I have an application in nodeJs and I am trying to create a server through ISS using ISSnode. normally use 'require' to create the express server, but some libraries need to use 'import'.
import express from "express";
var app = express();
const port = process.env.PORT
app.get('/', function (req, res) {
res.send('Express is working on IISNode!');
});
app.listen(port);
I use the "type":"module" in the package.json and I also tested using the .mjs extension, however, whenever I start the server through IIS, this message occurs:
Application has thrown an uncaught exception and is terminated: Error [ERR_REQUIRE_ESM]: require() of ES Module C:\Integrations\integrationTelegram\src\index.js from C:\Program Files\iisnode\interceptor.js not supported. Instead change the require of index.js in C:\Program Files\iisnode\interceptor.js to a dynamic import() which is available in all CommonJS modules. at Object. (C:\Program Files\iisnode\interceptor.js:210:1)
(function () {
// refactor process.argv to determine the app entry point and remove the interceptor parameter
var appFile;
var newArgs = [];
process.argv.forEach(function (item, index) {
if (index === 2)
appFile = item;
if (index !== 1)
newArgs.push(item);
});
process.argv = newArgs;
// determine if logging is enabled
if (process.env.IISNODE_LOGGINGENABLED != 1) {
return;
}
var path = require('path')
, fs = require('fs');
// configuration
var maxLogSize = (process.env.IISNODE_MAXLOGFILESIZEINKB || 128) * 1024;
var maxTotalLogSize = (process.env.IISNODE_MAXTOTALLOGFILESIZEINKB || 1024) * 1024;
var maxLogFiles = (+process.env.IISNODE_MAXLOGFILES) || 20;
var relativeLogDirectory = process.env.IISNODE_logDirECTORY || 'iisnode';
// polyfill node v0.7 fs.existsSync with node v0.6 path.existsSync
var existsSync = fs.existsSync || path.existsSync;
// determine the the abosolute log file directory
var wwwroot = path.dirname(appFile);
var logDir = path.resolve(wwwroot, relativeLogDirectory);
// ensure the log directory structure exists
var ensureDir = function (dir) {
if (!existsSync(dir)) {
ensureDir(path.dirname(dir));
try {
fs.mkdirSync(dir);
}
catch (e) {
// check if directory was created in the meantime (by another process)
if (!existsSync(dir))
throw e;
}
}
};
ensureDir(logDir);
// generate index.html file
var htmlTemplate = fs.readFileSync(path.resolve(__dirname, 'logs.template.html'), 'utf8');
var indexFile = path.resolve(logDir, 'index.html');
var updateIndexHtml = function () {
var files = fs.readdirSync(logDir);
var logFiles = [];
files.forEach(function (file) {
var match = file.match(/(.+)-(\d+)-(stderr|stdout)-(\d+)\.txt$/);
if (match) {
logFiles.push({
file: file,
computername: match[1],
pid: +match[2],
type: match[3],
created: +match[4]
});
}
});
var html = htmlTemplate.replace('[]; //##LOGFILES##', JSON.stringify(logFiles)).replace('0; //##LASTUPDATED##', new Date().getTime());
try {
fs.writeFileSync(indexFile, html);
}
catch (e) {
// empty - might be a collistion with concurrent update of index.html from another process
}
};
// make best effort to purge old logs if total size or file count exceeds quota
var purgeOldLogs = function () {
var files = fs.readdirSync(logDir);
var stats = [];
var totalsize = 0;
files.forEach(function (file) {
if (file !== 'index.html') {
try {
var stat = fs.statSync(path.resolve(logDir, file));
if (stat.isFile()) {
stats.push(stat);
stat.file = file;
totalsize += stat.size;
}
}
catch (e) {
// empty - file might have been deleted by other process
}
}
});
if (totalsize > maxTotalLogSize || stats.length > maxLogFiles) {
// keep deleting files from the least recently modified to the most recently modified until
// the total size and number of log files gets within the respective quotas
stats.sort(function (a, b) {
return a.mtime.getTime() - b.mtime.getTime();
});
var totalCount = stats.length;
stats.some(function (stat) {
try {
fs.unlinkSync(path.resolve(logDir, stat.file));
totalsize -= stat.size;
totalCount--;
}
catch (e) {
// likely indicates the file is still in use; leave it alone
}
return totalsize <= maxTotalLogSize && totalCount <= maxLogFiles;
});
}
};
// intercept a stream
var intercept = function (stream, type) {
var currentLog;
var currentSize;
var currentLogCreated;
var rolloverLog = function () {
var now = new Date().getTime();
var filename = process.env.COMPUTERNAME + '-' + process.pid + '-' + type + '-' + now + '.txt';
currentLog = path.resolve(logDir, filename);
currentSize = 0;
currentLogCreated = false;
purgeOldLogs();
};
rolloverLog(); // create a new log file
var ensureBuffer = function (data, encoding) {
if (Buffer.isBuffer(data)) {
return data;
}
else {
data = data.toString().replace(/\n/g, '\r\n');
return new Buffer(data, typeof encoding === 'string' ? encoding : 'utf8');
}
};
stream.write = stream.end = function (data, encoding) {
var buffer = ensureBuffer(data, encoding);
if (currentSize > maxLogSize) {
rolloverLog();
}
if (!currentLogCreated) {
fs.writeFileSync(currentLog, '', 'utf8');
updateIndexHtml();
currentLogCreated = true;
}
var f = fs.openSync(currentLog, 'a');
currentSize += fs.writeSync(f, buffer, 0, buffer.length, currentSize);
fs.closeSync(f);
};
};
// intercept stdout and stderr
intercept(process.stdout, 'stdout');
intercept(process.stderr, 'stderr');
// install uncaughtException handler such that we can trace the unhandled exception to stderr
process.on('uncaughtException', function (e) {
// only act on the uncaught exception if the app has not registered another handler
if (1 === process.listeners('uncaughtException').length) {
console.error('Application has thrown an uncaught exception and is terminated:\n' + (e.stack || (new Error(e).stack)));
process.exit(1);
}
});
})();
// run the original application entry point
require(process.argv[1]);
is there something i'm missing?
my web.config:
<configuration>
<system.webServer>
<!-- indicates that the server.js file is a node.js application
to be handled by the iisnode module -->
<handlers>
<add name="iisnode" path="server.js" verb="*" modules="iisnode" />
</handlers>
<rewrite>
<rules>
<rule name="sendToNode">
<match url="/*" />
<action type="Rewrite" url="server.js" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
