# PutPolicy


Updates the resource-based policy.

## Request Syntax


```
PUT /policies/arn HTTP/1.1
Content-type: application/json

{
   "policy": "string",
   "token": "string"
}
```

## URI Request Parameters


The request uses the following URI parameters.

 ** [arn](#API_PutPolicy_RequestSyntax) **   <a name="API-PutPolicy-request-uri-arn"></a>
The Amazon Resource Name (ARN) of the resource for which the policy needs to be updated.  
Pattern: `arn:(aws|aws-us-gov|aws-cn):entityresolution:[a-z]{2}-[a-z]{1,10}-[0-9]:[0-9]{12}:((schemamapping|matchingworkflow|idmappingworkflow|idnamespace)/[a-zA-Z_0-9-]{1,255})`   
Required: Yes

## Request Body


The request accepts the following data in JSON format.

 ** [policy](#API_PutPolicy_RequestSyntax) **   <a name="API-PutPolicy-request-policy"></a>
The resource-based policy.  
If you set the value of the `effect` parameter in the `policy` to `Deny` for the `PutPolicy` operation, you must also set the value of the `effect` parameter to `Deny` for the `AddPolicyStatement` operation.
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 40960.  
Required: Yes

 ** [token](#API_PutPolicy_RequestSyntax) **   <a name="API-PutPolicy-request-token"></a>
A unique identifier for the current revision of the policy.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}`   
Required: No

## Response Syntax


```
HTTP/1.1 200
Content-type: application/json

{
   "arn": "string",
   "policy": "string",
   "token": "string"
}
```

## Response Elements


If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [arn](#API_PutPolicy_ResponseSyntax) **   <a name="API-PutPolicy-response-arn"></a>
The AWS Entity Resolution resource ARN.  
Type: String  
Pattern: `arn:(aws|aws-us-gov|aws-cn):entityresolution:[a-z]{2}-[a-z]{1,10}-[0-9]:[0-9]{12}:((schemamapping|matchingworkflow|idmappingworkflow|idnamespace)/[a-zA-Z_0-9-]{1,255})` 

 ** [policy](#API_PutPolicy_ResponseSyntax) **   <a name="API-PutPolicy-response-policy"></a>
The resource-based policy.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 40960.

 ** [token](#API_PutPolicy_ResponseSyntax) **   <a name="API-PutPolicy-response-token"></a>
A unique identifier for the current revision of the policy.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}` 

## Errors


For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
You do not have sufficient access to perform this action.   
HTTP Status Code: 403

 ** ConflictException **   
The request couldn't be processed because of conflict in the current state of the resource. Example: Workflow already exists, Schema already exists, Workflow is currently running, etc.   
HTTP Status Code: 400

 ** InternalServerException **   
This exception occurs when there is an internal failure in the AWS Entity Resolution service.   
HTTP Status Code: 500

 ** ResourceNotFoundException **   
The resource couldn't be found.   
HTTP Status Code: 404

 ** ThrottlingException **   
The request was denied due to request throttling.   
HTTP Status Code: 429

 ** ValidationException **   
The input fails to satisfy the constraints specified by AWS Entity Resolution.   
HTTP Status Code: 400

## See Also


For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/entityresolution-2018-05-10/PutPolicy) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/entityresolution-2018-05-10/PutPolicy)