# ☄️ FastAPI Response Schema
[](https://pypi.org/project/fastapi-responseschema/) [](https://pypi.org/project/fastapi-responseschema/) [](https://github.com/acwazz/fastapi-responseschema/releases) [](https://github.com/acwazz/fastapi-responseschema/commit/master) [](https://github.com/acwazz/fastapi-responseschema/actions/workflows/test.yml)[](https://github.com/acwazz/fastapi-responseschema/actions/workflows/lint.yml)
> FastAPI Response Schema is in production now!
## 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 **>=0.66.0**.
## 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
[](https://github.com/acwazz/fastapi-responseschema/graphs/contributors)