/// <summary>
        /// Add custom attributes if not yet setup
        /// </summary>
        private async Task InitializeCustomAttributes()
        {
            var userPoolRequest = new DescribeUserPoolRequest
            {
                UserPoolId = CognitoUserPoolId
            };

            DescribeUserPoolResponse userPoolInfo = await Cognito.DescribeUserPoolAsync(userPoolRequest);

            var
                customAttributes = new List <SchemaAttributeType>();

            var companyAttr = new SchemaAttributeType
            {
                AttributeDataType = AttributeDataType.String,
                Name = CompanyNameAttribute
            };

            List <SchemaAttributeType> userPoolSchemaAttributes = userPoolInfo.UserPool.SchemaAttributes;

            if (userPoolSchemaAttributes.All(a => a.Name != companyAttr.Name))
            {
                customAttributes.Add(companyAttr);
            }
            if (customAttributes.Count > 0)
            {
                _logger.LogInformation($"Adding custom Cognito Attributes {CompanyNameAttribute}");
                await Cognito.AddCustomAttributesAsync(
                    new AddCustomAttributesRequest
                {
                    CustomAttributes = customAttributes,
                    UserPoolId       = CognitoUserPoolId
                });
            }
        }
        /// <summary>
        /// Add custom attributes if not yet setup
        /// </summary>
        private async Task InitializeCustomAttributes()
        {
            var userPoolRequest = new DescribeUserPoolRequest()
            {
                UserPoolId = CognitoUserPoolId
            };

            var userPoolInfo = await Cognito.DescribeUserPoolAsync(userPoolRequest);

            List <SchemaAttributeType>
            customAttributes = new List <SchemaAttributeType>();

            var companyAttr = new SchemaAttributeType()
            {
                AttributeDataType = AttributeDataType.String,
                Name = CompanyNameAttribute
            };

            List <SchemaAttributeType> userPoolSchemaAttributes = userPoolInfo.UserPool.SchemaAttributes;

            if (userPoolSchemaAttributes.All(a => a.Name != companyAttr.Name))
            {
                customAttributes.Add(companyAttr);
            }
            if (customAttributes.Count > 0)
            {
                await Cognito.AddCustomAttributesAsync(
                    new AddCustomAttributesRequest()
                {
                    CustomAttributes = customAttributes,
                    UserPoolId       = CognitoUserPoolId
                });
            }
        }