# Updating connections in EventBridge
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You can update existing connections.

## Updating authentication of connections
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When you update certain authentication parameters, EventBridge re-authorizes and verifies network connectivity of the connection accordingly.

Updating the connection with authorization parameters of a different authorization type, without updating the authorization type itself, has no effect.

**When EventBridge re-authenticates connections to public APIs**

For connections to public APIs, EventBridge re-authorizes the connection if you:
+ Update the connection to invoke a private API instead.
+ Update the connection authorization method *and* authorization parameters.

**When EventBridge re-authenticates connections to private APIs**

For connections to private APIs, if you do any of the following:
+ Update the connection to invoke a different private API, or a public API.
+ Update the connection authorization method.
+ Update the connection authorization parameters for the specified authorization method.

EventBridge does the following:
+ Re-authorizes the connection.
+ Verifies the network connectivity of the connection.

  If you have updated the connection to use a different private API, or a public API, EventBridge also removes or updates existing network connectivity artifacts as appropriate.

**To update a connection using the EventBridge console**

1. Log in to AWS using an account that has permissions to manage EventBridge and open the [EventBridge console](https://console.aws.amazon.com/events).

1. In the left navigation pane, under **Integration**, choose **Connections**.

1. In the **Connections** table, choose the connection to edit.

1. On the **Connection details** page, choose **Edit**.

1. Update the values for the connection, and then choose **Update**.

   For information on updating the KMS key for EventBridge to use when encrypting a connection, see [Updating AWS KMS keys](encryption-connections-configure.md#encryption-connections-update).

**To update a connection using the AWS CLI**
+ Use the `[update-connection](https://docs.aws.amazon.com/cli/latest/reference/events/update-connection.html)` command. 

  To update a connection's invocation or authorization endpoint from a private API to a public API, you must specify an empty string (`""`) for the `ResourceConfigurationArn` parameter. Specifying `null` for this parameter has no effect.

  The following example updates the connection to use a public API, by setting the `ResourceConfigurationArn` that represents a private API resource configuration to an empty string.

  ```
  aws events update-connection \                              
  --name myConnection \
  --authorization-type BASIC \
  --auth-parameters '{"BasicAuthParameters": {"Username": "username", "Password": "***"}}' \
  --region us-east-1 \
  --invocation-connectivity-parameters ResourceParameters={ResourceConfigurationArn=\"\"}
  ```