APIError creates an error instance based on error message and HTTP response returned from API call.

AsMap converts a list of strings with name:value (with optional quotes) into a *map[string]string.

CheckVersion checks the server version of the Span API and emits a warning if there's a version mismatch.

DateFormat formats a date to RFC3339 if the date formatting flag is set.

DumpToTable writes a struct to a table writer with one row for each field.

EllipsisString returns a string no longer than n.

LocalTimeFormat formats a timestamp string into local time.

NewSpanAPIClient creates a new SpanAPI client based on the command line options and/or defaults.

NewTableOutput creates a new table writer with the specified settings.

NewSpanAPIClient creates a new SpanAPI client based on the command line options and/or defaults.

PayloadFormat formats the payload.

ReadCredentials reads credentials from a local file.

RemoveCredentials removes the local credentials file.

RenderTable renders the table according to settings.

TagsToString converts a map of tags into a string with key:value fields.

WriteCredentials writes (JWT) credentials to a local file.

ExpectedVersion is the expected API version we'll use.