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29 lines
567 B
Go
29 lines
567 B
Go
package server
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import "github.com/nalgeon/redka/internal/redis"
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// Returns the number of keys in the database.
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// DBSIZE
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// https://redis.io/commands/dbsize
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type DBSize struct {
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redis.BaseCmd
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}
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func ParseDBSize(b redis.BaseCmd) (DBSize, error) {
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cmd := DBSize{BaseCmd: b}
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if len(cmd.Args()) != 0 {
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return DBSize{}, redis.ErrInvalidArgNum
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}
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return cmd, nil
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}
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func (cmd DBSize) Run(w redis.Writer, red redis.Redka) (any, error) {
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n, err := red.Key().Len()
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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(n)
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return n, nil
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}
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