Problem
Your REST API call returns a 301
error message that may include some or all of this information:
curl -X GET 'http://rpm.newrelic.com/v2/applications/1234567890.json' \
-H 'X-Api-Key:REDACTED' -i
HTTP/1.1 301 Moved Permanently
Status: 301 Moved Permanently
Location: http://rpm.newrelic.com/v2/applications/1234567890.json
...
You are being redirected https://rpm.newrelic.com/v2/applications/1234567890.json
OR
curl -X GET 'http://rpm.newrelic.com/v2/applications/1234567890.json' \
-H 'X-Api-Key:REDACTED'
You are being redirected https://rpm.newrelic.com/v2/applications/1234567890.json
Solution
New Relic requires HTTPS for all traffic to APM and the REST API. This includes both inbound and outbound traffic. If your REST API call uses HTTP, change your script or program to HTTPS.