Undeletes a custom  Role 
 
.
HTTP request
 POST https://iam.googleapis.com/v1/{name=projects/*/roles/*}:undelete 
The URL uses gRPC Transcoding syntax.
Path parameters
name 
 string 
The name 
parameter's value depends on the target resource for the request, namely projects 
or organizations 
. Each resource type's name 
value format is described below:
-  projects.roles.undelete : projects/{PROJECT_ID}/roles/{CUSTOM_ROLE_ID}. This method undeletes only custom roles that have been created at the project level. Example request URL:https://iam.googleapis.com/v1/projects/{PROJECT_ID}/roles/{CUSTOM_ROLE_ID}
-  organizations.roles.undelete : organizations/{ORGANIZATION_ID}/roles/{CUSTOM_ROLE_ID}. This method undeletes only custom roles that have been created at the organization level. Example request URL:https://iam.googleapis.com/v1/organizations/{ORGANIZATION_ID}/roles/{CUSTOM_ROLE_ID}
Note: Wildcard (*) values are invalid; you must specify a complete project ID or organization ID.
Authorization requires the following IAM 
permission on the specified resource name 
:
-  iam.roles.undelete
Request body
The request body contains data with the following structure:
| JSON representation | 
|---|
| { "etag" : string } | 
| Fields | |
|---|---|
| etag |   Used to perform a consistent read-modify-write. A base64-encoded string. | 
Response body
If successful, the response body contains an instance of  Role 
 
.
Authorization scopes
Requires one of the following OAuth scopes:
-  https://www.googleapis.com/auth/iam
-  https://www.googleapis.com/auth/cloud-platform
For more information, see the Authentication Overview .

