Files
blog.pyaqa.ru/app/presentation/api/v1/posts.py
Sergey Vanyushkin 87b094220d refactor: migrate to DDD architecture with Dishka DI
Complete architectural refactoring from simple MVC to Clean Architecture/DDD pattern:

Domain Layer:

- Add entities (Post, BaseEntity) with business logic

- Add value objects (Title, Content, Slug) with validation

- Add repository interfaces (PostRepository)

- Add domain exceptions

Application Layer:

- Add use cases (CreatePost, GetPost, UpdatePost, DeletePost, ListPosts, PublishPost)

- Add DTOs for data transfer

- Add TransactionManager interface

Infrastructure Layer:

- Add SQLAlchemy models and async database connection

- Add SQLAlchemyPostRepository implementation

- Add Dishka DI container with providers

- Add error handlers and middleware

Presentation Layer:

- Add FastAPI routes with Dishka integration

- Add Pydantic schemas

- Add dependency injection using FromDishka[T]

Other Changes:

- Remove old flat structure (api/, common/, core/, modules/)

- Add hatchling build system for package scripts

- Add blog CLI command

- Update AGENTS.md with new architecture docs

- All 48 tests passing, mypy clean, ruff clean
2026-05-01 20:20:41 +03:00

212 lines
5.3 KiB
Python

"""Posts API routes."""
from uuid import UUID
from dishka.integrations.fastapi import DishkaRoute
from fastapi import APIRouter, status
from app.application.dtos import CreatePostDTO, UpdatePostDTO
from app.presentation.api.deps import (
CreatePostDep,
CurrentUserDep,
DeletePostDep,
GetPostDep,
ListPostsDep,
PublishPostDep,
UpdatePostDep,
)
from app.presentation.schemas import (
PostCreateSchema,
PostListResponseSchema,
PostResponseSchema,
PostUpdateSchema,
)
router = APIRouter(prefix="/posts", tags=["posts"], route_class=DishkaRoute)
@router.post(
"",
response_model=PostResponseSchema,
status_code=status.HTTP_201_CREATED,
summary="Create a new post",
)
async def create_post(
schema: PostCreateSchema,
use_case: CreatePostDep,
current_user_id: CurrentUserDep,
) -> PostResponseSchema:
"""Create a new blog post."""
dto = CreatePostDTO(
title=schema.title,
content=schema.content,
author_id=current_user_id,
tags=schema.tags,
)
result = await use_case.execute(dto)
return PostResponseSchema(**result.__dict__)
@router.get(
"",
response_model=PostListResponseSchema,
summary="List all posts",
)
async def list_posts(use_case: ListPostsDep) -> PostListResponseSchema:
"""Get all blog posts."""
results = await use_case.all_posts()
items = [PostResponseSchema(**r.__dict__) for r in results]
return PostListResponseSchema(items=items, total=len(items))
@router.get(
"/published",
response_model=PostListResponseSchema,
summary="List published posts",
)
async def list_published_posts(
use_case: ListPostsDep,
) -> PostListResponseSchema:
"""Get all published blog posts."""
results = await use_case.published_posts()
items = [PostResponseSchema(**r.__dict__) for r in results]
return PostListResponseSchema(items=items, total=len(items))
@router.get(
"/search",
response_model=PostListResponseSchema,
summary="Search posts",
)
async def search_posts(
query: str,
use_case: ListPostsDep,
) -> PostListResponseSchema:
"""Search posts by query."""
results = await use_case.search(query)
items = [PostResponseSchema(**r.__dict__) for r in results]
return PostListResponseSchema(items=items, total=len(items))
@router.get(
"/by-tag/{tag}",
response_model=PostListResponseSchema,
summary="Get posts by tag",
)
async def get_posts_by_tag(
tag: str,
use_case: ListPostsDep,
) -> PostListResponseSchema:
"""Get posts by tag."""
results = await use_case.by_tag(tag)
items = [PostResponseSchema(**r.__dict__) for r in results]
return PostListResponseSchema(items=items, total=len(items))
@router.get(
"/by-author/{author_id}",
response_model=PostListResponseSchema,
summary="Get posts by author",
)
async def get_posts_by_author(
author_id: str,
use_case: ListPostsDep,
) -> PostListResponseSchema:
"""Get posts by author."""
results = await use_case.by_author(author_id)
items = [PostResponseSchema(**r.__dict__) for r in results]
return PostListResponseSchema(items=items, total=len(items))
@router.get(
"/{post_id}",
response_model=PostResponseSchema,
summary="Get post by ID",
)
async def get_post(
post_id: UUID,
use_case: GetPostDep,
) -> PostResponseSchema:
"""Get a post by its ID."""
result = await use_case.by_id(post_id)
return PostResponseSchema(**result.__dict__)
@router.get(
"/slug/{slug}",
response_model=PostResponseSchema,
summary="Get post by slug",
)
async def get_post_by_slug(
slug: str,
use_case: GetPostDep,
) -> PostResponseSchema:
"""Get a post by its slug."""
result = await use_case.by_slug(slug)
return PostResponseSchema(**result.__dict__)
@router.patch(
"/{post_id}",
response_model=PostResponseSchema,
summary="Update post",
)
async def update_post(
post_id: UUID,
schema: PostUpdateSchema,
use_case: UpdatePostDep,
current_user_id: CurrentUserDep,
) -> PostResponseSchema:
"""Update a post."""
dto = UpdatePostDTO(
title=schema.title,
content=schema.content,
tags=schema.tags,
)
result = await use_case.execute(post_id, dto, current_user_id)
return PostResponseSchema(**result.__dict__)
@router.delete(
"/{post_id}",
status_code=status.HTTP_204_NO_CONTENT,
summary="Delete post",
)
async def delete_post(
post_id: UUID,
use_case: DeletePostDep,
current_user_id: CurrentUserDep,
) -> None:
"""Delete a post."""
await use_case.execute(post_id, current_user_id)
@router.post(
"/{post_id}/publish",
response_model=PostResponseSchema,
summary="Publish post",
)
async def publish_post(
post_id: UUID,
use_case: PublishPostDep,
current_user_id: CurrentUserDep,
) -> PostResponseSchema:
"""Publish a post."""
result = await use_case.publish(post_id, current_user_id)
return PostResponseSchema(**result.__dict__)
@router.post(
"/{post_id}/unpublish",
response_model=PostResponseSchema,
summary="Unpublish post",
)
async def unpublish_post(
post_id: UUID,
use_case: PublishPostDep,
current_user_id: CurrentUserDep,
) -> PostResponseSchema:
"""Unpublish a post."""
result = await use_case.unpublish(post_id, current_user_id)
return PostResponseSchema(**result.__dict__)