curl --request POST \
  --url https://sandbox.api.app.firstsales.io/api/v1/organizations/{orgId}/workspaces/{wsId}/deals \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contactId": "<string>",
  "value": 1,
  "currency": "USD",
  "pipelineId": "<string>",
  "ownerId": "<string>",
  "companyId": "<string>",
  "stageId": "<string>",
  "expectedClose": "2023-11-07T05:31:56Z",
  "labels": [
    "<string>"
  ]
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    contactId: '<string>',
    value: 1,
    currency: 'USD',
    pipelineId: '<string>',
    ownerId: '<string>',
    companyId: '<string>',
    stageId: '<string>',
    expectedClose: '2023-11-07T05:31:56Z',
    labels: ['<string>']
  })
};

fetch('https://sandbox.api.app.firstsales.io/api/v1/organizations/{orgId}/workspaces/{wsId}/deals', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "requestId": "<string>",
    "details": {}
  }
}