ergo

Node.js ≥ 22 Pure ESM

Installation

npm install @centralping/ergo

Middleware	Import	Stage	RFC
Logging	`@centralping/ergo/http/logger`	Negotiation	—
Content negotiation	`@centralping/ergo/http/accepts`	Negotiation	RFC 9110 §12.5
URL parsing	`@centralping/ergo/http/url`	Negotiation	—
Pagination	`@centralping/ergo/http/paginate`	Negotiation	RFC 8288
CORS	`@centralping/ergo/http/cors`	Negotiation	Fetch Standard
Cookies	`@centralping/ergo/http/cookie`	Negotiation	RFC 6265
Prefer header	`@centralping/ergo/http/prefer`	Negotiation	RFC 7240
Conditional requests	`@centralping/ergo/http/precondition`	Negotiation	RFC 6585 §3
Rate limiting	`@centralping/ergo/http/rate-limit`	Negotiation	RFC 6585 §4
Authorization	`@centralping/ergo/http/authorization`	Authorization	RFC 6750, RFC 7617
CSRF protection	`@centralping/ergo/http/csrf`	Authorization	OWASP
Body parsing	`@centralping/ergo/http/body`	Validation	RFC 7578
JSON Schema validation	`@centralping/ergo/http/validate`	Validation	—
Query validation	`@centralping/ergo/http/json-api-query`	Validation	JSON:API
Idempotency	`@centralping/ergo/http/idempotency`	Validation	IETF Draft
Response sending	`@centralping/ergo/http/send`	Execution	RFC 9457
Pipeline handler	`@centralping/ergo/http/handler`	Execution	—

Middleware	Import	RFC
Compression	`@centralping/ergo/http/compress`	RFC 9110 §12.5.3
Cache control	`@centralping/ergo/http/cache-control`	RFC 9111
Security headers	`@centralping/ergo/http/security-headers`	RFC 6797
Timeout	`@centralping/ergo/http/timeout`	—
Tracing	`@centralping/ergo/http/tracing`	W3C Trace Context

Module	Import
HTTP error creation	`@centralping/ergo/utils/http-errors`
Compose middleware	`@centralping/ergo/utils/compose`
Async iterables	`@centralping/ergo/utils/iterables`
Observable helpers	`@centralping/ergo/utils/observables`
Stream utilities	`@centralping/ergo/utils/streams`
Buffer matching	`@centralping/ergo/utils/buffers`