apps/gateway/src/utils/idempotency.ts

Metadata

• Purpose: Source artifact in the anchor-msp system.
• Domain: applications
• Language: ts
• Bytes: 858
• Lines: 26
• Content hash (short): 78126076
• Source (start): apps/gateway/src/utils/idempotency.ts:1
• Source (end): apps/gateway/src/utils/idempotency.ts:26

Indexed Symbols

• getIdempotencyKey (line 3, function) - Implements get idempotency key for module behavior.
• getIdempotencyRouteScope (line 18, function) - Implements get idempotency route scope for module behavior.

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import type { FastifyRequest } from "fastify";

export function getIdempotencyKey(request: FastifyRequest): string {
  const key = request.headers["idempotency-key"];
  if (!key || typeof key !== "string") {
    throw new Error("Idempotency-Key header is required");
  }
  const normalized = key.trim();
  if (normalized.length < 8 || normalized.length > 128) {
    throw new Error("Idempotency-Key must be between 8 and 128 characters");
  }
  if (!/^[A-Za-z0-9._:-]+$/.test(normalized)) {
    throw new Error("Idempotency-Key contains unsupported characters");
  }
  return normalized;
}

export function getIdempotencyRouteScope(request: FastifyRequest): string {
  const routePath = request.routeOptions.url;
  if (routePath && typeof routePath === "string") {
    return routePath;
  }
  const pathOnly = request.url.split("?")[0];
  return pathOnly;
}