@c4c/policies

Composable policies for authentication, retry, logging, rate limiting, and more.

Installation

pnpm add @c4c/policies

Overview

@c4c/policies provides:

• Retry with exponential backoff
• Structured logging
• OpenTelemetry spans
• Rate limiting
• OAuth authentication
• Role-based authorization

Quick Example

import { applyPolicies } from "@c4c/core";
import { withRetry, withLogging, withAuth } from "@c4c/policies";

export const myProcedure: Procedure = {
  contract: { ... },
  handler: applyPolicies(
    async (input) => { /* business logic */ },
    withLogging("myProcedure"),
    withRetry({ maxAttempts: 3 }),
    withAuth({ requiredRoles: ["admin"] })
  ),
};

Available Policies

• withRetry - Retry failed operations
• withLogging - Log execution
• withSpan - OpenTelemetry tracing
• withRateLimit - Rate limiting
• withOAuth - OAuth authentication
• withAuth - Authorization
• withAuthRequired - Require authentication
• withRole - Require specific roles
• withPermission - Require permissions

Next Steps

• Learn about Policies
• Set up Authentication
• View Examples