mirror of https://github.com/coder/coder.git
53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
package httpapi
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import (
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"encoding/json"
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"time"
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"golang.org/x/xerrors"
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)
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// Duration wraps time.Duration and provides better JSON marshaling and
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// unmarshalling. The default time.Duration marshals as an integer and only
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// accepts integers when unmarshalling, which is not very user friendly as users
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// cannot write durations like "1h30m".
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//
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// This type marshals as a string like "1h30m", and unmarshals from either a
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// string or an integer.
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type Duration time.Duration
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var (
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_ json.Marshaler = Duration(0)
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_ json.Unmarshaler = (*Duration)(nil)
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)
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// MarshalJSON implements json.Marshaler.
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func (d Duration) MarshalJSON() ([]byte, error) {
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return json.Marshal(time.Duration(d).String())
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}
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// UnmarshalJSON implements json.Unmarshaler.
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func (d *Duration) UnmarshalJSON(b []byte) error {
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var v interface{}
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err := json.Unmarshal(b, &v)
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if err != nil {
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return xerrors.Errorf("unmarshal JSON value: %w", err)
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}
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switch value := v.(type) {
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case float64:
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*d = Duration(time.Duration(value))
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return nil
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case string:
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tmp, err := time.ParseDuration(value)
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if err != nil {
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return xerrors.Errorf("parse duration %q: %w", value, err)
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}
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*d = Duration(tmp)
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return nil
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}
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return xerrors.New("invalid duration")
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}
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