# Upload avatar during register interaction

**POST /api/experience/user-assets/avatar**

Upload an image (e.g. avatar) during the `Register` experience interaction and return the public URL of the uploaded asset. The user account may not have been created yet at this point; the upload is scoped to the current interaction session. The returned URL can then be submitted as a profile field value via `POST /api/experience/profile`.


## Servers
- Logto endpoint address.: https://[tenant_id].logto.app (Logto endpoint address.)



## Parameters



### Body: multipart/form-data (object)

- **file** ()
  The avatar image file to upload. Must be an allowed image type and not exceed the maximum upload file size.


## Responses
### 200
The asset was uploaded successfully.

#### Body: application/json (object)
- **url** (string)


### 400
Invalid request. <br/>- The current interaction event is not `Register`. <br/>- The file is invalid, exceeds the maximum size, has a disallowed image type, or storage is not configured.

### 403
Permission denied for the current interaction state.

### 404
Entity not found related to the current interaction.

### 500
Failed to upload the file to the storage provider.


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