curl --request POST \
  --url https://sandbox.api.app.firstsales.io/api/v1/organizations/{orgId}/workspaces/{wsId}/contact-imports \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contacts": [
    {
      "email": "<string>",
      "firstName": "<string>",
      "lastName": "<string>",
      "fullName": "<string>",
      "headline": "<string>",
      "linkedinUrl": "<string>",
      "company": "<string>",
      "title": "<string>",
      "phone": "<string>",
      "location": {
        "city": "<string>",
        "state": "<string>",
        "country": "<string>"
      },
      "enrichment": {
        "source": "<string>",
        "enrichedAt": "2023-11-07T05:31:56Z"
      },
      "timezone": "<string>",
      "customFields": {},
      "tags": [
        "<string>"
      ]
    }
  ],
  "listId": "<string>",
  "source": "csv-import",
  "tags": [
    "<string>"
  ],
  "idempotencyKey": "<string>"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    contacts: [
      {
        email: '<string>',
        firstName: '<string>',
        lastName: '<string>',
        fullName: '<string>',
        headline: '<string>',
        linkedinUrl: '<string>',
        company: '<string>',
        title: '<string>',
        phone: '<string>',
        location: {city: '<string>', state: '<string>', country: '<string>'},
        enrichment: {source: '<string>', enrichedAt: '2023-11-07T05:31:56Z'},
        timezone: '<string>',
        customFields: {},
        tags: ['<string>']
      }
    ],
    listId: '<string>',
    source: 'csv-import',
    tags: ['<string>'],
    idempotencyKey: '<string>'
  })
};

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

{}

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