{
  "customer_external_id": "string",
  "display_name": "string",
  "external": {
    "file_size": "integer",
    "file_url": "string"
  },
  "file_name": "string",
  "internal": {
    "FileData": [
      "integer"
    ],
    "file_data": "string"
  },
  "origin": {
    "type": {},
    "value": "string"
  },
  "tag_codes": [
    "string"
  ]
}

  const response = await fetch(
    "POST /api/v1/customer_documents/upload",
    {
      method: "post",
      headers: {
        "Content-Type": "application/json",
        "Authorization": `Bearer {token}`
      },
      body: JSON.stringify({
  "customer_external_id": "string",
  "display_name": "string",
  "external": {
    "file_size": "integer",
    "file_url": "string"
  },
  "file_name": "string",
  "internal": {
    "FileData": [
      "integer"
    ],
    "file_data": "string"
  },
  "origin": {
    "type": {},
    "value": "string"
  },
  "tag_codes": [
    "string"
  ]
})
    }
  );
            
          

{
  "created_at": "integer",
  "customer_external_id": "string",
  "display_name": "string",
  "file_mime": "string",
  "file_name": "string",
  "file_size": "integer",
  "file_source": "string",
  "file_type": "string",
  "file_url": "string",
  "id": "string",
  "last_revision_agent_id": "integer",
  "last_revision_created_at": "integer",
  "last_revision_id": "string",
  "origin": {
    "type": {},
    "value": "string"
  },
  "tags": [
    "string"
  ]
}

{
  "errors": [
    {
      "code": "string",
      "deprecated": "boolean",
      "message": "string",
      "will_be_deprecated": "boolean"
    }
  ]
}