codesnips

retry

typescript 
export interface RetryOptions {
  retries: number;
  baseMs: number;
  maxMs: number;
  signal?: AbortSignal;
  onRetry?: (attempt: number, delay: number, err: unknown) => void;

Exponential backoff with jitter for retries

typescript reliability retry
by codesnips 2 tabs
ruby 
class AddUniqueIndexToTags < ActiveRecord::Migration[7.1]
  disable_ddl_transaction!

  def up
    execute <<~SQL
      UPDATE tags SET name = LOWER(TRIM(name)) WHERE name IS NOT NULL;

Safer “find or create” with Unique Constraint + Retry

rails activerecord concurrency
by codesnips 3 tabs
go 
package retry

import (
  "context"
  "net/http"
  "strconv"

Retry on 429 with Retry-After parsing

go http client
by Leah Thompson 1 tab
ruby 
module RetryableTransaction
  module_function

  RETRIABLE = [ActiveRecord::Deadlocked, ActiveRecord::LockWaitTimeout].freeze

  def run(max_retries: 3, base_delay: 0.05, &block)

Deadlock-Aware Retry Wrapper

rails postgres reliability
by codesnips 3 tabs
typescript 
import { readFileSync } from 'fs';
import { join } from 'path';
import Handlebars from 'handlebars';
import mjml2html from 'mjml';
import { htmlToText } from 'html-to-text';

Email sending with nodemailer + templates

node email nodemailer
by codesnips 3 tabs
typescript 
import { ApplicationConfig } from '@angular/core';
import {
  provideHttpClient,
  withInterceptors,
} from '@angular/common/http';
import { retryInterceptor } from './retry.interceptor';

Angular HttpInterceptor With Exponential Backoff and Jittered Retries

angular http-interceptor rxjs
by codesnips 3 tabs
python 
from sqlalchemy import Column, Integer, BigInteger, String
from sqlalchemy.orm import declarative_base

Base = declarative_base()

Optimistic Locking With a Version Column and Bounded Retries in SQLAlchemy

sqlalchemy postgres optimistic-locking
by codesnips 3 tabs
java 
package com.shop.inventory;

import jakarta.persistence.*;

@Entity
@Table(name = "inventory_item")

Optimistic Locking on Inventory Updates with @Version and a Retrying Conflict Handler in Spring Boot

spring-boot jpa hibernate
by codesnips 3 tabs
sql 
CREATE TABLE outbox_deliveries (
    id              BIGSERIAL PRIMARY KEY,
    dedupe_key      TEXT        NOT NULL,
    target_url      TEXT        NOT NULL,
    payload         JSONB       NOT NULL,
    status          TEXT        NOT NULL DEFAULT 'PENDING',

Reliable Webhook Delivery with a Transactional Outbox and Dedupe Key in Spring Boot

spring-boot webhooks outbox-pattern
by codesnips 3 tabs
java 
package com.example.rates.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.retry.annotation.EnableRetry;
import org.springframework.web.client.RestTemplate;

Retrying a Flaky External API with Spring Retry @Retryable and @Recover Fallback

spring-boot spring-retry resilience
by codesnips 4 tabs
javascript 
const DEFAULTS = {
  baseDelay: 300,
  maxDelay: 8000,
  factor: 2,
  jitter: 0.5,
};

Retry Failed React Mutations with Exponential Backoff and a Status Component

react hooks retry
by codesnips 4 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