Event handlers support matrix

View the EdgeWorkers JavaScript objects, attributes, and functions each event type supports.

See Event handler functions for more information about the supported event types.

Note: The onClientRequest, onOriginRequest, onOriginResponse, and onClientResponse event handlers support the GET, HEAD, POST, PUT, and DELETE HTTP methods. The responseProvider event handler currently only supports the GET and HEAD HTTP methods.


Event Handler	Use Cases	Methods
onClientRequest	Redirect Management Traffic Filtering Allow / Deny Static Response Offload	respondWith(status,headers,body,[deny_reason])
	Header Management	getHeader(name, value) setHeader(name, value) addHeader(name,value) removeHeader(name)
	Cookie Management	Cookies([cookieHeader], [options]) toHeader([options]) get(name) getAll (name) names() add(name, value) delete(name) Note: To use these Cookie Management methods, you need to import the Cookies module.
	Delivery Property Flow Control	getVariable(name) setVariable(name, value)
	Conditionally Route Traffic Personalization	route(destination)
	Cache Key Manipulation	excludeQueryString() includeQueryString() includeQueryArgument(name) includeCookie(name) includeHeader(name) includeVariable(name)
onOriginRequest	Header Management	getHeader(name, value) setHeader(name, value) addHeader(name,value) removeHeader(name)
	Cookie Management	Cookies([cookieHeader], [options]) toHeader([options]) get(name) getAll (name) names() add(name, value) delete(name) Note: To use these Cookie Management methods, you need to import the Cookies module.
	Delivery Property Flow Control	getVariable(name) setVariable(name, value)
onOriginResponse	Header Management	getHeader(name, value) setHeader(name, value) addHeader(name,value) removeHeader(name)
	Cookie Management	Cookies([cookieHeader], [options]) toHeader([options]) get(name) getAll (name) names() add(name, value) delete(name) Note: To use these Cookie Management methods, you need to import the Cookies module.
	Delivery Property Flow Control	getVariable(name) setVariable(name, value)
onClientResponse	Header Management	getHeader(name, value) setHeader(name, value) addHeader(name,value) removeHeader(name)
	Cookie Management	Cookies([cookieHeader], [options]) toHeader([options]) get(name) getAll (name) names() add(name, value) delete(name) Note: To use these Cookie Management methods, you need to import the Cookie module.
	Delivery Property Flow Control	getVariable(name) setVariable(name, value)
responseProvider	Response Orchestration	httpRequest() text() json() getHeader(name) getHeaders() createResponse() Note: To use these responseProvider functions, you need to import the create-response, streams, text-encode-transform, and http-request modules.
responseProvider	Manipulate the response (body, headers)	createResponse()