[Node.js] DataSet API - Import Data Into DataSet Does Not Work

Hi guys,

I'm working on DataSet API - Import Data Into Dataset: https://developer.domo.com/docs/dataset-api-reference/dataset#Import%20data%20into%20DataSet

Follow this instruction, I create an application to do this job: 

const importDataIntoDataSet = async (token, datasetID) => {
  const importDataIntoDataSetUrl = `https://api.domo.com/v1/datasets/${datasetID}/data`;
  const config = {
    headers: {
      'Content-Type': 'text/csv',
      Authorization: `bearer ${token}`
    }
  };
  await axios.put(
      importDataIntoDataSetUrl,
      '2019-05-15\r\n2019-05-15\r\n2019-05-15\r\n',
      config)
    .then(response => console.log(response));
    .catch(error => console.log(error));
};

It's quite simple, prepare data and config and replace data to datasetID.

I tried export data from this datasetID, it's working fine but with import data is not working at all.

My current data looks like (the image in attachment section), just 1 column with data:

Booking Date

Apr 19, 2019

Apr 20, 2019,

... so on

Please let me know what I'm missing because I follow instruct from Domo documentation:

https://developer.domo.com/docs/dataset-api-reference/dataset#Import%20data%20into%20DataSet

Thank you.