Function withVersion

client/v3/ctx.go:41–51

embeds client version

(ctx context.Context)

// embeds client version
func withVersion(ctx context.Context) context.Context {
	md, ok := metadata.FromOutgoingContext(ctx)
	if !ok { // no outgoing metadata ctx key, create one
		md = metadata.Pairs(rpctypes.MetadataClientAPIVersionKey, version.APIVersion)
		return metadata.NewOutgoingContext(ctx, md)
	}
	copied := md.Copy() // avoid racey updates
	// overwrite/add version key/value
	copied.Set(rpctypes.MetadataClientAPIVersionKey, version.APIVersion)
	return metadata.NewOutgoingContext(ctx, copied)
}