forum-app/backend/forum.py

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Post:
    id: int
    title: str
    content: str

    def __init__(self, id, title, content):
        self.id = id
        self.title = title
        self.content = content


class PostCreate(BaseModel):
    title: str
    content: str


POSTS = []


@app.get("/")
async def home():
    return POSTS


@app.post("/post")
async def create_post(data: PostCreate):
    post = Post(
        id=len(POSTS) + 1,
        title=data.title,
        content=data.content
    )
    POSTS.append(post)
    return POSTS[-1]


@app.get("/{post_id}")
async def get_post(post_id: int):
    for post in POSTS:
        if post.get('post_id') == post_id:
            return post

    return {}