dropbox2mackerel.gs

function main() {
  var mackerelApiKey = "YOUR_MACKEREL_API_KEY";
  var dropBoxAccessToken = "YOUR_DROPBOX_ACCESS_TOKEN"
  var serviceName = "YOUR_SERVICE_NAME"

  var dropBoxUsageRes = JSON.parse(getDropBoxUsage(dropBoxAccessToken).getContentText())
  var usedBytes = dropBoxUsageRes.used;
  var allocatedBytes = dropBoxUsageRes.allocation.allocated;
  var epoch = Date.now() / 1000;
  var payload = [
    {"name" : "dropbox.used", "time" : epoch, "value" : usedBytes},
    {"name" : "dropbox.allocated", "time" : epoch, "value" : allocatedBytes}
  ];
  Logger.log(payload)
  var mackerelPostRes = postMackerelServiceMetric(mackerelApiKey, serviceName, payload);
  Logger.log(mackerelPostRes)
}

function postMackerelServiceMetric(apiKey, serviceName, payload) {
  return UrlFetchApp.fetch(
    "https://mackerel.io/api/v0/services/" + serviceName + "/tsdb",
    {
    "contentType" : "application/json",
    "method" : "post",
    "headers" : {
      "X-Api-Key" : apiKey
    },
    "payload" : JSON.stringify(payload),
    "muteHttpExceptions" : true
    }
  );
}

function getDropBoxUsage(apiKey) {
  return UrlFetchApp.fetch(
    "https://api.dropboxapi.com/2/users/get_space_usage",
    {
      "method" : "post",
      "contentType" : "application/json",
      "payload" : "null",
      "headers" : {
        "Authorization" : "Bearer " + apiKey
      },
      "muteHttpExceptions" : true // for debug
    }
  );
}