How statistics are calculated
We count how many offers each candidate received and for what salary. For example, if a Support with HTTP with a salary of $4,500 received 10 offers, then we would count him 10 times. If there were no offers, then he would not get into the statistics either.
The graph column is the total number of offers. This is not the number of vacancies, but an indicator of the level of demand. The more offers there are, the more companies try to hire such a specialist. 5k+ includes candidates with salaries >= $5,000 and < $5,500.
Median Salary Expectation – the weighted average of the market offer in the selected specialization, that is, the most frequent job offers for the selected specialization received by candidates. We do not count accepted or rejected offers.
Most popular Operations and Cloud trends in 2024
Where is HTTP used?
Web Browsing Bonanza
- Surf's up! HTTP is the ocean wave that web browsers ride to fetch webpages faster than a seagull swooping on your sandwich!
API Fiesta
- Developers throw data parties, with HTTP as the DJ, rocking JSON and XML hits for the API nightclub.
Social Media Shenanigans
- HTTP is the chatty messenger delivering your cat GIFs and meme stash over social networks, bragging more than your Aunt Carol.
Online Shopping Spree
- HTTP is the mall cop making sure your online cart dashes through the internet aisles, snagging deals faster than a clearance sale.
HTTP Alternatives
gRPC
gRPC is an open-source RPC framework by Google. It uses HTTP/2, enables bidirectional streaming, and excels in microservices communication.
service Greeter {
rpc SayHello (HelloRequest) returns (HelloReply) {}
}
- Efficient protocol with protobuf.
- Native support for bidirectional streaming.
- Natively less human-readable due to binary format.
WebSocket
WebSocket provides full-duplex communication channels over a single TCP connection. It is widely used for real-time applications.
const socket = new WebSocket('ws://example.com/');
socket.onmessage = (event) => {
console.log(event.data);
}
- Enables real-time bi-directional communication.
- Reduces overhead of HTTP handshakes.
- Lacks built-in security features of HTTP/2 and HTTP/3.
QUIC (Quick UDP Internet Connections)
QUIC is a transport layer network protocol designed by Google, leveraging UDP to reduce latency and improve performance.
// QUIC protocol usage requires client and server support
// Example configurations are backend-dependent
- Designed to be faster than TCP+TLS+HTTP/2.
- Reduced connection establishment time.
- Deployment is not yet as widespread as HTTP/2.
Quick Facts about HTTP
A Stroll Down Memory Lane with HTTP
Flashback to 1989, when flannel shirts were in, and Sir Tim Berners-Lee birthed HTTP while at CERN. No, it wasn't created in a dingy garage by a couple of college dropouts; it was all science, baby! Its main gig? To let web browsers and servers chit-chat, swapping documents like trading cards.
The HTTP Roller Coaster Ride: Version Wars!
Fast-forward to 1996, when HTTP/1.0 hit the scene, it was just a wee upgrade from the OG HTTP/0.9. But in '97, along came HTTP/1.1, swaggering in with its persistent connections. Tossed aside like last year's flip phone, it ruled until HTTP/2's debut in 2015, which made things zippier with multiplexing and server push!
The Secure Shift: Birth of HTTPS
In a world where eavesdroppers lurked in every corner (cyber ones, not your nosy neighbor), HTTP needed a hero. Enter HTTPS in 1994, swooping in with its shiny cape of encryption courtesy of SSL. This wasn't just any makeover, it turned the plain HTTP into SuperHTTP, deflecting the villainous attacks on privacy!
// Here's a classic HTTP/1.1 request, simple yet elegant.
GET /index.html HTTP/1.1
Host: www.example.com
What is the difference between Junior, Middle, Senior and Expert HTTP developer?
Seniority Name | Years of Experience | Average Salary (USD/year) | Responsibilities & Activities |
---|---|---|---|
Junior HTTP Developer | 0-2 years | $50,000 - $70,000 |
|
Middle HTTP Developer | 2-5 years | $70,000 - $95,000 |
|
Senior HTTP Developer | 5-10 years | $95,000 - $120,000 |
|
Expert/Team Lead HTTP Developer | 10+ years | $120,000+ |
|
Top 10 HTTP Related Tech
JavaScript (and Node.js)
Why did JavaScript grab the first spot, you ask? Simple - it's like the Swiss Army knife for slicing and dicing on the web. If HTTP were a sandwich, JavaScript would be the mayo that spreads everywhere (for better or worse). Languages like Python and Ruby are cool, but JS runs the browser town. Plus, Node.js lets JS slip into the server room and handle HTTP with a smirk.
