Hey everyone,
I’m working on a project where I’m using Flask and Peewee for the backend (Python) and Svelte with TypeScript for the frontend. I’m wondering how to make sure the data types stay consistent between the two.
Does anyone have tips or tricks for keeping everything in sync? I’m worried about running into issues where the frontend expects one type but the backend sends another.
Any advice would be super helpful. Thanks!
hey there! have u tried using pydantic? it’s pretty neat for validating data structures in python. u could define ur models with it and then use those to generate typescript types for the frontend. might help keep things in sync. just a thought!
One effective approach I’ve found is to use a shared schema definition. You could create a JSON schema that defines your data structures and use it to generate both Python and TypeScript types. This ensures consistency across your stack.
For Python, libraries like jsonschema can validate against your schema. On the TypeScript side, you can use json-schema-to-typescript to generate interfaces.
Another option is to leverage OpenAPI (formerly Swagger). Define your API endpoints and data models in a specification file, then use tools to generate both server and client code. This maintains type consistency and provides documentation as a bonus.
Remember to implement thorough testing, especially integration tests, to catch any discrepancies early in the development process.
ooh, that’s an interesting challenge! have you considered using a schema definition language like GraphQL? it can help enforce type consistency across your stack. also, what about generating TypeScript types from your backend models? that could save you some headaches. curious to hear what others think!