I was looking for a configuration parser for go and https://github.com/spf13/viper seems to come highly recommended.
I am very surprised to find that configuration files are not validated by default.
Viper parses files and extracts requested values from them but I cannot find a way to detect bad configuration.
For instance I if create a (Java style) .properties file containing just “???” and nothing else. This is accepted without any error.
I can understand the philosophy that you should ignore irrelevant configuration items but I desire more rigor. I would also like to reject anything that does not match the X=Y format in a properties file.
To me this is a fatal flaw that suggests I should use a different package (or roll my own as usual).
Have I missed something? Does viper in fact support detecting and rejecting bad configuration keys?
I think the answer is no. viper does not validate java .properties files.
I posted a bug report (or feature request depending on your point of view) as https://github.com/spf13/viper/issues/790
Answered By – Bruce Adams
Answer Checked By – Robin (GoLangFix Admin)