curl --request POST \
  --url https://api-prod.blaaiz.com/api/external/customer/{customer}/document \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "type": "CERTIFICATE_OF_INCORPORATION",
  "name": "Acme Inc — Certificate of Incorporation.pdf",
  "file_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "description": "Filed 2019-03-12, Companies House"
}
'

import requests

url = "https://api-prod.blaaiz.com/api/external/customer/{customer}/document"

payload = {
    "type": "CERTIFICATE_OF_INCORPORATION",
    "name": "Acme Inc — Certificate of Incorporation.pdf",
    "file_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "description": "Filed 2019-03-12, Companies House"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    type: 'CERTIFICATE_OF_INCORPORATION',
    name: 'Acme Inc — Certificate of Incorporation.pdf',
    file_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    description: 'Filed 2019-03-12, Companies House'
  })
};

fetch('https://api-prod.blaaiz.com/api/external/customer/{customer}/document', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

require 'uri'
require 'net/http'

url = URI("https://api-prod.blaaiz.com/api/external/customer/{customer}/document")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"type\": \"CERTIFICATE_OF_INCORPORATION\",\n  \"name\": \"Acme Inc — Certificate of Incorporation.pdf\",\n  \"file_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"description\": \"Filed 2019-03-12, Companies House\"\n}"

response = http.request(request)
puts response.read_body

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api-prod.blaaiz.com/api/external/customer/{customer}/document",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'type' => 'CERTIFICATE_OF_INCORPORATION',
    'name' => 'Acme Inc — Certificate of Incorporation.pdf',
    'file_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'description' => 'Filed 2019-03-12, Companies House'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

{
  "message": "Document created successfully",
  "data": {
    "id": "019a6e10-1fb3-7b2f-8f8b-ad1e92c4017a",
    "business_customer_id": "019a6da3-4a9a-7033-81b9-12489eff13ee",
    "type": "CERTIFICATE_OF_INCORPORATION",
    "name": "Acme Inc — Certificate of Incorporation.pdf",
    "extension": "pdf",
    "description": "Filed 2019-03-12, Companies House",
    "status": "PENDING",
    "admin_comments": null,
    "url": "https://s3.amazonaws.com/...?X-Amz-Signature=...",
    "created_at": "2026-04-20T10:14:31.000000Z",
    "updated_at": "2026-04-20T10:14:31.000000Z"
  }
}

{
  "message": "Cannot modify documents while customer verification is in progress."
}

{
  "message": "Document file exceeds the 25 MB maximum."
}