metadata

func Get ¶

func Get(addr resolver.Address) metadata.MD

Get returns the metadata of addr.

func Set ¶

func Set(addr resolver.Address, md metadata.MD) resolver.Address

Set sets (overrides) the metadata in addr.

When a SubConn is created with this address, the RPCs sent on it will all have this metadata.

func Validate ¶ added in v1.46.0

func Validate(md metadata.MD) error

Validate validates every pair in md with ValidatePair.

func ValidatePair ¶ added in v1.54.0

func ValidatePair(key string, vals ...string) error

ValidatePair validate a key-value pair with the following rules (the pseudo-header will be skipped) :

- key must contain one or more characters. - the characters in the key must be contained in [0-9 a-z _ - .]. - if the key ends with a "-bin" suffix, no validation of the corresponding value is performed. - the characters in the every value must be printable (in [%x20-%x7E]).