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AWS AppSync with Lambda Data Sources
The power of GraphQL lies in its flexibility. That is especially the case regarding resolvers, where any local or remote data can be used to fulfill a GraphQL query or mutation.
In this post, I’m going to demo a quick example of what this looks like, and a couple gotchas that were apparent in working with Lambdas as a data source for AppSync. Let’s gooooo!
Case Study – Blockchain In Hyperledger: Better Than ETL?
A Keyhole Case Study In general terms, a blockchain is an immutable transaction ledger in a distributed network of participating peers. Its data includes a string of transaction records secured with cryptography. Benefits of blockchain can include decentralization, immutability, provenance, and finality. While Bitcoin and Ethereum cryptocurrencies brought blockchain to the forefront of technology headlines, the technology underneath has true …
Agile Perspective
You may think of Agile as just another process. While this is incorrect (as it is a framework created to help developers create processes), there is a fundamental difference between this methodology and most methodologies that have come before.
Agile–done the way it was intended–is revolutionary. Fundamentally, Agile is an advocate of a bottom-up development process. I believe this is why it is often proposed with good intention, however then implemented with a top-down, fixed idea of what the Agile team (and hence the process) will be like.
If you take time to read the Agile Manifesto you will read statements like: ”The best architectures, requirements, and designs emerge from self-organizing teams.” Just consider that for a second. The team has the power to keep what works and dispose of what does not.
There are some basic concepts that allow Agile development to be successful. In this post, I highlight the key parts of Agile that appeal to me (as a reluctant process advocate) and have enabled successful Agile development in recent projects…
Getting Started with React and JSX
I have been with Keyhole Software for nearly four years. Every time I write a new blog post it is about a new framework that I had to pick up and learn that year.
I write a lot of JavaScript daily, but previously never had the chance to start coding a project with React. But this year, I worked on a project with React. So as expected, I wanted to share my thoughts and my experiences with React.
In this post, I will give a quick introduction to React and talk about its main, most important, components. We will also take a peek at JSX and explain it, and show some code examples, which will help you have a better understanding of this library before you can move on to more complex things…