JavaScript logging for the responseProvider event handler includes a
multi-part response. It consists of the expected response body followed by an additional
section that contains the responseProvider debug fields.
With streamed responses, this information is
not available until the event handler ends. Note: For responseProvider you need to add
the Pragma akamai-x-ew-debug-rp header that enables the multi-part response
header.
Note: If the
responseProvider event handler is not implemented, a status of UnimplementedEventHandler will appear in the standard trace header.
How to
-
Use the instructions in Enable
enhanced debug headers to add the built-in log module to your
EdgeWorkers function.
-
Here’s a curl request that adds
the Pragma akamai-x-ew-debug-rp multi-part response header and the Akamai-EW-Trace header to
retrieve the JavaScript logging information:
curl -i 'http://www.example.com/ -H 'Pragma: akamai-x-ew-debug-rp' -H 'Akamai-EW-Trace: exp=1600166650~acl=/*~hmac=db4018160fab828da87d3fd8685bfbb9e0f1020885a9cce9403bcf3f5182477d'
In the multi-part response output below, the original body is
separated from the trailing debug information by the
j50cx0rLZHkfMieMHdE7HM randomized boundary string.
HTTP/1.1 200 OK
Content-Type: multipart/form-data; boundary=j50cx0rLZHkfMieMHdE7HM
content-disposition: attachment
Date: Thu, 22 Oct 2020 19:08:18 GMT
Content-Length: 1871
Connection: keep-alive
X-Akamai-EdgeWorker-onClientResponse-Info: ew=[EdgeWorker ID] v1.0:Example; status=Success; status_msg=-; wall_time=0.037; cpu_time=0.037; sc_ver=2.15.14; pearl_ver=2.0.1; ew_exe_ip=198.18.231.68; heap_usage=0
X-Akamai-EdgeWorker-onClientRequest-Info: ew=[EdgeWorker ID] v:Example; status=UnimplementedEventHandler; sc_ver=; pearl_ver=2.0.1; ew_exe_ip=198.18.231.68
AK_EIP_FORWARDER_IP:
X-Powered-By: Akamai EdgeWorkers
--j50cx0rLZHkfMieMHdE7HM
content-type: application/json
content-disposition: form-data; name="response-provider-body"
{"endPoint1":{"manifest1":{ ... }},"endPoint2":{"manifest2":{ ... }},"endPoint3":{"manifest3":{ ... }}}
--j50cx0rLZHkfMieMHdE7HM
content-type: text/plain;charset=UTF-8
content-disposition: form-data; name="stream-trace"
X-Akamai-EdgeWorker-ResponseProvider-Info: ew=[EdgeWorker ID] v1.0:Example; status=Success; status_msg=-; wall_time=18.921; cpu_time=5.892
X-Akamai-EdgeWorker-responseProvider-Log: D:main.js:40 SubRequests Completed - Resulting JSON {"endPoint1":{"manifest1":{ ... }},"endPoint2":{"manifest2":{ ... }},"endPoint3":{"manifest3":{ ... }}}
--j50cx0rLZHkfMieMHdE7HM--
