Amazon Managed Blockchain
API Reference (API Version 2018-09-24)


Creates a member within a Managed Blockchain network.

Request Syntax

POST /networks/networkId/members HTTP/1.1 Content-type: application/json { "ClientRequestToken": "string", "InvitationId": "string", "MemberConfiguration": { "Description": "string", "FrameworkConfiguration": { "Fabric": { "AdminPassword": "string", "AdminUsername": "string" } }, "Name": "string" } }

URI Request Parameters

The request requires the following URI parameters.


The unique identifier of the network in which the member is created.

Length Constraints: Minimum length of 1. Maximum length of 32.

Request Body

The request accepts the following data in JSON format.


A unique, case-sensitive identifier that you provide to ensure the idempotency of the operation. An idempotent operation completes no more than one time. This identifier is required only if you make a service request directly using an HTTP client. It is generated automatically if you use an AWS SDK or the AWS CLI.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 64.

Required: Yes


The unique identifier of the invitation that is sent to the member to join the network.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 32.

Required: Yes


Member configuration parameters.

Type: MemberConfiguration object

Required: Yes

Response Syntax

HTTP/1.1 200 Content-type: application/json { "MemberId": "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.


The unique identifier of the member.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 32.


For information about the errors that are common to all actions, see Common Errors.


You do not have sufficient access to perform this action.

HTTP Status Code: 403


The request processing has failed because of an unknown error, exception or failure.

HTTP Status Code: 500


The action or operation requested is invalid. Verify that the action is typed correctly.

HTTP Status Code: 400


A resource request is issued for a resource that already exists.

HTTP Status Code: 409


The maximum number of resources of that type already exist. Ensure the resources requested are within the boundaries of the service edition and your account limits.

HTTP Status Code: 429


A requested resource does not exist on the network. It may have been deleted or referenced inaccurately.

HTTP Status Code: 404


The requested resource exists but is not in a status that can complete the operation.

HTTP Status Code: 409


The request or operation could not be performed because a service is throttling requests. The most common source of throttling errors is launching EC2 instances such that your service limit for EC2 instances is exceeded. Request a limit increase or delete unused resources if possible.

HTTP Status Code: 429

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: