Go和JSON：如何动态加载字段

I know how to play with JSON and interfaces in go without too many problems.

I would like to let users choose a JSON element from a JSON string and to store the element pattern in a string so that I can dynamically load it later. I have the following JSON:

{
    "id": 1,
    "name": "A green door",
    "price": 12.50,
    "tags": ["home", "green"]
}

Of course this is easy if I want the id element of my JSON , as id is the string I'm going to save.

Now let's say I want tags[1].

You can see this gets harder and harder as the JSON gets more complicated. For example I could want to save a pattern similar to tags[1].data[0].values.id and so on...

Basically I need to get a well defined element from my JSON and need to save the pattern to a string.

Does GO have a solution to this kind of problem without me implementing my own string parser?

There are several packages that I can think of that have tools to solve problems like this. Here are some examples off the top of my head:

1) github.com/jmoiron/jsonq

jq := jsonq.NewQuery(yourData)
jq.Int("id")
jq.String("tags", "0")

2) github.com/araddon/gou:

jh := gou.NewJsonHelper(yourData)
jh.Int("id")
jh.Strings("tags[0]")

3) https://github.com/elgs/gojq

The packages are very similar, but slightly different function structure.