codesnips

middleware

ruby 
require 'sinatra/base'
require 'json'

class HealthApp < Sinatra::Base
  configure do
    set :dump_errors, true

Mounting Modular Sinatra Apps Under Route Prefixes with Rack::URLMap

sinatra rack urlmap
by codesnips 3 tabs
python 
from flask import jsonify
from marshmallow import ValidationError as MarshmallowValidationError
from werkzeug.exceptions import HTTPException


class ApiError(Exception):

Structured JSON Error Handling for Flask API Validation Failures

flask rest-api error-handling
by codesnips 3 tabs
go 
package middleware

import (
  "log"
  "net/http"
  "runtime/debug"

Panic recovery middleware that fails closed and logs context

go http middleware
by Leah Thompson 1 tab
php 
<?php

namespace App\Services;

use App\Mail\VerifyEmail;
use App\Models\ContactEmail;

Signed URL Email Verification in Laravel Without the Built-in MustVerifyEmail Contract

laravel php signed-urls
by codesnips 4 tabs
javascript 
const jwt = require('jsonwebtoken');

const ACCESS_SECRET = process.env.JWT_ACCESS_SECRET;
const REFRESH_SECRET = process.env.JWT_REFRESH_SECRET;
const ISSUER = 'api.example.com';
const AUDIENCE = 'example-web';

Sign and Verify JWT Access Tokens in Express Auth Middleware

express jwt authentication
by codesnips 3 tabs
python 
import threading
from contextlib import contextmanager

_state = threading.local()

Per-Tenant Data Isolation in Django with a Thread-Local Current Tenant Manager

django multi-tenancy orm
by codesnips 4 tabs
go 
package session

import (
	"crypto/hmac"
	"crypto/sha256"
	"encoding/base64"

Stateless Session Cookies Signed and Verified With HMAC in Go

go security cookies
by codesnips 3 tabs
ruby 
class Problem
  DEFAULT_TYPE = "https://api.example.com/problems/about:blank".freeze

  attr_reader :type, :title, :status, :detail, :instance, :extensions

  def initialize(status:, title:, detail: nil, type: nil, instance: nil, extensions: {})

API Error Handling with Problem Details (RFC7807-ish)

rails api error-handling
by codesnips 3 tabs
python 
import time
import uuid
from dataclasses import dataclass

import redis

Sliding-Window Per-User Rate Limiting With Redis and a Flask Decorator

rate-limiting redis flask
by codesnips 3 tabs
javascript 
const jwt = require('jsonwebtoken');

const SECRET = process.env.JWT_SECRET;
const ALGORITHM = 'HS256';
const ACCESS_TTL = '15m';

JWT Authentication Middleware in Express That Populates req.user

express jwt authentication
by codesnips 3 tabs
javascript 
const jwt = require('jsonwebtoken');

function authenticate(req, res, next) {
  const header = req.headers.authorization || '';
  const [scheme, token] = header.split(' ');

Role-Based Access Control in Express with a requireRole Middleware Factory

express middleware rbac
by codesnips 3 tabs
php 
<?php

namespace App\Message;

final class SyncCustomerMessage
{

Retrying Flaky HTTP Calls with a Symfony Messenger Retry Strategy and Failure Handler

symfony messenger retry
by codesnips 3 tabs