pbjs');
var parseArgs = require('minimist');
var Mustache = require('mustache');
var package_json = require('../package.json');
var template_path = path.resolve(__dirname, 'service_packager');
var package_tpl_path = path.join(template_path, 'package.json.template');
var arg_format = {
string: ['include', 'out', 'name', 'version'],
alias: {
include: 'i',
out: 'o',
name: 'n',
version: 'v'
}
};
// TODO(mlumish): autogenerate README.md from proto file
/**
* Render package.json file from template using provided parameters.
* @param {Object} params Map of parameter names to values
* @param {function(Error, string)} callback Callback to pass rendered template
* text to
*/
function generatePackage(params, callback) {
fs.readFile(package_tpl_path, {encoding: 'utf-8'}, function(err, template) {
if (err) {
callback(err);
} else {
var rendered = Mustache.render(template, params);
callback(null, rendered);
}
});
}
/**
* Copy a file
* @param {string} src_path The filepath to copy from
* @param {string} dest_path The filepath to copy to
*/
function copyFile(src_path, dest_path) {
fs.createReadStream(src_path).pipe(fs.createWriteStream(dest_path));
}
/**
* Run the script. Copies the index.js and LICENSE files to the output path,
* renders the package.json template to the output path, and generates a
* service.json file from the input proto files using pbjs. The arguments are
* taken directly from the command line, and handled as follows:
* -i (--include) : An include path for pbjs (can be dpulicated)
* -o (--output): The output path
* -n (--name): The name of the package
* -v (--version): The package version
* @param {Array} argv The argument vector
*/
function main(argv) {
var args = parseArgs(argv, arg_format);
var out_path = path.resolve(args.out);
var include_dirs = [];
if (args.include) {
include_dirs = _.map(_.flatten([args.include]), function(p) {
return path.resolve(p);
});
}
args.grpc_version = package_json.version;
generatePackage(args, function(err, rendered) {
if (err) throw err;
fs.writeFile(path.join(out_path, 'package.json'), rendered, function(err) {
if (err) throw err;
});
});
copyFile(path.join(template_path, 'index.js'),
path.join(out_path, 'index.js'));
copyFile(path.join(__dirname, '..', 'LICENSE'),
path.join(out_path, 'LICENSE'));
var service_stream = fs.createWriteStream(path.join(out_path,
'service.json'));
var pbjs_args = _.flatten(['node', 'pbjs',
args._[0],
'-legacy',
_.map(include_dirs, function(dir) {
return "-path=" + dir;
})]);
var old_stdout = process.stdout;
process.__defineGetter__('stdout', function() {
return service_stream;
});
var pbjs_status = pbjs.main(pbjs_args);
process.__defineGetter__('stdout', function() {
return old_stdout;
});
if (pbjs_status !== pbjs.STATUS_OK) {
throw new Error('pbjs failed with status code ' + pbjs_status);
}
}
exports.main = main;

36
cli/service_packager/index.js
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/*
*
* 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('grpc');
exports.client = grpc.load(__dirname + '/service.json', 'json');
exports.auth = require('google-auth-library');

17
cli/service_packager/package.json.template
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{
"name": "{{{name}}}",
"version": "{{{version}}}",
"author": "Google Inc.",
"description": "Client library for {{{name}}} built on gRPC",
"license": "Apache-2.0",
"dependencies": {
"grpc": "{{{grpc_version}}}",
"google-auth-library": "^0.9.2"
},
"main": "index.js",
"files": [
"LICENSE",
"index.js",
"service.json"
]
}

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examples/stock.proto
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// 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;
// Protocol type definitions
message StockRequest {
string symbol = 1;
int32 num_trades_to_watch = 2;
}
message StockReply {
float price = 1;
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) {
}
}

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examples/stock_client.js
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/*
*
* 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,
* grpc.credentials.createInsecure());
* stockClient.getLastTradePrice({symbol: 'GOOG'}, function(error, response) {
* console.log(error || response);
* });
*/
module.exports = examples.Stock;

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examples/stock_server.js
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/*
*
* 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.
*
*/
'use strict';
var _ = require('lodash');
var grpc = require('..');
var examples = grpc.load(__dirname + '/stock.proto').examples;
function getLastTradePrice(call, callback) {
callback(null, {symbol: call.request.symbol, 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 grpc.Server();
stockServer.addProtoService(examples.Stock.service, {
getLastTradePrice: getLastTradePrice,
getLastTradePriceMultiple: getLastTradePriceMultiple,
watchFutureTrades: watchFutureTrades,
getHighestTradePrice: getHighestTradePrice
});
if (require.main === module) {
stockServer.bind('0.0.0.0:50051', grpc.ServerCredentials.createInsecure());
stockServer.start();
}
module.exports = stockServer;

0
examples/perf_test.js → performance/perf_test.js
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0
examples/qps_test.js → performance/qps_test.js
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4
test/async_test.js
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@ -36,7 +36,7 @@
var assert = require('assert');
var grpc = require('..');
var math = grpc.load(__dirname + '/../examples/math.proto').math;
var math = grpc.load(__dirname + '/math/math.proto').math;
/**
@ -47,7 +47,7 @@ var math_client;
/**
* Server to test against
*/
var getServer = require('../examples/math_server.js');
var getServer = require('./math/math_server.js');
var server = getServer();

0
examples/math.proto → test/math/math.proto
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2
examples/math_server.js → test/math/math_server.js
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'use strict';
var grpc = require('..');
var grpc = require('../..');
var math = grpc.load(__dirname + '/math.proto').math;
/**

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test/math_client_test.js
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var assert = require('assert');
var grpc = require('..');
var math = grpc.load(__dirname + '/../examples/math.proto').math;
var math = grpc.load(__dirname + '/math/math.proto').math;
/**
* Client to use to make requests to a running server.
@ -46,7 +46,7 @@ var math_client;
/**
* Server to test against
*/
var getServer = require('../examples/math_server.js');
var getServer = require('./math/math_server.js');
var server = getServer();

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test/surface_test.js
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@ -41,7 +41,7 @@ var ProtoBuf = require('protobufjs');
var grpc = require('..');
var math_proto = ProtoBuf.loadProtoFile(__dirname + '/../examples/math.proto');
var math_proto = ProtoBuf.loadProtoFile(__dirname + '/math/math.proto');
var mathService = math_proto.lookup('math.Math');