intro to http and node.js
TRANSCRIPT
Agenda• Introduction to Node.js • Introduction to cURL • Node.js Basics
Node.js vs PHP
Popularity - 89K+ NPM Packages
Companies Using Node.js
http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis
Consider Technology as a Swiss Army Knife
What is Node.js• Node.js is a software platform that is used to build
scalable network (especially server-side) applications.
• Utilizes JavaScript as its scripting language, and achieves high throughput via non-blocking I/O and a single-threaded event loop.
• Node.js contains a built-in HTTP server library, making it possible to run a web server without the use of external software, such as Apache or Lighttpd.
• Node.js is control.
- Hypertext Transfer Protocol - Web Browser - HTTP Client - Comprised of headers + body - Verbs: GET, PUT, POST, DELETE - GET http://www.doclermedia.com HTTP/1.0 - Demo: Using Charles & CURL
HTTP
cURL• cURL is a computer software project providing a library and
command-line tool for transferring data using various protocols. The cURL project produces two products, libcurl and cURL. It was first released in 1997.
• GET, POST, PUT & DELETE
curl -X GET http://www.google.com
node helloworld.js console.log("Hello World");
node server.js http_server = require("http"); http_server.createServer(function(request,response){ console.log("Launching Server"); response.writeHeader(200, {"Content-Type": "text/plain"}); response.write("Hello World"); response.end(); }).listen(8080); console.log("Server Running on 8080");