generated: '2026-07-11' method: derived source: openapi/pusher-openapi.yml summary: types: - apiKey api_key_in: - query schemes: - name: hmacAuth type: apiKey in: query parameter: auth_signature description: |- Pusher request signing. Every request must include the query parameters `auth_key`, `auth_timestamp` (Unix seconds), `auth_version=1.0`, `body_md5` (hex MD5 of the request body when present), and `auth_signature`. `auth_signature` is the HMAC-SHA256 (hex) of the canonical string `"\n\n"` using the application secret as the key. sources: - openapi/pusher-openapi.yml