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tsweb: add request ID for errors

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If an optional request ID generating func is supplied to StdHandler,
then requests that return an error will be logged with a request ID that
is also shown as part of the response.

Updates tailscale/corp#2549

Change-Id: Ic7499706df42f95b6878d44d4aab253e2fc6a69b
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
This commit is contained in:
Adrian Dewhurst
2023-08-11 16:41:58 -04:00
committed by Adrian Dewhurst
parent cf31b58ed1
commit f75a36f9bc
3 changed files with 286 additions and 14 deletions
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6
tsweb/log.go
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@ -45,6 +45,12 @@ type AccessLogRecord struct {
Bytes int `json:"bytes,omitempty"`
// Error encountered during request processing.
Err string `json:"err,omitempty"`
// RequestID is a unique ID for this request. When a request fails due to an
// error, the ID is generated and displayed to the client immediately after
// the error text, as well as logged here. This makes it easier to correlate
// support requests with server logs. If a RequestID generator is not
// configured, RequestID will be empty.
RequestID RequestID `json:"request_id,omitempty"`
}
// String returns m as a JSON string.