Create struct for complex JSON array in Golang - json

Question

I have the following JSON array that I'm trying to convert to a struct.
[
{
"titel": "test 1",
"event": "some value",
"pair": "some value",
"condition": [
"or",
[
"contains",
"url",
"/"
]
],
"actions": [
[
"option1",
"12",
"1"
],
[
"option2",
"3",
"1"
]
]
}, {
"titel": "test 2",
"event": "some value",
"pair": "some value",
"condition": [
"or",
[
"contains",
"url",
"/"
]
],
"actions": [
[
"option1",
"12",
"1"
],
[
"option2",
"3",
"1"
]
]
}
]
This is the struct I've got so far:
type Trigger struct {
Event string `json:"event"`
Pair string `json:"pair"`
Actions [][]string `json:"actions"`
Condition []interface{} `json:"condition"`
}
type Triggers struct {
Collection []Trigger
}
However, this does not really cover the "Condition" part. Ideally id like to have a structure for that as well.

Answer 1

Assuming that there can be only a single condition per item in the root array, you can try a struct below. This could make using Condition clear.
https://play.golang.org/p/WxFhBjJmEN
type Trigger struct {
Event string `json:"event"`
Pair string `json:"pair"`
Actions [][]string `json:"actions"`
Condition Condition `json:"condition"`
}
type Condition []interface{}
func (c *Condition) Typ() string {
return (*c)[0].(string)
}
func (c *Condition) Val() []string {
xs := (*c)[1].([]interface{})
ys := make([]string, len(xs))
for i, x := range xs {
ys[i] = x.(string)
}
return ys
}
type Triggers struct {
Collection []Trigger
}