如何解析字段名称中具有随机哈希值的golang json数组[关闭]

Question

I'm trying to parse JSON from API in golang code. Of passed with true option argument it gives different additional info and with false different output. I have covered that in the following golang play link: https://play.golang.org/p/-JffO4AS01N

I need to parse the value of variable mtJson.

Used the Json to Go (https://mholt.github.io/json-to-go/) converted to get help in creating the struct type for this. But it was giving following struct type for the json example:

{
"result": {
"99c4d91acc2486955c98015fbbdf06239b983c9d93d5069c39d040702af88738": {
"size": 845,
"fee": 0.000144,
"time": 1547444481,
"height": 1183405,
"startingpriority": 89509.20245398773,
"currentpriority": 89509.20245398773,
"depends": []
},
"73f582cf419f8b1cd6a87f81e0e9a4e783add27c2be083361e8eb4a3bac0134e": {
"size": 1635,
"fee": 0.000312,
"time": 1547444435,
"height": 1183405,
"startingpriority": 341863.3540372671,
"currentpriority": 341863.3540372671,
"depends": []
}
},
"error": null,
"id": "curltest"
}

type AutoGenerated struct {
    Result struct {
        Nine9C4D91Acc2486955C98015Fbbdf06239B983C9D93D5069C39D040702Af88738 struct {
            Size             int           `json:"size"`
            Fee              float64       `json:"fee"`
            Time             int           `json:"time"`
            Height           int           `json:"height"`
            Startingpriority float64       `json:"startingpriority"`
            Currentpriority  float64       `json:"currentpriority"`
            Depends          []interface{} `json:"depends"`
        } `json:"99c4d91acc2486955c98015fbbdf06239b983c9d93d5069c39d040702af88738"`
        Seven3F582Cf419F8B1Cd6A87F81E0E9A4E783Add27C2Be083361E8Eb4A3Bac0134E struct {
            Size             int           `json:"size"`
            Fee              float64       `json:"fee"`
            Time             int           `json:"time"`
            Height           int           `json:"height"`
            Startingpriority float64       `json:"startingpriority"`
            Currentpriority  float64       `json:"currentpriority"`
            Depends          []interface{} `json:"depends"`
        } `json:"73f582cf419f8b1cd6a87f81e0e9a4e783add27c2be083361e8eb4a3bac0134e"`
    } `json:"result"`
    Error interface{} `json:"error"`
    ID    string      `json:"id"`
}

This doesn't seem right.

The value of the string hash key will be always different not determined, so can not just set that as is in struct.

I'm feeling confused on how to parse the JSON so that I can finally get the values like this:

fmt.Println(mt.Result.("99c4d91acc2486955c98015fbbdf06239b983c9d93d5069c39d040702af88738").Size)

fmt.Println(mt.Result.("99c4d91acc2486955c98015fbbdf06239b983c9d93d5069c39d040702af88738").Fee)

Please help

I have covered that in the following golang play link: https://play.golang.org/p/-JffO4AS01N

I have covered that in the following golang play link: https://play.golang.org/p/-JffO4AS01N

Expected: fmt.Println(mt.Result.("99c4d91acc2486955c98015fbbdf06239b983c9d93d5069c39d040702af88738").Size) 845

fmt.Println(mt.Result.("99c4d91acc2486955c98015fbbdf06239b983c9d93d5069c39d040702af88738").Fee) 0.000144

Actual Result: {{0 0 0 0 0 0 []}}

Answer 1

Since the keys are not known, you have to resort to a dynamic data structure.

Define the single element like:

type Element struct {
            Size             int           `json:"size"`
            Fee              float64       `json:"fee"`
            Time             int           `json:"time"`
            Height           int           `json:"height"`
            Startingpriority float64       `json:"startingpriority"`
            Currentpriority  float64       `json:"currentpriority"`
            Depends          []interface{} `json:"depends"`
}

Then parse your json to a map[string]Element like so:

result := make(map[string]Element)
json.Unmarshal(jsonBytes, &result)