# GetFileUploadURL
<a name="ApiReference_GetFileUploadURLOperation"></a>

## Description
<a name="ApiReference_GetFileUploadURLOperation-description"></a>

**Important**  
Beginning Tuesday, December 12th 2017 the Answer Specification structure will **no longer support the `FileUploadAnswer` element** to be used for the [QuestionForm](ApiReference_QuestionFormDataStructureArticle.md) data structure. Instead, we recommend that Requesters who want to create HITs asking Workers to upload files use [Amazon S3](http://aws.amazon.com/s3).

The `GetFileUploadURL` operation generates and returns a temporary URL. You use the temporary URL to retrieve a file uploaded by a Worker as an answer to a FileUploadAnswer question for a HIT. The temporary URL is generated the instant the GetFileUploadURL operation is called, and is valid for 60 seconds. You can get a temporary file upload URL any time until the HIT is disposed. After the HIT is disposed, any uploaded files are deleted, and cannot be retrieved.

## Request Syntax
<a name="ApiReference_GetFileUploadURLOperation-request-syntax"></a>

```
{ 
  "AssignmentId": String,

  "QuestionIdentifier": String
 }
```

## Request Parameters
<a name="ApiReference_GetFileUploadURLOperation-request-parameters"></a>

 The request accepts the following data in JSON format: 


| Name | Description | Required | 
| --- | --- | --- | 
|   ` AssignmentId `   |  The ID of the assignment that contains the question with a FileUploadAnswer. Type: String  |  Yes  | 
|   ` QuestionIdentifier `   |  The identifier of the question with a FileUploadAnswer, as specified in the QuestionForm of the HIT. Type: String  |  Yes  | 

## Response Elements
<a name="ApiReference_GetFileUploadURLOperation-response-elements"></a>

A successful request returns an FileUploadURL string containing the temporary URL.