# Add Cross-Domain Rules - AddCORSRule

## Overview

Add Cross-Domain Rule






## Definition

### Public Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **Action**     | string  | Corresponding API command name, the current API is `AddCORSRule`.                      | **Yes** |
| **PublicKey**  | string  | The user's public key can be obtained from [Console](https://console.genesissai.com/uaccount/api_manage)                                             | **Yes** |
| **Signature**  | string  | User signature generated based on public key and API command, see [Signature Algorithm](/docs/api/summary/signature.md)  | **Yes** |

### Request Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **ProjectId** | string | Project ID. If not filled in, the default project is used. Sub-accounts must fill in. Please refer to the [GetProjectList interface](/docs/api/summary/get_project_list) |No|
| **BucketName** | string | Bucket Name |**Yes**|
| **AllowedOrigin** | string | Specify the allowed origins for cross-domain requests, use the wildcard (*) to allow cross-domain requests from all sources (multiple Origins are separated by ',') |**Yes**|
| **AllowedMethod** | string | Specify the allowed cross-domain request methods. Supported method names are: GET, PUT, POST, DELETE, HEAD, OPTIONS (multiple Methods are separated by ','). |**Yes**|
| **AllowedHeader** | string | Specify allowed cross-domain request headers (multiple Headers separated by ',') |No|
| **ExposeHeader** | string | Specify the response headers that users are allowed to access from the application (multiple ExposeHeaders are separated by ',') |No|

### Response Field

| Field Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **RetCode** | int | Return status code. If it is 0, it means successful return. If it is not 0, it means failure. |**Yes**|
| **Action** | string | Operation command name. |**Yes**|
| **Message** | string | Returns an error message, providing detailed description when `RetCode` is non-zero. |No|
| **CORSId** | string | Add a cors_id for a cross-domain rule |**Yes**|




## Example

### Request Example
    
```
https://api.genesissai.com/?Action=AddCORSRule
&BucketName=zovBREtA
&Origin=JHadvfLW
&Method=dtinCAUg
&MaxAge=2
&Header=WGZPTauj
&ExposeHeader=gOGmfrie
&ProjectId=ZdxNuOEg
```

### Response Example
    
```json
{
  "Action": "AddCORSRuleResponse",
  "CORSId": "gdoTXICF",
  "RetCode": 0
}
```