Golang Decode Nested JSON into Nested Struct

Question

Lets look at the following code snippet:

type Input struct {
    Value1   string
    Value2   string
    Value3   string
    Value4   string
    Nest         
}

type Nest struct {
    ID  string
}
input := &Input{}
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&input); err != nil {
    fmt.Printf("something went wrong %v", err)
}
fmt.Printf("Json Input = %+v\n", input)

I'm sending the following via cURL:

curl -k -vvv  -X POST -d '{"value1":"test", "value2":"Somevalue", "value3":"othervalue", "Nest":{"ID": "12345"}}' http://localhost:8000/endpoint

.. and get the following output:

{Value1:test Value2:Somevalue Value3:othervalue Value4: Nest:{ID:}}

Problem:

I'm not getting a good decoding of the nested struct for some reason. Moreover, I'm not really sure if it's my code or the way I'm calling it.

lukad · Accepted Answer · 2015-06-06 21:14:20Z

4

Nest is embedded in Input.

The JSON {"value1":"test", "value2":"Somevalue", "value3":"othervalue", "ID": "12345"} will be correctly marshalled into your Input.

If you want to use the JSON body from your Question then you will have to change Input to the following

type Input struct {
    Value1   string
    Value2   string
    Value3   string
    Value4   string
    Nest     Nest    
}

edited Jun 6, 2015 at 21:14

answered Jun 6, 2015 at 20:39

lukad

17.9k3 gold badges39 silver badges56 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

TinuC Over a year ago

Strange, I thought I had tried that already. It did work this time though. Thanks!

Collectives™ on Stack Overflow

Golang Decode Nested JSON into Nested Struct

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related