Forum Discussion
Is it possible to properly log protobuf?
- Aug 14, 2025
when HTTP_REQUEST { # Check for Protobuf content-type if {[HTTP::header "Content-Type"] contains "application/proto"} { # Collect the payload (up to 1MB; adjust size if needed, but beware of performance impact) HTTP::collect [HTTP::header "Content-Length"] } } when HTTP_REQUEST_DATA { # Convert binary payload to hex for logging set payload [HTTP::payload] binary scan $payload H* hex_payload log local0. "Protobuf Payload (Hex): $hex_payload | Client IP: [IP::client_addr] | URI: [HTTP::uri]" # Optional: Release the payload to continue processing HTTP::release }
Hello,
You would need to have the traffic sent through a VIP to apply an irule that could potentially do some conversion etc.. I have not tested this so please do this in a non-prod environment! I highly recommend checking out our F5 AI Assistant Introduces iRules Code Generation for BIG-IP | F5 !
when HTTP_REQUEST {
# Check for Protobuf content-type
if {[HTTP::header "Content-Type"] contains "application/proto"} {
# Collect the payload (up to 1MB; adjust size if needed, but beware of performance impact)
HTTP::collect [HTTP::header "Content-Length"]
}
}
when HTTP_REQUEST_DATA {
# Convert binary payload to hex for logging
set payload [HTTP::payload]
binary scan $payload H* hex_payload
log local0. "Protobuf Payload (Hex): $hex_payload | Client IP: [IP::client_addr] | URI: [HTTP::uri]"
# Optional: Release the payload to continue processing
HTTP::release
}
Hello,
You would need to have the traffic sent through a VIP to apply an irule that could potentially do some conversion etc.. I have not tested this so please do this in a non-prod environment! I highly recommend checking out our F5 AI Assistant Introduces iRules Code Generation for BIG-IP | F5 !
- neeeewbieAug 19, 2025
MVP
How can I use this AI assistant?
Is it free?- Jeffrey_GranierAug 19, 2025
Employee
Its best to reach out to your F5 Account Team/SE on getting AI assistant setup, its currently free 😀 You can also paste in previous iRules and ask the assistant to explain its functions, very helpful when taking over iRules that others have written
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