I'm building SaaS and documenting the process. Day 5: started API and made changes to the database models

This is the fifth episode in the reality show about the development SaaS app from scratch. The previous episodes:

Open SaaS development from scratch: why and what
Day 1: requirements and UI wireframes
Day 2: admin pages
Day 3: user pages
Day 4: database models, database update, and a couple of new wireframe pages

I started coding API.

First of all, I created a simple method to create a new post.

Then I do the same for creating a new board.

Then I realized that I would probably want to have multiple user owners having access to the same board. What means the relationship between those two entities (user and board) can be many-to-one as I thought before. So, I created one additional table connecting these two (see this manual for reference: https://docs.sqlalchemy.org/en/13/orm/basic_relationships.html

Then I updated the database itself.

Time spent: 1 hour
Total time spent so far: 7 hours 10 minutes