curl --request POST \
  --url https://api.sigma.pastel.africa/api/v1/edd/process-upload \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: multipart/form-data' \
  --form 'requestId=<string>' \
  --form documentType=bvn_slip \
  --form 'customerId=<string>' \
  --form file=@example-file

{
  "success": true,
  "message": "<string>",
  "data": {
    "documentId": "<string>",
    "documentType": "<string>",
    "status": "processing",
    "confidence": 0.5,
    "extractedData": {},
    "processedAt": "2023-11-07T05:31:56Z"
  }
}