# 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)

## Request examples:

  - `Example of uploading a new version of an existing file` (unknown)
    **Request header**

`Content-Type: multipart/form-data; boundary=----Boundary7MA4YWxkTrZu0gW`

## Response 201:

  - `201` (unknown)
    Created

## Response 201 fields (application/json):

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

## Response 201 headers (application/json):

  - `Location` (string)
    Relative location to retrieve the new version of the file

## Response 400:

  - `400` (unknown)
    Bad Request

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

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

  - `errors` (object)
    A dictionary of validation errors, where each key is a field api name and the value is a list of error messages.

  - `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:

  - `404` (unknown)
    Not Found

## 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:

  - `409` (unknown)
    Conflict

## 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.