appboot 0.3.5

Use FastAPI like Django

App Boot

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AppBoot is a FastAPI project template designed to provide a Django-like structure and development experience.

Technology Stack

• Python 3.9+
• FastAPI
• SQLAlchemy 2.0+
• Pydantic
• Uvicorn

Quick Start

Start a New Project

# Create the project directory
mkdir mysite
cd mysite
# Create a virtual environment to isolate our package dependencies locally
python3 -m venv env
source env/bin/activate  # On Windows use `env\\Scripts\\activate`
# Install appboot and aiosqlite into the virtual environment
pip install appboot aiosqlite
# Set up a new project with a single application
appboot startproject mysite .  # Note the trailing '.' character
# Start the server, application running on http://127.0.0.1:8000
python manage.py runserver

Start a New App 'polls'

python manage.py startapp polls

Create a Model

Define a Question model in polls/models.py.

from datetime import datetime
from sqlalchemy.orm import Mapped
from appboot import models

class Question(models.Model):
    question_text: Mapped[str]
    pub_date: Mapped[datetime]

Create a Schema

Define a QuestionSchema schema in polls/schema.py.

from appboot.schema import ModelSchema
from polls.models import Question

class QuestionSchema(ModelSchema):
    class Meta:
        model = Question

Write CRUD API

Write the CRUD API in polls/views.py.

from fastapi import APIRouter, Depends
from appboot.db import create_tables
from appboot.params import QuerySchema, QueryDepends, PaginationResult
from polls.models import Question
from polls.schema import QuestionSchema

router = APIRouter(dependencies=[Depends(create_tables)])

@router.post('/questions/', response_model=QuestionSchema)
async def create_question(question: QuestionSchema):
    return await question.create()

@router.get('/questions/', response_model=PaginationResult[QuestionSchema])
async def query_questions(query: QuerySchema = QueryDepends()):
    return await query.query_result(Question.objects.clone())

@router.get('/questions/{question_id}', response_model=QuestionSchema)
async def get_question(question_id: int):
    return await Question.objects.get(question_id)

@router.put('/questions/{question_id}', response_model=QuestionSchema)
async def update_question(question_id: int, question: QuestionSchema):
    instance = await Question.objects.get(question_id)
    return await question.update(instance)

@router.delete('/questions/{question_id}', response_model=QuestionSchema)
async def delete_question(question_id: int):
    instance = await Question.objects.get(question_id)
    return await instance.delete()

Configure API Routes

Wire up the API URLs in mysite/urls.py.

from fastapi import APIRouter
from polls.views import router

root_router = APIRouter()
root_router.include_router(router, prefix='/polls', tags=['polls'])

Testing Our API

python manage.py runserver

We can now access our API directly through the browser at http://127.0.0.1:8000/docs/.

Create Complex Query Schema

Create a QuestionQuerySchema for complex queries in polls/schema.py.

from typing import Optional
from appboot.params import QuerySchema
from appboot.filters import EqField, ContainsField

class QuestionQuerySchema(QuerySchema):
    ids: Optional[list[int]] = EqField(None, alias='pk', columns='id')  # Query questions by ID list
    question_text: Optional[str] = ContainsField(None)  # Fuzzy query question_text

Replace QuerySchema with QuestionQuerySchema in polls/views.py, refresh the docs in the browser, and you will see two new query parameters in the query questions API.

Try Out Examples

Go to Examples for more examples.