https://johanneskonings.dev/ Notes and posts on AWS and TanStack. en Tue, 06 Oct 2026 14:45:51 GMT https://johanneskonings.dev/blog/2026-03-30-cdk-mixin-deletion-protection Apply one CDK mixin at app scope to enforce a consistent deletion-protection baseline in permanent environments: stack termination protection plus retain-aligned resource-level protection on supported services. Mon, 30 Mar 2026 00:00:00 GMT https://johanneskonings.dev/blog/2026-03-30-cdk-mixin-deletion-protection https://johanneskonings.dev/blog/2026-04-23-cdk-mixin-api-gw-tls-version Use a type-safe CDK mixin to enforce modern API Gateway TLS policy and endpoint access mode across REST APIs, instead of brittle one-off L1 overrides. Mon, 30 Mar 2026 00:00:00 GMT https://johanneskonings.dev/blog/2026-04-23-cdk-mixin-api-gw-tls-version https://johanneskonings.dev/blog/2026-03-28-aurora-express-drizzle Provision Aurora PostgreSQL serverless using express configuration from CDK with AWS SDK custom resources, then manage schema and seed data with Drizzle Kit and Drizzle Studio. Sat, 28 Mar 2026 00:00:00 GMT https://johanneskonings.dev/blog/2026-03-28-aurora-express-drizzle https://johanneskonings.dev/blog/2026-02-02-tanstack-ai-bedrock-simple Add TanStack AI with AWS Bedrock to your TanStack Start on AWS setup: Bedrock usage, IAM permissions, and a minimal chat example. Mon, 02 Feb 2026 00:00:00 GMT https://johanneskonings.dev/blog/2026-02-02-tanstack-ai-bedrock-simple https://johanneskonings.dev/blog/2026-01-11-aws-cdk-nag-log-bucket-tagger How to tag S3 log buckets created by the AWS CDK so third-party scanners can recognize them. Sun, 11 Jan 2026 00:00:00 GMT https://johanneskonings.dev/blog/2026-01-11-aws-cdk-nag-log-bucket-tagger https://johanneskonings.dev/blog/2026-01-08-tanstack-start-aws-db-multiple-entities-sse Build real-time data synchronization between AWS DynamoDB and TanStack DB using Server-Sent Events. Learn how to stream database changes via DynamoDB Streams, implement SSE endpoints with TanStack Start/Router. Thu, 08 Jan 2026 00:00:00 GMT https://johanneskonings.dev/blog/2026-01-08-tanstack-start-aws-db-multiple-entities-sse https://johanneskonings.dev/blog/2025-12-31-cdk-bootstrap-customized-template Learn how to customize the AWS CDK bootstrap template to add server access logging and KMS encryption to the staging bucket. Use the CDK Toolkit library to orchestrate multi-region deployments, extract environments from CDK apps, and validate CloudFormation templates with cdk-nag. Wed, 31 Dec 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-12-31-cdk-bootstrap-customized-template https://johanneskonings.dev/blog/2025-12-27-tanstack-start-aws-db-multiple-entities Implement a multi-entity data model with TanStack DB and DynamoDB using single table design. Learn how to manage Person, Address, BankAccount, ContactInfo, and Employment entities with ElectroDB and TanStack DB collections. Includes performance optimization with global collections for instant navigation. Sat, 27 Dec 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-12-27-tanstack-start-aws-db-multiple-entities https://johanneskonings.dev/blog/2025-12-20-tanstack-start-aws-db-simple Deploy a simple TanStack DB + DynamoDB setup on AWS using CDK, with a TanStack Start API route and a query collection powering a small todo UI. Sat, 20 Dec 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-12-20-tanstack-start-aws-db-simple https://johanneskonings.dev/blog/2025-12-13-cdk-monitor-multiple-resources-using-single-alarm Use CloudWatch Metrics Insights query alarms (with tags) to monitor many resources with one alarm in AWS CDK. Sat, 13 Dec 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-12-13-cdk-monitor-multiple-resources-using-single-alarm https://johanneskonings.dev/blog/2025-12-06-cdk-notifier-feature-stacks-change-set Extend cdk-notifier with CloudFormation change sets to validate changes before merging pull requests Sat, 06 Dec 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-12-06-cdk-notifier-feature-stacks-change-set