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diff --git a/doc/decisions_history.md b/doc/decisions_history.md index 68312e77..fd114ff0 100644 --- a/doc/decisions_history.md +++ b/doc/decisions_history.md @@ -1,5 +1,33 @@ # Technical decisions and issues log +## 2019.07-2020.04 Full Kotlin migration +[@joffrey-bion][1] — :key: *Frontend, Kotlin* + +Synchronizing backend and frontend when making changes to the API is a pain. +Model classes need to be written and modified twice to be kept in sync. +Moreover, a Java client also needs to be maintained to run integration tests +for the server. + +This is why I decided to leverage Kotlin multiplatform capabilities to define +a reusable common model and client. +It took some time because Kotlin itself changed a lot during the past year. + +Also, there was no existing solution for a multiplatform STOMP client, so I +ended up building [Krossbow](https://github.com/joffrey-bion/krossbow). +This took a bit of time too. + +Once a common client and model was defined, there is the problem of the local +project dependencies. +Using a TypeScript/React frontend built with npm, it wasn't possible to depend +on a local gradle subproject. +That's why it was time to try out Kotlin React. + +Kotlin React is easy to use in itself, but using React component libraries +from Kotlin is quite tedious at the time. +Dukat, the TypeScript to Kotlin externals conversion tool, doesn't work +reliably and doesn't work at all for React stuff, so the declarations have to +be written manually. + ## 2019.05.02-07 Frontend migration to TypeScript [@joffrey-bion][1] — :key: *Frontend, TypeScript* |