output

func IsNoColor ¶

func IsNoColor() bool

IsNoColor returns true when the NO_COLOR environment variable is set.

func Print ¶

func Print(w io.Writer, data any, format string, fields string) error

Print formats data to the given writer in the specified format, optionally filtering fields. data: any JSON-serializable value (struct, map, slice). format: "json" | "table" | "csv". fields: comma-separated field names to include (empty string means all fields).

func PrintError ¶

func PrintError(w io.Writer, err error) error

PrintError writes a structured JSON error to the given writer.

For *meta.GraphError: includes message, code, subcode, trace_id, and — when Meta provided them — user_title and user_message (surfaced from error_user_title / error_user_msg). These are the developer-facing explanations Meta writes to describe what went wrong and how to fix it, so they are rendered as first-class fields on our error shape.

For other errors: includes message only.

The new user_title / user_message keys are additive and omitted when empty, so existing consumers that only read message/code/subcode/trace_id see no shape change.