I wants to assign a map to an interface where underlying value is of type map[string]interface.
type Data struct{
data interface{}
}
result := make(map[string]interface{})
data := Data{
data:result
}
details := make(map[string]interface{})
details["CreatedFor"] = "dfasfasdf"
details["OwnedBy"] = "fasfsad"
How can I insert details value to data interface inside Data struct ?
To be able to treat an interface as a map, you need to type check it as a map first.
I've modified your sample code a bit to make it clearer, with inline comments explaining what it does:
package main
import "fmt"
func main() {
// Data struct containing an interface field.
type Data struct {
internal interface{}
}
// Assign a map to the field.
type myMap map[string]interface{}
data := Data{
internal: make(myMap),
}
// Now, we want to access the field again, but as a map:
// check that it matches the type we want.
internalMap, ok := data.internal.(myMap)
if !ok {
panic("data.internal is not a map")
}
// Now what we have the correct type, we can treat it as a map.
internalMap["CreatedFor"] = "dfasfasdf"
internalMap["OwnedBy"] = "fasfsad"
// Print the overall struct.
fmt.Println(data)
}
This outputs:
{map[CreatedFor:dfasfasdf OwnedBy:fasfsad]}
