How to add arraylist into Map

Question

I'm trying to mimic this structure to post data to Mailchimp, I'm using volley

{
 "email_address": "[email protected]",
    "status": "subscribed",
    "merge_fields": {
        "FNAME": "testmailchimp",
        "LNAME": "testingit",
     }  
}

I have done this, but I need to add the FNAME and LNAME and I don't know how to do it right

 @Override
            protected Map<String,String> getParams(){
                Map<String,String> params = new HashMap<String, String>();
                params.put("email_address","[email protected]");
                params.put("status","unsubscribed");
                //here i want to add the arraylist FNAME and LNAME
                return params;
            }

Update

I solved my problem with this:

final JSONObject jsonBody = new JSONObject("{\"email_address\":\"[email protected]\"," +
                "\"status\":\"unsubscribed\"," +
                "\"merge_fields\":{\"FNAME\":\"test\",\"LNAME\":\"teste\"}}");

So with this I can do the JSON how I want without maps, and then validate it here https://jsonlint.com/.

Napster · Accepted Answer · 2018-01-15 18:07:22Z

1

It's not an ArrayList it would be a Map. You can do it using this code

HashMap<String,String> merge_fields = new HashMap<>();
merge_fields.put("FNAME","testmailchimp");
merge_fields.put("LNAME","testingit");
String merge_fields_param = new JSONObject(merge_fields).toString();
params.put("merge_fields",merge_fields_param);

answered Jan 15, 2018 at 18:07

Napster

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5 Comments

Gastón Saillén Over a year ago

I logged the output but somehow I'm messing the previous steps. This is what I'm getting: {status=subscribed, merge_fields={"FNAME":"testmailchimp","LNAME":"testingit"}, [email protected]} And I need the same structure as in the post

Napster Over a year ago

I think what you need is a Json object but the volley params aren't giving you that. Instead they are individual params

Gastón Saillén Over a year ago

if i use postman with raw and i imput what i ask in the question, the first json text , it posts to me correctly , but im trying to mimic that structure inside my app to send it to the mailchimp, but i cant do it

Napster Over a year ago

I think you need to use JsonObjectRequest. Look at this link and provide these params through the JsonRequest object

Gastón Saillén Over a year ago

final JSONObject jsonBody = new JSONObject("{\"email_address\":\"[email protected]\"," + "\"status\":\"unsubscribed\"," + "\"merge_fields\":{\"FNAME\":\"test\",\"LNAME\":\"testero\"}}");

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