github/JavaScriptServices
1
1
Fork 0
mirror of https://github.com/aspnet/JavaScriptServices.git synced 2025-12-24 10:40:23 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove 'express' and 'body-parser' NPM dependencies from HttpNodeInstance

Browse Source
This commit is contained in:
SteveSandersonMS
2015-11-02 14:52:45 -08:00
parent de991b9858
commit 37eb4efff0
4 changed files with 39 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
Microsoft.AspNet.NodeServices/Content/Node/entrypoint-http.js
View File

@@ -1,50 +1,55 @@
// Limit dependencies to core Node modules. This means the code in this file has to be very low-level and unattractive,
// but simplifies things for the consumer of this module.
var http = require('http');
var path = require('path');
var express = require('express');
var bodyParser = require('body-parser')
var requestedPortOrZero = parseInt(process.argv[2]) || 0; // 0 means 'let the OS decide'
autoQuitOnFileChange(process.cwd(), ['.js', '.json', '.html']);
var app = express();
app.use(bodyParser.json());
app.all('/', function (req, res) {
var resolvedPath = path.resolve(process.cwd(), req.body.moduleName);
var invokedModule = require(resolvedPath);
var func = req.body.exportedFunctionName ? invokedModule[req.body.exportedFunctionName] : invokedModule;
if (!func) {
throw new Error('The module "' + resolvedPath + '" has no export named "' + req.body.exportedFunctionName + '"');
}
var hasSentResult = false;
var callback = function(errorValue, successValue) {
if (!hasSentResult) {
hasSentResult = true;
if (errorValue) {
res.status(500).send(errorValue);
} else {
sendResult(res, successValue);
}
var server = http.createServer(function(req, res) {
readRequestBodyAsJson(req, function(bodyJson) {
var resolvedPath = path.resolve(process.cwd(), bodyJson.moduleName);
var invokedModule = require(resolvedPath);
var func = bodyJson.exportedFunctionName ? invokedModule[bodyJson.exportedFunctionName] : invokedModule;
if (!func) {
throw new Error('The module "' + resolvedPath + '" has no export named "' + bodyJson.exportedFunctionName + '"');
}
};
func.apply(null, [callback].concat(req.body.args));
var hasSentResult = false;
var callback = function(errorValue, successValue) {
if (!hasSentResult) {
hasSentResult = true;
if (errorValue) {
res.status(500).send(errorValue);
} else if (typeof successValue === 'object') {
// Arbitrary object - JSON-serialize it
res.setHeader('Content-Type', 'application/json');
res.end(JSON.stringify(successValue));
} else {
// String - can bypass JSON-serialization altogether
res.setHeader('Content-Type', 'text/plain');
res.end(successValue);
}
}
};
func.apply(null, [callback].concat(bodyJson.args));
});
});
var listener = app.listen(requestedPortOrZero, 'localhost', function () {
server.listen(requestedPortOrZero, 'localhost', function () {
// Signal to HttpNodeHost which port it should make its HTTP connections on
console.log('[Microsoft.AspNet.NodeServices.HttpNodeHost:Listening on port ' + listener.address().port + '\]');
console.log('[Microsoft.AspNet.NodeServices.HttpNodeHost:Listening on port ' + server.address().port + '\]');
// Signal to the NodeServices base class that we're ready to accept invocations
console.log('[Microsoft.AspNet.NodeServices:Listening]');
});
function sendResult(response, result) {
if (typeof result === 'object') {
response.json(result);
} else {
response.send(result);
}
function readRequestBodyAsJson(request, callback) {
var requestBodyAsString = '';
request
.on('data', function(chunk) { requestBodyAsString += chunk; })
.on('end', function() { callback(JSON.parse(requestBodyAsString)); });
}
function autoQuitOnFileChange(rootDir, extensions) {