codesnips

http

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
python 
from sqlalchemy import select

from .models import Order, db


def stream_orders(batch_size=1000):

Stream a Large CSV Export in Flask With a Generator Response

flask streaming csv
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
java 
package com.example.http;

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;

Attaching Bearer Tokens to Spring RestClient Calls with a ClientHttpRequestInterceptor

spring-boot restclient interceptor
by codesnips 3 tabs
rust 
use std::path::{Component, Path, PathBuf};

#[derive(Debug)]
pub enum ResolveError {
    Traversal,
    NotFound,

Safely Serving Static Files with Path Traversal Protection in Rust

rust axum tokio
by codesnips 3 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
javascript 
function createReadiness() {
  let ready = true;

  function markUnready() {
    ready = false;
  }

Graceful HTTP Server Shutdown on SIGTERM With In-Flight Request Draining in Node.js

nodejs http graceful-shutdown
by codesnips 3 tabs
typescript 
export type ErrorCode =
  | 'VALIDATION'
  | 'UNAUTHENTICATED'
  | 'FORBIDDEN'
  | 'NOT_FOUND'
  | 'CONFLICT'

API error shape that frontend can rely on

typescript express react
by codesnips 4 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
go 
package web

import (
  "bytes"
  "html/template"
  "net/http"

Template rendering with html/template and strict escaping

go templates http
by Leah Thompson 1 tab
java 
public class PayloadLimitFilter extends OncePerRequestFilter {

    private final long maxBytes;
    private final Set<String> allowedTypes;

    public PayloadLimitFilter(long maxBytes, Set<String> allowedTypes) {

Enforce Request Payload Size and Content-Type with a Servlet Filter and Controller Guard

spring-boot servlet-filter validation
by codesnips 4 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