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38 lines
716 B
Go
38 lines
716 B
Go
package string
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import (
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"github.com/nalgeon/redka/internal/core"
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"github.com/nalgeon/redka/internal/redis"
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)
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// Get returns the string value of a key.
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// GET key
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// https://redis.io/commands/get
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type Get struct {
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redis.BaseCmd
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Key string
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}
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func ParseGet(b redis.BaseCmd) (*Get, error) {
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cmd := &Get{BaseCmd: b}
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if len(cmd.Args()) != 1 {
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return cmd, redis.ErrInvalidArgNum
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}
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cmd.Key = string(cmd.Args()[0])
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return cmd, nil
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}
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func (cmd *Get) Run(w redis.Writer, red redis.Redka) (any, error) {
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val, err := red.Str().Get(cmd.Key)
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if err == core.ErrNotFound {
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w.WriteNull()
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return val, nil
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}
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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.WriteBulk(val)
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return val, nil
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}
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