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36 lines
715 B
Go
36 lines
715 B
Go
package key
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import (
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"github.com/nalgeon/redka/internal/parser"
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"github.com/nalgeon/redka/internal/redis"
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)
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// Determines whether one or more keys exist.
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// EXISTS key [key ...]
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// https://redis.io/commands/exists
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type Exists struct {
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redis.BaseCmd
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Keys []string
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}
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func ParseExists(b redis.BaseCmd) (*Exists, error) {
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cmd := &Exists{BaseCmd: b}
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err := parser.New(
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parser.Strings(&cmd.Keys),
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).Required(1).Run(cmd.Args())
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if err != nil {
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return cmd, err
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}
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return cmd, nil
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}
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func (cmd *Exists) Run(w redis.Writer, red redis.Redka) (any, error) {
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count, err := red.Key().Count(cmd.Keys...)
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if err != nil {
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w.WriteError(cmd.Error(err))
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return nil, err
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}
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w.WriteInt(count)
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return count, nil
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}
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