2026: My All-In Year on Convex
After years of searching for the perfect database solution, I finally found Convex - the database I always wanted. Here's why I'm going all-in.
Writing
Longer-form notes on building AI-first experiences, developer tooling, and product strategy.
Introducing Sessions
A custom video player for time-traveling through coding sessions with activity tracking.
Site Updates
Site should look good on mobile devices now.
Launching Personal Space: A New Chapter in My Journey
Excited to start sharing my thoughts, ideas, and experiences with the world again.
Add types to your AWS lambda handler
Lambdas handlers can be invoked with many different, but always complex, event arguments.
How to expose a local service to the internet
From time to time you might need to expose your locally running service to the external world
For loops in JavaScript (vs _.times)
From time to time I still see a for loop in JavaScript codebases. Linters are frequently angry about them.
Sharing scalars between modules with Chimp
Now, starting with version chimp@4.1.2 if you just want to use a scalar in a given module, but do not want to redefine it, use @predefined directive.
Adding TypeScript to the official Apollo Platform Tutorial app
I go through the preparation of the official Apollo Platform Tutorial App for adding Chimp to it.
AWS CDK Lambda and DynamoDB dependency management
Managing dependencies between Lambdas and DynamoDB tables can get ugly.
cypress-cucumber-preprocessor 4.1.0 - TSX and Multiline Step Arguments support
We've just released a new version of the cypress-cucumber-preprocessor package.
Chimp 4.0 - resolvers for extended federated types
We've noticed that resolver was frequently unused and left a significant amount of unnecessary code in projects
Better way to use useReducer with TypeScript
Introducing useComplexState hook, a small wrapper combining Redux Toolkit, useReducer with some extra syntax sugar to make things even simpler and more to the point.
Dealing with randomness in tests
How to work with dates and other non-deterministic variables.
How to deal with the yarn link "There''s already a package called x registered" error
If you work on independent packages (or maybe even open-source npm modules - in which case I salute you!), you probably use the link functionality.
Choosing between useState and useReducer
Watch me go through the advantages and disadvantages of different ways of using hooks for dealing with state in React.
GraphQL Federation example updated to Chimp 3.0
We are happy to announce that the example showing many advanced patterns related to GraphQL usage is updated to Chimp 3.0
Rapid Prototyping with JavaScript
A video about rapid prototyping with JavaScript
Adding chimp 3 to an existing Application
This article is based on my notes from adding chimp to an existing app
How to fix the annoying "Ensure there is only one instance of graphql" error
If you have been doing serious work with GraphQL over the last few years, you surely saw this error at one time or another
Updating from Chimp 2 to 3
We've rewritten Chimp to use TypeScript and the fantastic CLI Framework called Oclif.
How to deal with inferred TypeScript types and stop using any
What do you do when you are in need to figure out a complex type?
How to never add WebStorm .idea folder to git ever again
Frequently when you work with an open-source repository you might accidentally commit your .idea folder to it.
How to pass a class to a function in TypeScript
An example of passing a class to a function in TypeScript
Testing with DynamoDB Toolbox
To do integration tests with your DynamoDB Toolbox setup, it's important to be able to run tests in isolations.
Creating Tables with DynamoDB Toolbox
I'm playing around with DynamoDB Toolbox, and one thing that wasn't clear in my mind was how do I actually create a table using the definitions I made using Toolbox.
Instantly update your Lambda functions (development)
Deploying the whole stack whenever you want to check your changes is tiresome and boring.
Centralize your AWS Lambda Errors
Having multiple independent lambda functions is great, but it comes with a price of difficult monitoring.
Make Oh My Zsh history play nicely with WebStorm / IntelliJ
Disappearing history entries were bugging me for a long time. I would try to look for a command that I KNEW I recently typed, but it was gone.
How to easily develop and deploy TypeScript Lambda functions
We wanted the TypeScript Lambda experience to be seamless - if a developer wants to create a new function, he should create a typescript file, add it to CDK and that's it.
DynamoDB nodejs Testing Tool
DynamoDB is a fantastic database, but so far it misses a nice abstraction that would make you more confident that the code you write is correct.
Chimp v2.3.0 released. Custom Prefixes for Monorepos
With the new version chimp allows you to set up custom prefixes for your chimp apps.
How to mock files with TestDouble, TypeScript and Jest
Let's assume a structure of two files, first a file with a function that calls a separate function and performs some logic based on the information received
Why so loud, jest?
With this tiny plugin, you will be able to see ONLY RELEVANT console messages.
Generate your Apollo DataSources
Using GraphQL as your aggregation layer for your microservices is great, but writing all the code for connecting to them is not.
Comparison of the GraphQL Workflow with/without Chimp
Let's take a look at how using chimp can benefit your workflow when working on GraphQL Apollo Server.
Apollo Composable with Vue Storybook Stories
One day you might decide your app became so large that it would be great to develop smaller chunks of it in isolation
![Adding Semantic Release to an old Babel Plugin [Live] (2/2)](/_next/image?url=https%3A%2F%2Fcdn.prod.website-files.com%2F66d9c8ce74a4739309e271dd%2F66fffc28a512e58d01b45c0b_%2520.webp&w=3840&q=75)
Adding Semantic Release to an old Babel Plugin [Live] (2/2)
In the second part of the live coding with babel-plugin-ignore-html-and-css-imports package, I'm adding the Semantic Release through Github Actions to it.
![Working with Legacy code. Feature for IBM in an old Babel Plugin [Live] (1/2)](/_next/image?url=https%3A%2F%2Fcdn.prod.website-files.com%2F66d9c8ce74a4739309e271dd%2F66ff8867c2140e7fdeeaca9f_jeshoots-com-VdOO4_HFTWM-unsplash.webp&w=3840&q=75)
Working with Legacy code. Feature for IBM in an old Babel Plugin [Live] (1/2)
In this episode, I'm adding some tests to an old babel-plugin-ignore-html-and-css-imports package.