https://johanneskonings.dev/blog/2025-11-30-tanstack-start-aws-serverless Deploy TanStack Start on AWS with streaming API Gateway using AWS CDK Sun, 30 Nov 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-11-30-tanstack-start-aws-serverless https://johanneskonings.dev/blog/2025-11-28-aws-cdk-encrypt-all-lambda-envs A guide on how to encrypt all AWS Lambda environment variables using AWS CDK aspects/mixins. Also from third party libraries. Fri, 28 Nov 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-11-28-aws-cdk-encrypt-all-lambda-envs https://johanneskonings.dev/blog/2025-11-27-aws-cdk-nag-iam5-granular-statement-suppresions How to document and suppress only the wildcard permissions that are required by AWS services, while keeping the rest of AwsSolutions-IAM5 findings active. Thu, 27 Nov 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-11-27-aws-cdk-nag-iam5-granular-statement-suppresions https://johanneskonings.dev/blog/2025-06-14-aws-cdk-ephemeral-stacks-cleanup When developing features with ephemeral CDK stacks, the resource retention configuration needs to differ from test and production stacks. This article explains how to use CDK Aspects and Property Injectors to automatically clean up resources from ephemeral stacks. Sat, 14 Jun 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-06-14-aws-cdk-ephemeral-stacks-cleanup https://johanneskonings.dev/blog/2025-01-12-aws-cdk-nag-custom-resource-singleton-suppression This post describes how to suppress cdk-nag findings that are caused by the custom resource singleton Lambda function globally, so that findings which are out of your own control are not reported. Sun, 12 Jan 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-01-12-aws-cdk-nag-custom-resource-singleton-suppression https://johanneskonings.dev/blog/2025-01-02-aws-application-signals-config-transaction-search-cdk Learn how to enable and configure AWS CloudWatch Application Signals Transaction Search using the AWS CDK, including setting up the required IAM policies and X-Ray configurations. Tue, 07 Jan 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-01-02-aws-application-signals-config-transaction-search-cdk https://johanneskonings.dev/blog/2025-01-02-aws-application-signals-config-lambda-cdk How to configure AWS CloudWatch Application Signals centrally for an AWS account and for individual Node.js Lambdas using the AWS CDK. Thu, 02 Jan 2025 00:00:00 GMT https://johanneskonings.dev/blog/2025-01-02-aws-application-signals-config-lambda-cdk https://johanneskonings.dev/blog/2024-12-28-api-gw-sigv4-different-api-clients This post describes how to call an IAM authenticated API Gateway with different HTTP clients like ky, fetch, and axios via signature v4 requests. Sat, 28 Dec 2024 00:00:00 GMT https://johanneskonings.dev/blog/2024-12-28-api-gw-sigv4-different-api-clients https://johanneskonings.dev/blog/2024-12-07-aws-vscode-private-ec2-instance Use the browser based vs code for file handling on a private ec2 instance without ssh Sat, 07 Dec 2024 00:00:00 GMT https://johanneskonings.dev/blog/2024-12-07-aws-vscode-private-ec2-instance https://johanneskonings.dev/blog/2024-11-30-aws-sso-prowler See how this setup can help to scan all AWS SSO accounts with a mix of Prowler, docker, and aws-sso-util. Sat, 30 Nov 2024 00:00:00 GMT https://johanneskonings.dev/blog/2024-11-30-aws-sso-prowler https://johanneskonings.dev/blog/2024-04-20-cdk-notifier-and-tags Description of the diff consequence of two ways of tagging in CDK Sat, 20 Apr 2024 00:00:00 GMT https://johanneskonings.dev/blog/2024-04-20-cdk-notifier-and-tags https://johanneskonings.dev/blog/2023-12-16-cdk-notifier-feature-stacks See how cdk-notifier can help to compare which cdk changes will be applied after merging a pull request Sat, 16 Dec 2023 00:00:00 GMT https://johanneskonings.dev/blog/2023-12-16-cdk-notifier-feature-stacks https://johanneskonings.dev/blog/2023-09-08-aws-sso-steampipe See how this setup can help to discover your AWS resources across all SSO accounts with a mix of Steampipe, docker, bash scripts, and AWS CLI