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Question

I receive from a Redis store a 2D array as string:

func main() {
    client := setRedisClient()
    data, err := client.Get(redisKey).Result()
    // store data as a 2D slice
}

Here is an example of what data might look like:

[["a", "b"], ["c", "d"], ["e", "f"]]

Ideally, I'd like to be able to have a 2D slice since I need to be able to use indices:

dataAsSlice := [][]string {{"a", "b"}, {"c", "d"}, {"e", "f"}} 
fmt.Println(dataAsSlice[0][0]) => "a"

I haven't found a way to parse a response from redis and store is as a 2D slice.

How could I achieve this? Is even storing is as a 2D slice the best way?

Answer 1

Since your string is JSON, you can convert it to a [][]string{} by using json.Unmarshal as follows:

str := `[["a", "b"], ["c", "d"], ["e", "f"]]`
var dataAsSlice [][]string
err := json.Unmarshal([]byte(str), &dataAsSlice)

You can see this in action on Go Playground: https://play.golang.org/p/NEpIKc9Fl-s