Nivis Versa Router 1100 Titan, User Manual

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Nivis Versa Router 1100 Titan - User Guide v1.2 Page 29 of 111
While most HTTP status codes returned are a direct translation from the CoAP corresponding response code,
there are several error codes that may be sent by the proxy.
HTTP Request HTTP Error
Code Details
Any request 504 Gateway
Timeout
The request could not be handled in the configured time interval.
Response string : “Gateway Timeout”
501 Not
Implemented
The request could not be parsed.
Response string : “Can't parse Http request”
400 Bad
Request
The HTTP request is not valid and therefore cannot be handled.
Response string : “Invalid request”
Device resource
request 501 Not
Implemented
The request could not be sent over the CoAP interface at this time.
Response string : “Can't SendRequestToCoap”
The requested resource could not be created locally.
Response string : “Can't AddReqRspResource”
502 Bad
Gateway
Decoding error.
Response string : “Can't convert Coap response to Http response, Exi to
Xml failed”
409 Conflict A no-cache HTTP request was made for an observed resource. Requests
for observed resources may not bypass the cache and such a request
should not be attempted.
Response string : “Can't bypass cache for an observed resource”
504 Gateway
Timeout
There was no response from the CoAP interface in the configured
timeout interval.
Response string : “Gateway Timeout”
Another request for the same resource was already made and has not yet
been answered.
Response string : “Another request for this resource was sent before”
An observable resource is in the subscribing process, and thus a new
request for the resource will not be made and data will only be available
once the subscription is established.
Response string : ”Resource is in subscription process”
Observe
resources 400 Bad
Request
The XML observation request was badly formed.
Response string : “Invalid query”