CSV

Generic CSV marshal/unmarshal over the standard library's encoding/csv. Columns come from the csv:"name" struct tag (falling back to the field name); csv:"-" skips a field.

Marshal

type Row struct {
    Name   string `csv:"name"`
    Age    int    `csv:"age"`
    Active bool   `csv:"active"`
    Secret string `csv:"-"` // omitted
}

rows := []Row{{Name: "alice", Age: 30, Active: true}}

var buf bytes.Buffer
if err := core.CSVMarshal(&buf, rows); err != nil {
    return err
}
// buf:
// name,age,active
// alice,30,true

Writing to an HTTP response:

func Export(c core.IHTTPContext) error {
    c.Response().Header().Set("Content-Type", "text/csv")
    return core.CSVMarshal(c.Response(), rows)
}

Unmarshal

Columns are matched by header name against the tags:

rows, err := core.CSVUnmarshal[Row](reader)

API

func CSVMarshal[T any](w io.Writer, rows []T) IError
func CSVUnmarshal[T any](r io.Reader) ([]T, IError)

Supported field kinds: string, bool, all int/uint sizes, and floats.