every

Kind: Function

Source: src/middleware/combine/index.ts

Part of: Middleware

Create a composed middleware that runs all middleware and throws an error if any of them fail.

every creates a single middleware from multiple middleware functions. It runs each middleware and propagates an error when any middleware fails, allowing the caller to handle the failure through the normal middleware error path.

Signature

ts
function every(middleware: (MiddlewareHandler | Condition)[]): MiddlewareHandler

Parameters

Returns: MiddlewareHandler

Diagram

mermaid
graph LR
  A[Request context] --> B[every middleware]
  B --> C[Middleware A]
  B --> D[Middleware B]
  B --> E[Middleware C]
  C --> F{Any middleware fails?}
  D --> F
  E --> F
  F -->|Yes| G[Throw error]
  F -->|No| H[Continue request flow]

Usage

ts
import { every } from "./middleware/combine";

const requireUser = async (context: RequestContext) => {
  if (!context.user) {
    throw new Error("Authentication required");
  }
};

const requireProject = async (context: RequestContext) => {
  if (!context.params.projectId) {
    throw new Error("Project ID is required");
  }
};

const validateRequest = every(requireUser, requireProject);

await validateRequest(context);

AI Coding Instructions

• Pass middleware that follows the project's middleware function signature.
• Let middleware throw errors for failed checks; every propagates those errors.
• Keep each middleware focused on one request concern, such as authentication or input validation.
• Add shared middleware through every where a route or handler requires all checks to pass.