In Golang, how can we convert snake_case keys in a JSON to camelCase ones recursively?
I am writing one http api in golang. This api fetches data from datastore, does some computation and return the response as JSON.
Situation is that the JSON document in the datastore (elasticsearch) is present with snake_case keys while the API response should be camelCase based (this is just to align with other api standard within project). The source which inserts into ES can't be modified. So its only at the api level keys conversion has to take place.
I have written a struct which is reading JSON from datastore nicely. But how can I convert the keys to camlelCase in golang?
The JSON is can be nested and all keys has to be converted. The JSON is arbitrarily large. i.e. some keys are just mapped to type interface{}
I am also using go's echo framework for writing the api.
Ex.
{
"is_modified" : true,
{ attribute":
{
"legacy_id" : 12345
}
}
}
TO
{
"isModified" : true,
{ attribute":
{
"legacyId" : 12345
}
}
}
Any pointers on how to do this in golang?
Thanks.
Struct:
type data_in_es struct {
IsModified bool `json:"is_modified,omitempty"`
Attribute *attribute `json:"attribute,omitempty"`
}
type attribute struct {
LegacyId int `json:"legacy_id,omitempty"`
}