Intermittent 404 error with an API proxy

[#1]

As the subject mentions. We are getting intermittent 404 errors when requesting one of our APIs. An example of the request being made is this one:

https://intcomex-prod.apigee.net/v1/placeorder?apiKey=1905266f-2ed3-4061-a81d-f3939b6a610b&utcTimeSt...

The response for this request is sometimes the expected one (it should be a 401 response), but other times it responds with a 404 error and the following content:

{
    "fault": {
        "faultstring": "Unable to identify proxy for host: secure and url: /v1/placeorder",
        "detail": {
            "errorcode": "messaging.adaptors.http.flow.ApplicationNotFound"
        }
    }
}

Please help us in fixing this error because it is causing issues with some of our customers. Thank you!

[sidd-harth]

Hi @Gabriel Salama, please have a look at below troubleshooting guide,

https://docs.apigee.com/api-platform/troubleshoot/runtime/404-unable-identify-proxy-host

If problem persists, get in touch with Apigee support.

[#3 · Accepted solution]

Hi,

Unfortunately, the troubleshooting guide did not help. It doesn't mention anything about the problem happening at random without changing a single character from either the request or the body. This is what was happening to us. You made a request one time, it worked. You made the same exact request a second time, 404 error.

However, I opened a ticket on the support portal and they told me that they reset the message processors and that doing that seemed to stop the errors.

I then checked again and indeed, the random 404 errors were no longer happening, so it seems to be fixed now.

Thank you!