📄️ What is a webhook?
A webhook is an HTTP callback that pushes real-time event data from one app to another. Learn how webhooks work, see examples, and compare webhooks vs APIs.
📄️ What is a webhook endpoint?
A webhook endpoint is the URL where your application receives webhook event notifications. Learn how to create, secure, and test webhook endpoints.
📄️ What is a webhook retry?
A webhook retry is a repeat delivery attempt for a failed webhook message. Learn what triggers retries, common retry schedules, and how receivers should handle them.
📄️ What is a webhook URL?
A webhook URL is the address where an application receives webhook event notifications. Learn how to get one, register it, and keep it secure.
📄️ Webhook Authentication
Webhook authentication verifies that incoming webhooks genuinely come from the expected sender. Learn which methods work, which don't, and why signatures win.
📄️ Webhook Proxy
A webhook proxy is a service that acts as an intermediary between webhook providers and webhook receivers, forwarding incoming webhook requests to the appropriate destination.
📄️ What is a webhook signature?
A webhook signature is a cryptographic code that proves a webhook came from the expected sender and wasn't tampered with. Learn how signing and verification work.
📄️ What is a webhook gateway?
A webhook gateway is an intermediary service that sits between webhook senders and receivers to centralize verification, routing, retries, and monitoring. Learn what it does and when you need one.
📄️ What is webhook infrastructure?
Webhook infrastructure is the systems that send and receive webhooks reliably: queueing, signature verification, retries, dead-letter handling, and monitoring.
📄️ What is webhook fan-out?
Webhook fan-out is delivering one event to many subscribed endpoints, each with its own queue, retries, and failure state, without slowing the source system.
📄️ What is a webhook payload?
A webhook payload is the data a sender delivers in the body of a webhook request. Learn what a payload contains, how to read one safely, and how to design your own.
📄️ What is an MCP webhook?
An MCP webhook connects AI agents to webhook events. It covers MCP servers that send or receive webhooks, plus webhook support coming to the MCP spec.
📄️ Callback URL
A callback URL is the address another system calls back to when an event or operation finishes. Learn how they work in OAuth, payments, and webhooks.
📄️ Webhook Rate Limit
Webhook rate limits are crucial in managing the flow of data between services. These limits serve to maintain service quality, prevent abuse, and ensure equitable resource usage. Both webhook providers and consumers have valid reasons for implementing these controls.
📄️ Understanding Webhook Timeouts
Webhooks are a powerful tool used to create real-time applications by sending data triggered by events. However, they are not immune to the limitations of web communications, such as timeouts. This article explores the rationale behind webhook timeouts, what happens when a timeout occurs, and strategies to resolve these issues.
📄️ Exponential backoff
Exponential backoff is a retry strategy that increases the delay between attempts exponentially. Learn how it works and why webhook systems rely on it.
📄️ SSRF (Server Side Request Forgery)
SSRF is a vulnerability where an attacker tricks a server into making requests on their behalf. Learn why webhook senders are a prime SSRF target and how to defend against it.
📄️ HMAC (Hash-based Message Authentication Code)
HMAC is a specific construction for creating a message authentication code (MAC) involving a cryptographic hash function in combination with a secret cryptographic key. HMAC involves combining a shared secret key with the message data, hashing the result with a cryptographic hash function, and then again hashing that combined with the key. This process provides assurance about the data integrity and the authenticity of a message.
📄️ Dead Letter Queue
A dead letter queue (DLQ) stores messages that repeatedly fail to be delivered or processed. Learn how DLQs work and why webhook systems need them.
📄️ Message Broker
Definition of Message Broker
📄️ Event Driven Architecture
Event-driven architecture is a software design pattern that revolves around the production, detection, and reaction to events.
📄️ What are Server-Sent Events (SSE)?
Server-sent events (SSE) stream one-way updates from a server to a browser over an ordinary HTTP response. How the wire format and reconnection work.
📄️ Event Types
Webhooks are user-defined HTTP callbacks that are triggered by specific events in a source application. They are a means for different web services to communicate and transfer data in real-time. Understanding the types of events that can trigger webhooks and their uses is crucial for automating workflows and integrating disparate systems.
📄️ Event Broker
An event broker is a middleware component in event-driven architectures, that facilitate routing events from publishers (entities that emit the events) to subscribers (entities that listen for and react to the events). They ensure efficient processing and distribution of events and support complex routing, event transformation, and processing logic.
📄️ SQS Visibility Timeout
As a software engineer, ensuring reliable and efficient processing of messages in distributed systems is crucial. Amazon Simple Queue Service (SQS) is a fully managed message queuing service that facilitates decoupled communication between services. One of its key features, Visibility Timeout, plays a pivotal role in message processing reliability.
📄️ Priority Queue
As a software engineer, you often encounter scenarios where certain tasks or requests must be processed with varying degrees of urgency. A priority queue is an essential data structure that allows you to handle such cases efficiently, ensuring high-priority tasks are attended to before others.
📄️ Distributed Message Queue
As a software engineer, you frequently face the challenge of building scalable, fault-tolerant systems that can process vast amounts of data while maintaining high performance. Distributed message queues address this challenge by enabling asynchronous communication between services, promoting decoupling, and ensuring resilience in modern distributed architectures.
📄️ Background Queue
As a software engineer, you’ve likely encountered situations where certain tasks in your application are slow or computationally expensive, such as sending emails, processing images, or generating reports. Running these tasks during a user’s interaction with your system can lead to poor performance and degraded user experience. Enter background queues, a mechanism for offloading tasks to run asynchronously in the background, enabling your application to stay responsive while handling heavy lifting behind the scenes.
📄️ Distributed Message Broker
As a software engineer, you often encounter the challenge of designing systems that can reliably handle large-scale message processing across distributed environments. Distributed message brokers play a pivotal role in enabling decoupled communication, scalability, and fault tolerance in such architectures. Whether you’re building a real-time streaming platform, event-driven microservices, or IoT applications, distributed message brokers form the backbone of modern distributed systems.
📄️ Quorum Queue
As a software engineer, you’re always striving to design systems that are both reliable and robust, especially when it comes to message delivery. Ensuring messages aren’t lost due to node failures, network interruptions, or unexpected disruptions is critical. This is where quorum queues come into play. They offer a durable and fault-tolerant solution for message storage and delivery in distributed messaging systems. In this guide, we’ll explore quorum queues, their use cases, and how to implement them effectively using RabbitMQ.