// Node.js server that logs HTTP requests
const http = require('http');
const server = http.createServer((req, res) => {
console.log(`Request received: ${req.method} ${req.url}`);
res.end('Hello World');
});
server.listen(3000, () => {
console.log('Server is listening on port 3000');
});
Express.js
Imagine if you could take Node.js, add a sprinkle of syntactic sugar, and turn it into an HTTP ninja. Enter Express.js - the minimalist web framework that's so lightweight, you could confuse it for a diet plan. It's like Node.js went to a spa and came out looking extra fancy.
// Simple Express server example
const express = require('express');
const app = express();
app.get('/', (req, res) => {
res.send("It's like Node.js but fancier!");
});
app.listen(3000, () => {
console.log('Express server is all ears on port 3000');
});
RESTful APIs
What's the buzz all about with REST? It's like HTTP got a set of best practices that everyone agreed upon while at a fancy dinner party. RESTful design keeps things predictable for APIs, kind of like how your grandma keeps her candies in that same old dish. It's organized, disciplined, and plays well with HTTP.
// Example of a RESTful endpoint
app.get('/api/candies', (req, res) => {
res.json({ message: "Grandma's candies are RESTfully served!" });
});
GraphQL
If REST is the organized grandma, GraphQL is the cool aunt who lets you pick your own candies. It's a query language that makes fetching data over HTTP feel like you've got telepathic powers. You ask for exactly what you want, and voilà, it's there – no more, no less.
// Simplified GraphQL server example
const { graphqlHTTP } = require('express-graphql');
const { buildSchema } = require('graphql');
const schema = buildSchema(`
type Query {
hello: String
}
`);
const rootValue = {
hello: () => 'Hello world!',
};
app.use('/graphql', graphqlHTTP({
schema: schema,
rootValue: rootValue,
graphiql: true,
}));
OAuth 2.0 and OpenID Connect
HTTP security is like a nightclub, and OAuth 2.0 is the bouncer checking your ID. This protocol adds a layer of security to your HTTP transactions, proving that everyone's who they claim to be. OpenID Connect steps up the game; it not only checks IDs but also whispers secrets about the user securely to the server.
HTTP/2 (and HTTP/3)
Remember how HTTP was like that one-lane country road? HTTP/2 is the multi-lane highway built right next to it. And just when you thought highways were cool, HTTP/3 is rolling out as the hyperloop of data transport. They're all about making things faster, smoother, and more efficient, like HTTP on a double espresso.
CURL
CURL is like the Swiss Army knife's older, command-line loving sibling. It's a tool so versatile that you can make HTTP requests, try on APIs for size, and even download your favorite cat pictures with a few keystrokes. It's not fancy, but it's powerful – a true coder's power strip.
// CURL command to make a GET request
curl https://api.example.com/cats
WebSockets
Once upon a time, HTTP asked for a way to chat back and forth without yelling (sending requests) across the room every time. WebSockets were born, offering a real-time, bi-directional, continuous conversation. It's like getting walkie-talkies after having to send smoke signals.
// Simple WebSocket example in Node.js
const WebSocket = require('ws');
const wss = new WebSocket.Server({ port: 8080 });
wss.on('connection', function connection(ws) {
ws.on('message', function incoming(message) {
console.log('received: %s', message);
});
ws.send('Hello! Ready to chat?');
});
Postman
Meet Postman, the GUI sidekick to CURL's command line machismo. It's like having a remote control for all your APIs. You can get, post, put, delete, and patch them into submission without writing a line of code. It's essentially the click-and-drag of HTTP experimentation.
SSL/TLS
Let's talk whispering over the internet. SSL/TLS is the digital equivalent of a secret handshake. It encrypts the blabber between client and server so well that not even the nosiest of eavesdroppers can understand. Think of it as an invisibility cloak for your data.