AWS SDK 2 代入角色

Question

@Bean
public DynamoDbClient amazonDynamoDB() {
    final AssumeRoleRequest assumeRoleRequest = AssumeRoleRequest.builder().roleSessionName(UUID.randomUUID().toString()).roleArn("roleArn").build();
    final StsAssumeRoleCredentialsProvider  stsAssumeRoleCredentialsProvider = StsAssumeRoleCredentialsProvider.builder().refreshRequest(assumeRoleRequest).build();
    return DynamoDbClient.builder().credentialsProvider(stsAssumeRoleCredentialsProvider).region(Region.EU_WEST_1)
            .build();
}

出錯

引起：org.springframework.beans.BeanInstantiationException：無法實例化[software.amazon.awssdk.services.dynamodb.DynamoDbClient]：工廠方法'amazonDynamoDB'拋出異常； 嵌套異常為 java.lang.NullPointerException：STS 客戶端不得為 null。 at spring.beans@5.2.7.RELEASE/org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) at spring.beans@5.2.7.RELEASE/org.springframework.beans.factory. support.ConstructorResolver.instantiate(ConstructorResolver.java:650)...省略了58個常見的幀原因：java.lang.NullPointerException：STS客戶端不能是19DFF7A625ECC29

Answer 1

在假設角色請求中需要設置 sts 客戶端並且它有效

@Bean
@Primary
public DynamoDbClient amazonDynamoDB() {
    final AssumeRoleRequest assumeRoleRequest = AssumeRoleRequest.builder().roleSessionName(UUID.randomUUID().toString()).roleArn("roleArn").build();
    final StsClient stsClient = StsClient.builder().region(Region.EU_WEST_1).build();
    final StsAssumeRoleCredentialsProvider  stsAssumeRoleCredentialsProvider = StsAssumeRoleCredentialsProvider.builder().stsClient(stsClient).refreshRequest(assumeRoleRequest).build();
    return DynamoDbClient.builder().credentialsProvider(stsAssumeRoleCredentialsProvider).region(Region.EU_WEST_1)
            .build();
}