Enhanced debug headers for responseProvider

To enable enhanced debug headers for responseProvider the debug request must pass the akamai-x-ew-debug-rp Pragma header. The debug output for responseProvider is appended to the end of the body as the second part of a multi-part stream.

When you enable enhanced debugging for responseProvider caching is bypassed. This prevents the body, that contains debug data, from being stored in cache and delivered to other users.

When you include, akamai-x-ew-debug-rp in the request, the AK_EDGEWORKERS_RP_STATUS built-in variable:

• Returns an inaccurate status.
• Indicates success, even on a failure. This prevents responseProvider errors from being detected by Property Manager.
• Prevents the Site Failover behavior from responding to an EdgeWorkers failover accurately.

To resolve this issue you need to remove the akamai-x-ew-debug-rp Pragma header when testing Site Failover.

1. Use this EdgeWorkers CLI command to generate a JWT authentication token. In this example we set the token expiry to 60 minutes for the www.example.com hostname. By default, the token expiry is set at 480 for 8 hours. You can set the token expiry to a value between 1 to 720 minutes.

akamai edgeworkers auth --expiry 60 www.example.com

2. Here’s an example of an enhanced debug request header:

curl http://www.example.com -H 'Pragma: akamai-x-ew-debug, akamai-x-ew-debug-rp' -H 'Akamai-EW-Trace: eyJ0eXAiOiJKV1Qi ... iu1XOS9eJOl-54Yw

3. This example shows the trace response headers with successful execution of the responseProvider event handler:

HTTP/1.1 200 OK
Content-Type: multipart/form-data; boundary=bZsAiCmRhboH2gSI4GzC84
content-disposition: attachment
Date: Mon, 28 Jun 2021 19:09:30 GMT
Content-Length: 501
Connection: keep-alive
X-Akamai-EdgeWorker-onClientResponse-Info: ew=9 v7.0:EW for example.com; status=Success; status_msg=-; res_tier=200; init_wall_time=0; wall_time=0.855; init_cpu_time=0; cpu_time=0.159; memory_usage=96
X-Akamai-EdgeWorker-onClientRequest-Info: ew=9 v7.0:EW for example.com; status=Success; status_msg=-; res_tier=200; init_wall_time=0; wall_time=0.756; init_cpu_time=0; cpu_time=0.128; memory_usage=164
AK_EIP_FORWARDER_IP: 
--bZsAiCmRhboH2gSI4GzC84
content-type: application/octet-stream
content-disposition: form-data; name="response-provider-body"
{"time":1624907370526,"header":["from-request"]}
--bZsAiCmRhboH2gSI4GzC84
content-type: text/plain;charset=UTF-8
content-disposition: form-data; name="stream-trace"
X-Akamai-EdgeWorker-ResponseProvider-Info: ew=9 v7.0:EW for example.com; status=Success; status_msg=-; resource_tier=200; wall_time=1.923; cpu_time=0.242; memory_usage=101;req_body=streamed
--bZsAiCmRhboH2gSI4GzC84--