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38 lines
669 B
Go
38 lines
669 B
Go
package conn
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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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const (
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PONG = "PONG"
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)
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// Returns the server's liveliness response.
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// https://redis.io/commands/ping
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type Ping struct {
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redis.BaseCmd
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message string
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}
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func ParsePing(b redis.BaseCmd) (*Ping, error) {
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cmd := &Ping{BaseCmd: b}
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err := parser.New(
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parser.String(&cmd.message),
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).Required(0).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 (c *Ping) Run(w redis.Writer, _ redis.Redka) (any, error) {
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if c.message == "" {
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w.WriteAny(PONG)
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return PONG, nil
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}
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w.WriteBulkString(c.message)
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return c.message, nil
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}
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