How to count a group by query in NodeJS Sequelize
This sequelize github issue looks totally like your case: User.findAll({ attributes: [‘User.*’, ‘Post.*’, [sequelize.fn(‘COUNT’, ‘Post.id’), ‘PostCount’]], include: [Post] });
node.js
How can node.js be faster than c and java? Benchmark comparing node.js, c, java and python
I spent a couple of days investigating the performance difference between JS/V8 and C, focusing first of all on the Hydrogen IR generated by the V8 engine. However, after making sure that no extraordinary optimizations are present there, I got back to the analysis of the assembly output and it struck me that the answer … Read more
Where does NPX store binaries after installation?
npm version 7 will cache the packages in a _npx directory. It has a cache layout that apparently involves a hash. For example, for me npx shellcheck installs the executable in ~/.npm/_npx/cca5ebdff9ce100b/node_modules/.bin/shellcheck. (Note the cca5ebdff9ce100b.) However, I very much doubt that the algorithm can be relied upon to be consistent across versions of npx. The … Read more
What is the benefit of using NginX for Node.js?
Here http://developer.yahoo.com/yui/theater/video.php?v=dahl-node Node.js author says that Node.js is still in development and so there may be security issues that NginX simply hides. On the other hand, in case of a heavy traffic NginX will be able to split the job between many Node.js running servers.
How do I compile my TypeScript code for Node.js to one file?
It is not possible to bundle Node.js modules into a single file with the TypeScript compiler alone: each file in the CommonJS module system (used by Node.js) is treated as a single module, and cannot be joined together without proper module bundling techniques found in the many JavaScript code bundlers out there (such as Browserify, … Read more
Docker: Are node alpine images at the end smaller than full node images?
Alpine images are smaller, since other packages using a lot of libraries, which are not used by your solution. What’s are the benefits to use small images? The benefits are: less memory, better performance, security and maintainability. A smaller docker image reduce the size needed on disk, but disk space is cheap. Much more important … Read more
Do I need to run “npm run build” every time I made changes?
So finally, I have found my solution. When you want to re-run “npm run build” every time a file changes. You need to install watch via npm. It checks all the files inside a directory and when you change something or on-save, it will re-run all the scripts inside package.json. So steps – Install watch … Read more
Doing http requests through a SOCKS5 proxy in NodeJS
I’ve just published two modules that should help you do this: socks5-http-client and socks5-https-client. Just use those instead of the default http module. The API is the same. For example: require(‘socks5-http-client’).request(options, function(res) { console.log(‘STATUS: ‘ + res.statusCode); console.log(‘HEADERS: ‘ + JSON.stringify(res.headers)); res.setEncoding(‘utf8’); res.on(‘data’, function (chunk) { console.log(‘BODY: ‘ + chunk); }); });
how do I redirect back to the originally-requested url after authentication with passport-saml?
Can I send a url, or some other value, to the IdP that will get round-tripped and POSTed back in the response SAML? And if so, how can I access it in my /login/callback route? To round-trip a value via the IdP you need to use RelayState. This is a value that you can send … Read more