curl -X POST "https://app.emailx.ai/api/v1/workspaces/123/contacts/imports/preview" \
  -H "Authorization: Bearer $EMAILX_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: example-operation-001" \
  --data '{"file_base64":"RW1haWwKYWRhQGV4YW1wbGUudGVzdAo=","filename":"contacts.csv","mapping":{"email":"Email"},"channel":"email","offset":0,"limit":25}'

import os, requests

response = requests.post(
    "https://app.emailx.ai/api/v1/workspaces/123/contacts/imports/preview",
    headers={"Authorization": "Bearer " + os.environ["EMAILX_API_KEY"], "Idempotency-Key": "example-operation-001"},
    json={'file_base64': 'RW1haWwKYWRhQGV4YW1wbGUudGVzdAo=', 'filename': 'contacts.csv', 'mapping': {'email': 'Email'}, 'channel': 'email', 'offset': 0, 'limit': 25},
    timeout=30,
)
response.raise_for_status()
print(response.json())

const response = await fetch("https://app.emailx.ai/api/v1/workspaces/123/contacts/imports/preview", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.EMAILX_API_KEY}`, "Content-Type": "application/json", "Idempotency-Key": "example-operation-001" },
  body: JSON.stringify({"file_base64": "RW1haWwKYWRhQGV4YW1wbGUudGVzdAo=", "filename": "contacts.csv", "mapping": {"email": "Email"}, "channel": "email", "offset": 0, "limit": 25}),
  signal: AbortSignal.timeout(30000),
});
if (!response.ok) throw new Error(`Emailx: ${response.status}`);
console.log(await response.json());

{
  "data": {
    "workspace_id": 1,
    "channel": "email",
    "mapping": {
      "name": "example",
      "last_name": "example",
      "email": "example",
      "company": "example",
      "title": "example",
      "location": "example",
      "website": "example",
      "linkedin": "example"
    },
    "rows": [],
    "totals": {
      "total_rows": 1,
      "eligible_rows": 1,
      "existing_rows": 1,
      "created_rows": 1,
      "blocked_rows": 1
    },
    "fingerprint": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    "total_rows": 1,
    "offset": 1,
    "limit": 1,
    "has_more": false,
    "identity_matching": {
      "email": "example",
      "linkedin": "example",
      "candidate_limit": 1
    }
  }
}

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

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

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

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

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

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

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

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

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

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