# Upload file version

Upload a new version of a file resource (File, ContractDocument)

Endpoint: POST /v2/files/{fileId}

## Path parameters:

  - `fileId` (integer, required)
    The system identifier for the file

## Request fields (multipart/form-data):

  - `file` (string, required)

## Response 201 fields (application/json):

  - `id` (integer)
    The system identifier for the file
    Example: 9456

## Response 400 fields (application/problem+json):

  - `detail` (string)
    More information about the problem.

  - `instance` (string)
    The URI of the resource which the error relates to.

  - `operationId` (string)
    A unique trace identifier for the request. This should be provided when requesting support.

  - `status` (integer)
    The HTTP status code for the problem.

  - `title` (string)
    A short description of the error.

  - `type` (string)
    A URI which can be followed to find out more about the problem.

## Response 404 fields (application/problem+json):

  - `detail` (string)
    More information about the problem.

  - `instance` (string)
    The URI of the resource which the error relates to.

  - `operationId` (string)
    A unique trace identifier for the request. This should be provided when requesting support.

  - `status` (integer)
    The HTTP status code for the problem.

  - `title` (string)
    A short description of the error.

  - `type` (string)
    A URI which can be followed to find out more about the problem.

## Response 409 fields (application/problem+json):

  - `detail` (string)
    More information about the problem.

  - `instance` (string)
    The URI of the resource which the error relates to.

  - `operationId` (string)
    A unique trace identifier for the request. This should be provided when requesting support.

  - `status` (integer)
    The HTTP status code for the problem.

  - `title` (string)
    A short description of the error.

  - `type` (string)
    A URI which can be followed to find out more about the problem.