token = (function(app_id, api_key, app_target) {
var token_url = app_target.hostname + '/api/client/v2.0/app/' + app_id + '/auth/providers/api-key/login';
var token = d3.json(token_url, {
method: 'POST',
headers: {
'Content-Type': "application/json",
},
body: '{"key": "' + api_key + '"}'
});
return token;
})(app_id, api_key, app_target);