Fri, 08 Sep 2023 00:00:00 GMT https://johanneskonings.dev/blog/2023-09-08-aws-sso-steampipe https://johanneskonings.dev/blog/2023-08-19-cdk-serverless-v2-demo-with-zod CDK serverless v2 is for using type saftey develepmonet base on schemas like openAPI. This post is a example how to use zod with CDK serverless v2 Sat, 19 Aug 2023 00:00:00 GMT https://johanneskonings.dev/blog/2023-08-19-cdk-serverless-v2-demo-with-zod https://johanneskonings.dev/blog/2022-10-03-aws-example-ddb-export-athena-query This post is how to trigger a Dynamodb export and create saved query to create a Athena table from the exported data Mon, 03 Oct 2022 00:00:00 GMT https://johanneskonings.dev/blog/2022-10-03-aws-example-ddb-export-athena-query https://johanneskonings.dev/blog/2022-09-17-aws_example_ddb_analytics_quicksight_cdk This post is how to visualize the streamed data changes of a DynamoDb table via Kinesis Data Stream and Kinesis Firehose to S3. Build with CDK. Sat, 17 Sep 2022 00:00:00 GMT https://johanneskonings.dev/blog/2022-09-17-aws_example_ddb_analytics_quicksight_cdk https://johanneskonings.dev/blog/2022-08-22-aws_example_ddb_analytics_athena_saved_queries_cdk This post is about how saved queries are created with CDK. This is useful to have important queries prepared for any users. Mon, 22 Aug 2022 00:00:00 GMT https://johanneskonings.dev/blog/2022-08-22-aws_example_ddb_analytics_athena_saved_queries_cdk https://johanneskonings.dev/blog/2021-10-26-aws_example_ddb_analytics_cdk This post is how stream data changes of a DynamoDb table via Kinesis Data Stream and Kinesis Firehose to S3, and analyze the data with Athena. Build with CDK. Tue, 26 Oct 2021 00:00:00 GMT https://johanneskonings.dev/blog/2021-10-26-aws_example_ddb_analytics_cdk https://johanneskonings.dev/blog/2021-08-27-aws_example_ddb_analytics This post is how stream data changes of a DynamoDb table via Kinesis Data Stream and Kinesis Firehose to S3, and analyze the data with Athena Fri, 27 Aug 2021 00:00:00 GMT https://johanneskonings.dev/blog/2021-08-27-aws_example_ddb_analytics https://johanneskonings.dev/blog/2021-02-28-github-automatic-releases-and-changelog This post is how to define your release draft via labels in pull requests and the update of the changelog.md after publishing a release Sun, 28 Feb 2021 00:00:00 GMT https://johanneskonings.dev/blog/2021-02-28-github-automatic-releases-and-changelog https://johanneskonings.dev/blog/2020-12-19-aws-billing-metrics-grafana-cloud-and-terraform Terraform setup to display AWS billing metrics in Grafana Cloud with S3 Backend and CI/CD pipeline Sat, 19 Dec 2020 00:00:00 GMT https://johanneskonings.dev/blog/2020-12-19-aws-billing-metrics-grafana-cloud-and-terraform https://johanneskonings.dev/blog/2020-12-06-amplify_admin_ui_user_management Description of the change from a self sign up to user management from an admin Sun, 06 Dec 2020 00:00:00 GMT https://johanneskonings.dev/blog/2020-12-06-amplify_admin_ui_user_management https://johanneskonings.dev/blog/2020-11-27-aws_billing_metrics_and_grafana_cloud Configuration of Grafana Cloud to display AWS billing metrics Fri, 27 Nov 2020 00:00:00 GMT https://johanneskonings.dev/blog/2020-11-27-aws_billing_metrics_and_grafana_cloud https://johanneskonings.dev/blog/2020-10-19-example_react_average_of_items_in_different_arrays Example how to calculate the average of different arrays Javascript (map, reduce, concat, ...) Mon, 19 Oct 2020 00:00:00 GMT https://johanneskonings.dev/blog/2020-10-19-example_react_average_of_items_in_different_arrays https://johanneskonings.dev/blog/2020-08-31-example_react_component_props_events An quick example how to pass data to componenents and get data from components Mon, 31 Aug 2020 00:00:00 GMT https://johanneskonings.dev/blog/2020-08-31-example_react_component_props_events https://johanneskonings.dev/blog/2020-08-18-amplify-env-master-to-main Change of the master branch end amplfiy env to main and migration of the env data Tue, 18 Aug 2020 00:00:00 GMT https://johanneskonings.dev/blog/2020-08-18-amplify-env-master-to-main