Why does readMap return an array?

[guybe7]

first of all, I'm extremely new to golang, so sorry in advance if what I'm saying doesn't make much sense

func readMap(i *bufio.Reader) (m RedisMessage, err error) {
	length, err := readI(i)
	if err == errChunked {
		m.values, err = readE(i)
	} else {
		m.values, err = readA(i, int(length*2))
	}
	if err != nil {
		return RedisMessage{}, err
	}
	return
}

IIUC readMap will assign m.values, which is an array.
shouldn't RedisMessage have a map member?

[rueian]

Hi @guybe7,

The RedisMessage is just an intermediate container. It could have a map member of course, but that would make it a bigger struct. Reusing the values field is enough for holding map response temporary.

[guybe7]

hi @rueian thanks for the quick reply.

i guess my question is: if I execute Hgetall, will the returned reply be of type map?

[rueian]

You can use RedisMessage.AsStrMap to get a map:

c, _ := rueidis.NewClient(rueidis.ClientOption{InitAddress: []string{"127.0.0.1:6377"}})
defer c.Close()

m, _ := c.Do(context.Background(), c.B().Hgetall().Key("key").Build()).AsStrMap()

for key, value := range m {
	fmt.Println(key, value)
}

Error handling is omitted.

[guybe7]

thanks!