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https://github.com/acwazz/fastapi-responseschema

☄️ Global response wrappers for FastAPI
https://github.com/acwazz/fastapi-responseschema

api-wrapper backend backend-development fastapi fastapi-extension python

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☄️ Global response wrappers for FastAPI

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# ☄️ FastAPI Response Schema
[![PyPI](https://img.shields.io/pypi/v/fastapi-responseschema)](https://pypi.org/project/fastapi-responseschema/) [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/fastapi-responseschema)](https://pypi.org/project/fastapi-responseschema/) [![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/acwazz/fastapi-responseschema)](https://github.com/acwazz/fastapi-responseschema/releases) [![Commits](https://img.shields.io/github/last-commit/acwazz/fastapi-responseschema)](https://github.com/acwazz/fastapi-responseschema/commit/master) [![Tests](https://github.com/acwazz/fastapi-responseschema/actions/workflows/test.yml/badge.svg)](https://github.com/acwazz/fastapi-responseschema/actions/workflows/test.yml)[![Lint](https://github.com/acwazz/fastapi-responseschema/actions/workflows/lint.yml/badge.svg)](https://github.com/acwazz/fastapi-responseschema/actions/workflows/lint.yml)

## Overview
This package extends the [FastAPI](https://fastapi.tiangolo.com/) response model schema allowing you to have a common response wrapper via a `fastapi.routing.APIRoute`.

This library supports Python versions **>=3.8** and FastAPI versions **>=0.89.1**.

## Getting started

### Install the package
```sh
pip install fastapi-responseschema
```

If you are planning to use the pagination integration, you can install the package including [fastapi-pagination](https://github.com/uriyyo/fastapi-pagination)
```sh
pip install fastapi-responseschema[pagination]
```

### Usage

```py
from typing import Generic, TypeVar, Any, Optional, List
from pydantic import BaseModel
from fastapi import FastAPI
from fastapi_responseschema import AbstractResponseSchema, SchemaAPIRoute, wrap_app_responses

# Build your "Response Schema"
class ResponseMetadata(BaseModel):
error: bool
message: Optional[str]

T = TypeVar("T")

class ResponseSchema(AbstractResponseSchema[T], Generic[T]):
data: T
meta: ResponseMetadata

@classmethod
def from_exception(cls, reason, status_code, message: str = "Error", **others):
return cls(
data=reason,
meta=ResponseMetadata(error=status_code >= 400, message=message)
)

@classmethod
def from_api_route(
cls, content: Any, status_code: int, description: Optional[str] = None, **others
):
return cls(
data=content,
meta=ResponseMetadata(error=status_code >= 400, message=description)
)

# Create an APIRoute
class Route(SchemaAPIRoute):
response_schema = ResponseSchema

# Integrate in FastAPI app
app = FastAPI()
wrap_app_responses(app, Route)

class Item(BaseModel):
id: int
name: str

@app.get("/items", response_model=List[Item], description="This is a route")
def get_operation():
return [Item(id=1, name="ciao"), Item(id=2, name="hola"), Item(id=3, name="hello")]
```

Te result of `GET /items`:
```http
HTTP/1.1 200 OK
content-length: 131
content-type: application/json

{
"data": [
{
"id": 1,
"name": "ciao"
},
{
"id": 2,
"name": "hola"
},
{
"id": 3,
"name": "hello"
}
],
"meta": {
"error": false,
"message": "This is a route"
}
}
```

## Docs
You can find detailed info for this package in the [Documentation](https://acwazz.github.io/fastapi-responseschema/).

## Contributing

Contributions are very welcome!

### How to contribute
Just open an issue or submit a pull request on [GitHub](https://github.com/acwazz/fastapi-responseschema).

While submitting a pull request describe what changes have been made.

More info on [Docs section](https://acwazz.github.io/fastapi-responseschema/contributing/)

## Contributors Wall
[![Contributors Wall](https://contrib.rocks/image?repo=acwazz/fastapi-responseschema)](https://github.com/acwazz/fastapi-responseschema/graphs/contributors)