Iteration through json with multiple API calls for other requests

I am using Postman to iterate through a JSON of about 40 pairs of items. I need to then take that array created and run an API call for each element in the array to return a set of results. Using the code here, I'm only able to pull the final element in the array. I attempted to put the postman.setNextRequest in the for loop but then I found out that no matter where it is, it always executes last.

tests["Status code is 200 (that's good!)"] = (responseCode.code === 200);

if (responseCode.code === 200) {

var jsonData = pm.response.json();
var json = [];

postman.setEnvironmentVariable("json", jsonData)
postman.setNextRequest('GetAdmins');

for (var key in jsonData ) {
    if (jsonData.hasOwnProperty(key)) {
        postman.setEnvironmentVariable("organizationId", jsonData[key].id)
        postman.setEnvironmentVariable("orgname", jsonData[key].name)
        tests[jsonData[key].name + " " + jsonData[key].id] = !!jsonData[key].name;
        }
    }
}

else {
    postman.setNextRequest(null);
}

GetAdmins is another GET that uses {{organizationId}} in the call.

I think what I'm looking for is; what is the best way to go about running another API call on each element in the JSON?

EDIT: Adding JSON output

[
    {
        "id": XXXXXX,
        "name": "Name1"
    },
    {
        "id": XXXXXX,
        "name": "Name2"
    },
    {
        "id": XXXXXX,
        "name": "Name3"
    }
]

I was able to solve this using these two guides:

1. Loops and dynamic variables in Postman: part 1
2. Loops and dynamic variables in Postman: part 2

I also had to implement the bigint fix for java, but in Postman, which was very annoying... that can be found here:

1. Hacking bigint in API testing with Postman Runner Newman in CI Environment
2. Gist

A lot of google plus trial and error got me up and running.

Thanks anyway for all your help everyone!

This ended up being my final code:

GetOrgs

tests["Status code is 200 (that's good!)"] = (responseCode.code === 200);

eval(postman.getGlobalVariable("bigint_fix"));

var jsonData = JSON.parse(responseBody);
var id_list = [];

jsonData.forEach(function(list) {
    var testTitle = "Org: " + list.name + " has id: " + JSON.stringify(list.id);
    id_list.push(list.id);
    tests[testTitle] = !!list.id;
});

postman.setEnvironmentVariable("organizationId",JSON.stringify(id_list.shift()));
postman.setEnvironmentVariable("id_list", JSON.stringify(id_list));
postman.setNextRequest("GetAdmins");

GetAdmins

eval(postman.getGlobalVariable("bigint_fix"));

var jsonData = JSON.parse(responseBody);

jsonData.forEach(function(admin) {
    var testTitle = "Admin: " + admin.name + " has " + admin.orgAccess;
    tests[testTitle] = !!admin.name;
});

var id_list = JSON.parse(environment.id_list);
if (id_list.length > 0) {
    postman.setEnvironmentVariable("organizationId", JSON.stringify(id_list.shift());
    postman.setEnvironmentVariable("id_list", JSON.stringify(id_list));
    postman.setNextRequest("GetAdmins");
}

else {
    postman.clearEnvrionmentVariable("organizationId");
    postman.clearEnvironmentVariable("id_list");
}