"Works on my machine" / how to reset your local git repository without cloning again.
Remove all untracked/ignored files and directories excluding .idea and .vscode folders, list things to remove, and ask for confirmation first.
Automated Testing with Apollo Federation
Taking this opportunity, I'm excited to introduce a package that I hope will make it much easier to test your precious services — federation-testing-tool
Introducing Sessions
A custom video player for time-traveling through coding sessions with activity tracking.
Lukasz GandeckiSite Updates
Site should look good on mobile devices now.
Lukasz GandeckiLaunching Personal Space: A New Chapter in My Journey
Excited to start sharing my thoughts, ideas, and experiences with the world again.
Lukasz GandeckiAdd types to your AWS lambda handler
Lambdas handlers can be invoked with many different, but always complex, event arguments.
Lukasz GandeckiHow to expose a local service to the internet
From time to time you might need to expose your locally running service to the external world
Lukasz GandeckiSharing scalars between modules with Chimp
Now, starting with version chimp@4.1.2 if you just want to use a scalar in a given module, but do not want to redefine it, use @predefined directive.
Lukasz GandeckiAdding TypeScript to the official Apollo Platform Tutorial app
I go through the preparation of the official Apollo Platform Tutorial App for adding Chimp to it.
Lukasz GandeckiAWS CDK Lambda and DynamoDB dependency management
Managing dependencies between Lambdas and DynamoDB tables can get ugly.
Lukasz Gandeckicypress-cucumber-preprocessor 4.1.0 - TSX and Multiline Step Arguments support
We've just released a new version of the cypress-cucumber-preprocessor package.
Lukasz GandeckiChimp 4.0 - resolvers for extended federated types
We've noticed that resolver was frequently unused and left a significant amount of unnecessary code in projects
Lukasz GandeckiDealing with randomness in tests
How to work with dates and other non-deterministic variables.
Lukasz GandeckiHow to deal with the yarn link "There''s already a package called x registered" error
If you work on independent packages (or maybe even open-source npm modules - in which case I salute you!), you probably use the link functionality.
Lukasz GandeckiChoosing between useState and useReducer
Watch me go through the advantages and disadvantages of different ways of using hooks for dealing with state in React.
Lukasz GandeckiGraphQL Federation example updated to Chimp 3.0
We are happy to announce that the example showing many advanced patterns related to GraphQL usage is updated to Chimp 3.0
Lukasz GandeckiRapid Prototyping with JavaScript
A video about rapid prototyping with JavaScript
Lukasz GandeckiHow to fix the annoying "Ensure there is only one instance of graphql" error
If you have been doing serious work with GraphQL over the last few years, you surely saw this error at one time or another
Lukasz GandeckiUpdating from Chimp 2 to 3
We've rewritten Chimp to use TypeScript and the fantastic CLI Framework called Oclif.
Lukasz GandeckiHow to deal with inferred TypeScript types and stop using any
What do you do when you are in need to figure out a complex type?
Lukasz GandeckiHow to never add WebStorm .idea folder to git ever again
Frequently when you work with an open-source repository you might accidentally commit your .idea folder to it.
Lukasz GandeckiHow to pass a class to a function in TypeScript
An example of passing a class to a function in TypeScript
Lukasz GandeckiCreating Tables with DynamoDB Toolbox
I'm playing around with DynamoDB Toolbox, and one thing that wasn't clear in my mind was how do I actually create a table using the definitions I made using Toolbox.
Lukasz GandeckiInstantly update your Lambda functions (development)
Deploying the whole stack whenever you want to check your changes is tiresome and boring.
Lukasz GandeckiCentralize your AWS Lambda Errors
Having multiple independent lambda functions is great, but it comes with a price of difficult monitoring.
Lukasz GandeckiMake Oh My Zsh history play nicely with WebStorm / IntelliJ
Disappearing history entries were bugging me for a long time. I would try to look for a command that I KNEW I recently typed, but it was gone.
Lukasz GandeckiHow to easily develop and deploy TypeScript Lambda functions
We wanted the TypeScript Lambda experience to be seamless - if a developer wants to create a new function, he should create a typescript file, add it to CDK and that's it.
Lukasz GandeckiChimp v2.3.0 released. Custom Prefixes for Monorepos
With the new version chimp allows you to set up custom prefixes for your chimp apps.
Lukasz GandeckiHow to mock files with TestDouble, TypeScript and Jest
Let's assume a structure of two files, first a file with a function that calls a separate function and performs some logic based on the information received
Lukasz GandeckiWhy so loud, jest?
With this tiny plugin, you will be able to see ONLY RELEVANT console messages.
Lukasz GandeckiGenerate your Apollo DataSources
Using GraphQL as your aggregation layer for your microservices is great, but writing all the code for connecting to them is not.
Lukasz GandeckiComparison of the GraphQL Workflow with/without Chimp
Let's take a look at how using chimp can benefit your workflow when working on GraphQL Apollo Server.
Lukasz GandeckiAdding Semantic Release to an old Babel Plugin [Live] (2/2)
In the second part of the live coding with babel-plugin-ignore-html-and-css-imports package, I'm adding the Semantic Release through Github Actions to it.
Lukasz GandeckiWorking with Legacy code. Feature for IBM in an old Babel Plugin [Live] (1/2)
In this episode, I'm adding some tests to an old babel-plugin-ignore-html-and-css-imports package.
Lukasz Gandecki"Works on my machine" / how to reset your local git repository without cloning again.
Remove all untracked/ignored files and directories excluding .idea and .vscode folders, list things to remove, and ask for confirmation first.
Lukasz Gandecki