Code Explainers

Code explainers tagged #encoding

go 
package handlers
 
import (
	"encoding/base64"

Cursor pagination in a Gin handler

pagination cursor rest-api
Intermediate 8 steps
ruby 
require "charlock_holmes"
 
class TextFileNormalizer
  DEFAULT_CONFIDENCE = 60

Normalizing text files to clean UTF-8 in Ruby

encoding text-processing file-io
Intermediate 8 steps
rust 
use base64::engine::general_purpose::{STANDARD, URL_SAFE_NO_PAD};
use base64::{DecodeError, Engine};
 
pub fn encode_standard(data: &[u8]) -> String {

Base64 encode and decode in Rust

base64 encoding error-handling
Beginner 7 steps
ruby 
require "base64"
require "json"
 
module Attachment

Packing binary attachments into JSON

serialization base64 json
Intermediate 8 steps
java 
public final class BomAwareReader {
 
    private static final char UTF8_BOM = '\uFEFF';
 

Skipping the UTF-8 byte-order mark in Java

file-io encoding byte-order-mark
Intermediate 6 steps
java 
public URI buildSearchUri(String query, int page, int size, List<String> tags) {
    UriComponentsBuilder builder = UriComponentsBuilder
            .fromUriString("https://api.example.com")
            .path("/v2/products/search")

Building URIs safely with UriComponentsBuilder in Spring

url-building builder-pattern encoding
Intermediate 5 steps
go 
package render
 
import (
	"net/http"

How Gin renders MsgPack responses

serialization content-type interface-implementation
Intermediate 5 steps
python 
from pathlib import Path
 
import chardet
 

Reading text files of unknown encoding in Python

encoding byte-order-mark fallback
Intermediate 8 steps
php 
<?php
 
function parseMultipartEmail(string $raw): array
{

Parsing multipart emails with mailparse

mime-parsing email encoding
Intermediate 9 steps
ruby 
require "zlib"
require "stringio"
require "base64"
 

Compress-and-encode payloads in Ruby

compression encoding io-streams
Intermediate 8 steps
go 
package token
 
import (
	"crypto/rand"

Generating secure random tokens in Go

cryptography randomness encoding
Intermediate 5 steps
javascript 
function parseJwtPayload(token) {
  const parts = token.split('.');
  if (parts.length !== 3) {
    throw new Error('Invalid JWT: expected 3 segments');

Decoding a JWT payload in JavaScript

jwt base64url encoding
Intermediate 6 steps