Gin: Document how to disable the request log

[jacek99]

Even with GIN_MODE=release, gin still prints the full request log to console, which can seriously slow down performance.

We've had to disable it temporarily during performance testing by redirecting it to /dev/null.

Please document how to properly enable/disable the request log.

Thank you

[zirkome]

Do you use gin.Default() ? If so you have to use gin.New() and add the recovery middleware (if you still want it) because gin.Default() add the Logger and Recovery middleware.

[jacek99]

Ah, I see. It's probably worth documenting that to be more explicit.

Thank you for the explanation.

[mishak87]

It is documented in README.

[aequasi]

Thats not documented very well. That doesnt explain what the logger or recovery middleware are.

[appleboy]

See the PR https://github.com/gin-gonic/gin/pull/1056 improve the document.

[ldelossa]

@zirkome Even using Default() still prints out pretty verbose message when using it in unit tests. Maybe I am doing something wrong ?

[zirkome]

@ldelossa That's the thing the gin.Default() function includes a logger by default. If you want to control the logging you should use a custom Gin router with gin.New() and add whatever global middleware you want/need.