[go-server] move errMsg helpers to helpers file

[jarangutan]

Related to #20817

Missed moving the errMsgs from the router to the helper file in this MR: #20823

Apologies about that! This MR is to complete the move so everything helper is together and router is standalone

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[wing328]

thanks for the follow-up PR

quick question: shouldn't the current output (go code) fail to compile if these constants are missing?

[jarangutan]

They won't be missing, they'll be in the helper file instead of router since the helper code is using it.

But yeah, if I was deleting them then go would throw an error for vars not existing when it went to compile. It would have also been caught by the tests since go compiles then too

Their placement works in any of these files since they're part of the package. That's why the version in master still works since helper file can use the vars in router file.

[wing328]

thanks for the explanation

will merge it over the weekend if no one else has further feedback/question

[jarangutan]

Thank you @wing328 !
Appreciate the partnership ❤️