const options = {
  method: 'POST',
  headers: {
    'x-partner': '<x-partner>',
    'x-organization-id': '<x-organization-id>',
    'x-api-key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({ignore_errors: false})
};

fetch('https://api.dcycle.io/v2/imports/{import_id}/submit', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "status": "<string>",
  "rows_submitted": 123,
  "file_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "processing_job_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}