@lifi/compose-spec/src/headers.ts

Public wire-format types and schemas for Compose flows

/**
 * HTTP header names on the compose wire.
 *
 * Both the SDK (which sends the request header) and the backend (which reads it
 * and answers with the response header) are part of the same handshake, so the
 * names belong to the wire format rather than to either side of it.
 */

/** Compose contract version the client was built against. Sent on every request. */
export const COMPOSER_SDK_VERSION_HEADER = 'x-lifi-composer-sdk';

/** Compose contract version the backend serves. Returned on every compose response. */
export const COMPOSE_VERSION_HEADER = 'x-lifi-composer-version';