Here's a quick-glued reflect example.
https://play.golang.org/p/blpmIVKhuc4
If you try using switch value.(type) instead of using reflect, bool will be
reported as int, fyi, so using reflect here.
On Wednesday, 2 June 2021 at 16:02:36 UTC+1 Robert Glonek wrote:
> The json is not very strict, while go is. It would be good if the json
> struct could potentially be strictly of same type all over the place.
> Implementing parser for this json in any language will be a bit of a pain
> with some try/except...
>
> If you really need to do so, you would need to have the Value as type
> interface{} and then use Reflect to find out if it's a struct, or bool or
> int and cast it accordingly to it's type. But really, would be easier if
> the value field was uniform, no matter the language used.
>
> So in other words:
> 1. unmarshal using interface
> 2. reflect to find type
> 3. cast to a new variable for the select type
>
> type Autogenerated struct {
> AllParameters []struct {
> Priority int `json:"priority"`
> CreatedAt string `json:"created_at"`
> UpdatedAt string `json:"updated_at"`
> ID int `json:"id"` Name string `json:"name"`
> ParameterType string `json:"parameter_type"`
> Value interface{} `json:"value"`
> valueAsInt int
> valueAsBool bool
> valueAsMap map[string]interface{}
> } `json:"all_parameters"`
> }
>
> Example here:
> https://play.golang.org/p/PWHz_g_jabz
>
>
> On Wednesday, 2 June 2021 at 14:15:50 UTC+1 [email protected] wrote:
>
>> hi,
>>
>> I have this json back from an api:
>>
>> {
>> "all_parameters": [{
>> "priority": 60,
>> "created_at": "2021-06-02 12:15:13 UTC",
>> "updated_at": "2021-06-02 12:15:13 UTC",
>> "id": 28,
>> "name": "network_interface_mapping",
>> "parameter_type": "yaml",
>> "value": {
>> "interface1": "eno1",
>> "interface2": "eno2",
>> "interface3": "eno3",
>> "interface4": "eno4"
>> }
>> },
>> {
>> "priority": 60,
>> "created_at": "2021-06-02 12:15:13 UTC",
>> "updated_at": "2021-06-02 12:15:13 UTC",
>> "id": 27,
>> "name": "component_1",
>> "parameter_type": "boolean",
>> "value": true
>> },
>> {
>> "priority": 50,
>> "created_at": "2021-03-19 14:34:26 UTC",
>> "updated_at": "2021-03-19 14:34:26 UTC",
>> "id": 15,
>> "name": "url1",
>> "parameter_type": "string",
>> "value": "http://www.example.org/1";
>> }
>> ]
>> }
>>
>> If I use the json2go service, then it simplifies the values like this:
>>
>>
>> type Autogenerated struct {
>> AllParameters []struct {
>> Priority int `json:"priority"`
>> CreatedAt string `json:"created_at"`
>> UpdatedAt string `json:"updated_at"`
>> ID int `json:"id"` Name string `json:"name"`
>> ParameterType string `json:"parameter_type"`
>> Value struct {
>> Interface1 string `json:"interface1"`
>> Interface2 string `json:"interface2"`
>> Interface3 string `json:"interface3"`
>> Interface4 string `json:"interface4"`
>> } `json:"value"`
>> } `json:"all_parameters"`
>> }
>>
>> so the value struct has the values of just the first parameter, in fact.
>> The other parameters have different values, could be a boolean or a string.
>>
>> How can I use this in my client script? Unmarhalling into this struct
>> type gives me obviously errors
>>
>> Error: json: cannot unmarshal object into Go struct field
>> .all_parameters.value of type string
>>
>> Thanks in advance for your input.
>>
>> Regards,
>> Natxo
>>
>
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