Add values to map[string]interface{}

[User123]

I am new to golang. 

I am trying to create an object which looks like this:

ACK: "Success"

BUILD: "15420584"

CORRELATIONID: "1eac210c7c07a"

TIMESTAMP: "2015-03-17T11:08:47Z"

VERSION: "69.0"

ITEMS:

 0: 

  AMT: "60.00"

  CURRENCYCODE: "USD"

  EMAIL: "seller_126...@abc.com"

  FEEAMT: "0.00"

  NAME: "Test Store"

  NETAMT: "60.00"

  STATUS: "Completed"

  TIMESTAMP: "2014-03-11T07:52:05Z"

  TIMEZONE: "GMT"

  TRANSACTIONID: "9F4923492C3800000"

  TYPE: "Payment"

 1: ....

Here's the code for that. But it gives an error invalid operation: finalResult["ITEMS"]["0"] (type interface {} does not support indexing)

I don't want to use struct for finalResult since the total key and their names can vary

finalResult := make(map[string]interface{})

type itemVaues map[string]string

finalResult["ITEMS"] = make(map[string]itemVaues)

if _, ok := finalResult["ITEMS"]["0"]; !ok {

tempMap := make(itemVaues)

tempMap["ACK"] = "Success"

tempMap["CURRENCYCODE"] = "USD"

    finalResult["ITEMS"]["0"] = tempMap   

    fmt.Println("finalResult",finalResult)

}

Please help.

[Grzegorz Żur]

Hi,

You need to make type assertion of the interface{} value from map.

finalReslut["ITEMS"].(map[string]interface{})["0"]

Grzegorz Żur

[Egon]

First, use play.golang.org to submit examples/problems - it makes it easier for other people to help you.

Anyways: http://play.golang.org/p/Nli0eLxxg4

Although, I would strongly recommend using structs instead, they will make errors less likely... There probably is a nicer/cleaner solution using structs and that can satisfy your requirements.

+ Egon

[User123]

I made type assertion of final result to (map[string]itemVaues) like this: https://play.golang.org/p/z09cAZ3FIu

Is it correct?