Code Explainers

Code explainers tagged #http-headers

ruby 
module Paginatable
  extend ActiveSupport::Concern
 
  private

A reusable pagination concern in Rails

pagination concerns http-headers
Intermediate 8 steps
python 
from flask import Blueprint, render_template, jsonify, request, abort
 
from .models import Article
 

Content negotiation in a Flask Blueprint

content-negotiation http-headers routing
Intermediate 7 steps
php 
<?php
 
namespace App\Http\Support;
 

Adding RFC 5988 Link headers in Laravel

pagination http-headers rest-api
Intermediate 7 steps
rust 
use std::net::{IpAddr, SocketAddr};
 
use axum::extract::{ConnectInfo, FromRequestParts};
use axum::http::request::Parts;

How a custom ClientIp extractor works in Axum

extractor http-headers proxy-forwarding
Intermediate 8 steps
go 
func (h *ExportHandler) BulkExport(c *gin.Context) {
	projectID := c.Param("projectID")
 
	reports, err := h.reports.ListByProject(c.Request.Context(), projectID)

Streaming a ZIP download in Gin

streaming zip-archive http-headers
Intermediate 8 steps
php 
<?php
 
namespace App\Http\Controllers;
 

Server-Sent Events in Laravel

server-sent-events streaming long-polling
Advanced 9 steps
rust 
use axum::{
    extract::FromRequestParts,
    http::{request::Parts, StatusCode, header::ACCEPT_LANGUAGE},
};

A locale extractor for Axum handlers

content-negotiation http-headers custom-extractor
Intermediate 7 steps
rust 
use axum::{
    extract::{Request, State},
    http::{HeaderValue, StatusCode},
    middleware::Next,

API version headers with Axum middleware

middleware http-headers versioning
Intermediate 8 steps
rust 
use axum::{
    body::Body,
    http::{header, HeaderValue, StatusCode, Uri},
    response::{IntoResponse, Response},

Serving embedded static files in Axum

static-assets embedding http-headers
Intermediate 7 steps
ruby 
class Admin::OrdersExportController < Admin::BaseController
  include ActionController::Live
 
  def show

Streaming a CSV export in Rails

streaming csv-export batching
Advanced 8 steps
java 
@RestController
@RequestMapping("/api/reports")
public class OrderReportController {
 

Streaming a CSV export in Spring

streaming csv-export backpressure
Intermediate 9 steps
python 
import time
 
from flask import Flask, g, request
 

Timing requests with Flask hooks

middleware request-lifecycle instrumentation
Intermediate 5 steps
go 
func ProxyDownload(c *gin.Context) {
	objectKey := c.Param("key")
	upstream := fmt.Sprintf("%s/files/%s", storageBaseURL, objectKey)
 

Streaming a proxied download in Gin

reverse-proxy streaming http-headers
Intermediate 8 steps
rust 
use std::time::Duration;
 
use axum::{
    extract::State,

Rate-limit errors as Axum responses

error-handling rate-limiting http-headers
Intermediate 6 steps
go 
package server
 
import (
	"net/http"

Serving cached static assets in Gin

caching static-files middleware
Intermediate 7 steps
go 
package middleware
 
import (
	"net/http"

Building a CORS middleware in Gin

cors middleware closures
Intermediate 9 steps
typescript 
import { Controller, Get, Param, StreamableFile, Res, NotFoundException, Header } from '@nestjs/common';
import { Response } from 'express';
import { createReadStream, promises as fsp } from 'fs';
import { join } from 'path';

Streaming CSV file downloads in NestJS

file-streaming http-headers error-handling
Intermediate 7 steps
rust 
use axum::{
    extract::{Path, State},
    http::{header, HeaderMap, StatusCode},
    response::{IntoResponse, Response},

Optimistic concurrency with ETags in Axum

optimistic-concurrency etag http-headers
Intermediate 8 steps