util

func AddMetadataToContext ¶

func AddMetadataToContext(ctx context.Context, metadataStrings []string) context.Context

AddMetadataToContext parses metadata strings in the format "Key:Value" and adds them to the context

func CallService ¶

func CallService(srv *registry.Service, args []string) error

CallService will call a service using the arguments and flags provided in the context. It will print the result or error to stdout. If there was an error performing the call, it will be returned.

func CliError ¶

func CliError(err error) cli.ExitCoder

CliError returns a user friendly message from error. If we can't determine a good one returns an error with code 128

func FlagsToRequest ¶

func FlagsToRequest(flags map[string][]string, req *registry.Value) (map[string]interface{}, error)

FlagsToRequest parses a set of flags, e.g {name:"Foo", "options_surname","Bar"} and converts it into a request body. If the key is not a valid object in the request, an error will be returned.

This function constructs []interface{} slices as opposed to typed ([]string etc) slices for easier testing

func FormatServiceUsage ¶

func FormatServiceUsage(srv *registry.Service, c *cli.Context) string

FormatServiceUsage returns a string containing the service usage.

func LookupService ¶

func LookupService(name string) (*registry.Service, error)

LookupService queries the service for a service with the given alias. If no services are found for a given alias, the registry will return nil and the error will also be nil. An error is only returned if there was an issue listing from the registry.

func Print ¶

func Print(e Exec) func(*cli.Context) error

func ShouldRenderHelp ¶

func ShouldRenderHelp(args []string) bool

ShouldRenderHelp returns true if the help flag was passed