本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# Amazon Chime SDK 訊息的範例 IAM 角色
<a name="iam-roles"></a>

若要讓使用者存取 Amazon Chime SDK 訊息功能，您必須定義 IAM 角色和政策，以便在使用者登入時提供登入資料。IAM 政策定義使用者可以存取的資源。

本節中的範例提供基本政策，您可以根據需求進行調整。如需政策運作方式的詳細資訊，請參閱 [從 Amazon Chime SDK 訊息的後端服務進行 SDK 呼叫](call-from-backend.md)。

此範例顯示開發人員使用 Amazon Chime SDK 訊息建置應用程式的政策。

------
#### [ JSON ]

****  

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Action": [
                "chime:CreateAppInstance",
                "chime:DescribeAppInstance",
                "chime:ListAppInstances",
                "chime:UpdateAppInstance",
                "chime:DeleteAppInstance",
                "chime:CreateAppInstanceUser",
                "chime:DeleteAppInstanceUser",
                "chime:ListAppInstanceUsers",
                "chime:UpdateAppInstanceUser",
                "chime:DescribeAppInstanceUser",
                "chime:CreateAppInstanceAdmin",
                "chime:DescribeAppInstanceAdmin",
                "chime:ListAppInstanceAdmins",
                "chime:DeleteAppInstanceAdmin",
                "chime:PutAppInstanceRetentionSettings",
                "chime:GetAppInstanceRetentionSettings",
                "chime:PutAppInstanceStreamingConfigurations",
                "chime:GetAppInstanceStreamingConfigurations",
                "chime:DeleteAppInstanceStreamingConfigurations",
                "chime:TagResource",
                "chime:UntagResource",
                "chime:ListTagsForResource",
                "chime:CreateChannelFlow",
                "chime:UpdateChannelFlow",
                "chime:DescribeChannelFlow",
                "chime:DeleteChannelFlow",
                "chime:ListChannelFlows",
                "chime:ListChannelsAssociatedWithChannelFlow",
                "chime:ChannelFlowCallback"
            ],
            "Effect": "Allow",
            "Resource": "*"
        }
    ]
}
```

------

此範例顯示允許使用者存取 Amazon Chime SDK 使用者動作的政策。

------
#### [ JSON ]

****  

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Action": "chime:GetMessagingSessionEndpoint",
            "Effect": "Allow",
            "Resource": "*"
        },
        {
            "Action": [
                "chime:CreateChannel",
                "chime:DescribeChannel",
                "chime:DeleteChannel",
                "chime:UpdateChannel",
                "chime:ListChannels",
                "chime:Listsubchannels",
                "chime:ListChannelMembershipsForAppInstanceUser",
                "chime:DescribeChannelMembershipForAppInstanceUser",
                "chime:ListChannelsModeratedByAppInstanceUser",
                "chime:DescribeChannelModeratedByAppInstanceUser",
                "chime:UpdateChannelReadMarker",
                "chime:CreateChannelModerator",
                "chime:DescribeChannelModerator",
                "chime:ListChannelModerators",
                "chime:DeleteChannelModerator",
                "chime:SendChannelMessage",
                "chime:GetChannelMessage",
                "chime:DeleteChannelMessage",
                "chime:UpdateChannelMessage",
                "chime:RedactChannelMessage",
                "chime:ListChannelMessages",
                "chime:CreateChannelMembership",
                "chime:DescribeChannelMembership",
                "chime:DeleteChannelMembership",
                "chime:ListChannelMemberships",
                "chime:CreateChannelBan",
                "chime:DeleteChannelBan",
                "chime:ListChannelBans",
                "chime:DescribeChannelBan",
                "chime:Connect",
                "chime:AssociateChannelFlow",
                "chime:DisassociateChannelFlow",
                "chime:GetChannelMessageStatus"
            ],
            "Effect": "Allow",
            "Resource": [
                "arn:aws:chime:{{us-east-1}}:{{123456789012}}:app-instance/{{app_instance_id}}/user/{{app_instance_user_id}}",
                "arn:aws:chime:{{us-east-1}}:{{123456789012}}:app-instance/{{app_instance_id}}/channel/*"
            ]
        }
    ]
}
```

------

此範例顯示的政策可讓使用者對 Amazon Chime SDK 使用者動作的存取權降到最低。

------
#### [ JSON ]

****  

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Action": "chime:GetMessagingSessionEndpoint",
            "Effect": "Allow",
            "Resource": "*"
        },
        {
            "Action": [
                "chime:ListChannels",
                "chime:DescribeChannel",
                "chime:ListChannelMembershipsForAppInstanceUser",
                "chime:DescribeChannelMembershipForAppInstanceUser",
                "chime:ListChannelsModeratedByAppInstanceUser",
                "chime:DescribeChannelModeratedByAppInstanceUser",
                "chime:SendChannelMessage",
                "chime:GetChannelMessage",
                "chime:ListChannelMessages",
                "chime:Connect"
            ],
            "Effect": "Allow",
            "Resource": [
                "arn:aws:chime:{{us-east-1}}:{{123456789012}}:app-instance/{{app_instance_id}}/user/{{app_instance_user_id}}",
                "arn:aws:chime:{{us-east-1}}:{{123456789012}}:app-instance/{{app_instance_id}}/channel/*"
            ]
        }
    ]
}
```

------

此範例顯示為 建立 WebSocket 連線的政策`AppInstanceUser`。如需 WebSocket 連線的詳細資訊，請參閱 [使用 WebSockets Amazon Chime SDK 訊息中接收訊息](websockets.md)。

------
#### [ JSON ]

****  

```
{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
   {
     "Effect": "Allow",
     "Action": [
             "chime:Connect"
            ],
     "Resource": [
             "arn:aws:chime:{{us-east-1}}:{{123456789012}}:app-instance/{{app_instance_id}}/user/{{app_instance_user_id}}"
         ]
      }
   ]
}
```

------