public CredentialModel GetSTSAssumeRoleSessionCredentials()

in aliyun-net-credentials/Provider/ProfileCredentialsProvider.cs [154:192]
36 lines of code
8 McCabe index (conditional complexity)

        public CredentialModel GetSTSAssumeRoleSessionCredentials(Dictionary<string, string> clientConfig)
        {
            string accessKeyId = DictionaryUtil.Get(clientConfig, AuthConstant.IniAccessKeyId);
            string accessKeySecret = DictionaryUtil.Get(clientConfig, AuthConstant.IniAccessKeyIdsecret);
            string roleSessionName = DictionaryUtil.Get(clientConfig, AuthConstant.IniRoleSessionName);
            string roleArn = DictionaryUtil.Get(clientConfig, AuthConstant.IniRoleArn);
            string regionId = DictionaryUtil.Get(clientConfig, AuthConstant.DefaultRegion);
            string policy = DictionaryUtil.Get(clientConfig, AuthConstant.IniPolicy);
            string stsRegionId = DictionaryUtil.Get(clientConfig, AuthConstant.iniStsRegionId);
            string externalId = DictionaryUtil.Get(clientConfig, AuthConstant.iniExternalId);
            string enable = DictionaryUtil.Get(clientConfig, AuthConstant.IniEnable);
            bool? enableVpc = enable == null ? (bool?)null
                : enable.ToLower() == "true" ? true
                : enable.ToLower() == "false" ? false
                : (bool?)null;

            if (string.IsNullOrWhiteSpace(accessKeyId) || string.IsNullOrWhiteSpace(accessKeySecret))
            {
                throw new CredentialException("The configured access_key_id or access_key_secret is empty");
            }

            if (string.IsNullOrWhiteSpace(roleSessionName) || string.IsNullOrWhiteSpace(roleArn))
            {
                throw new CredentialException("The configured role_session_name or role_arn is empty");
            }

            RamRoleArnCredentialProvider provider = new RamRoleArnCredentialProvider.Builder()
                .AccessKeyId(accessKeyId)
                .AccessKeySecret(accessKeySecret)
                .RoleSessionName(roleSessionName)
                .RoleArn(roleArn)
                .RegionId(regionId)
                .Policy(policy)
                .StsRegionId(stsRegionId)
                .EnableVpc(enableVpc)
                .ExternalId(externalId)
                .Build();
            return provider.GetCredentials();
        }