EventType(value)The part of the request or response for which the extension is called.
Values:
EVENT_TYPE_UNSPECIFIED (0):
Unspecified value. Do not use.
REQUEST_HEADERS (1):
If included in supported_events, the extension is called
when the HTTP request headers arrive.
REQUEST_BODY (2):
If included in supported_events, the extension is called
when the HTTP request body arrives.
RESPONSE_HEADERS (3):
If included in supported_events, the extension is called
when the HTTP response headers arrive.
RESPONSE_BODY (4):
If included in supported_events, the extension is called
when the HTTP response body arrives.
REQUEST_TRAILERS (5):
If included in supported_events, the extension is called
when the HTTP request trailers arrives.
RESPONSE_TRAILERS (6):
If included in supported_events, the extension is called
when the HTTP response trailers arrives.