# Combadge
Combadge generates a service client implementation from a user service interface
declared by a [protocol](https://peps.python.org/pep-0544/) class or an abstract base class.
[](https://github.com/kpn/combadge/actions/workflows/check.yaml)
[](https://codecov.io/gh/kpn/combadge)
[](https://pypi.org/project/combadge/)
[](LICENSE)
## Documentation
<a href="https://kpn.github.io/combadge/">
<img alt="Documentation" height="30em" src="https://img.shields.io/github/actions/workflow/status/kpn/combadge/docs.yml?label=documentation&logo=github">
</a>
## Sneak peek
```python title="quickstart_httpx.py"
from typing import List
from httpx import Client
from pydantic import BaseModel, Field
from typing_extensions import Annotated, Protocol
from combadge.support.http.markers import QueryParam, http_method, path
from combadge.support.httpx.backends.sync import HttpxBackend
# 1️⃣ Declare the response models:
class CurrentCondition(BaseModel):
humidity: int
temperature: Annotated[float, Field(alias="temp_C")]
class Weather(BaseModel):
current: Annotated[List[CurrentCondition], Field(alias="current_condition")]
# 2️⃣ Declare the protocol:
class SupportsWttrIn(Protocol):
@http_method("GET")
@path("/{in_}")
def get_weather(
self,
*,
in_: str,
format_: Annotated[str, QueryParam("format")] = "j1",
) -> Weather:
raise NotImplementedError
# 3️⃣ Bind the service:
with HttpxBackend(Client(base_url="https://wttr.in"))[SupportsWttrIn] as service:
# 🚀 Call the service:
response = service.get_weather(in_="amsterdam")
assert response.current[0].humidity == 71
assert response.current[0].temperature == 8.0
```
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"author": "Pavel Perestoronin",
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"description": "# Combadge\n\nCombadge generates a service client implementation from a user service interface\ndeclared by a [protocol](https://peps.python.org/pep-0544/) class or an abstract base class.\n\n[](https://github.com/kpn/combadge/actions/workflows/check.yaml)\n[](https://codecov.io/gh/kpn/combadge)\n\n[](https://pypi.org/project/combadge/)\n[](LICENSE)\n\n## Documentation\n\n<a href=\"https://kpn.github.io/combadge/\">\n <img alt=\"Documentation\" height=\"30em\" src=\"https://img.shields.io/github/actions/workflow/status/kpn/combadge/docs.yml?label=documentation&logo=github\">\n</a>\n\n## Sneak peek\n\n```python title=\"quickstart_httpx.py\"\nfrom typing import List\n\nfrom httpx import Client\nfrom pydantic import BaseModel, Field\nfrom typing_extensions import Annotated, Protocol\n\nfrom combadge.support.http.markers import QueryParam, http_method, path\nfrom combadge.support.httpx.backends.sync import HttpxBackend\n\n\n# 1\ufe0f\u20e3 Declare the response models:\nclass CurrentCondition(BaseModel):\n humidity: int\n temperature: Annotated[float, Field(alias=\"temp_C\")]\n\n\nclass Weather(BaseModel):\n current: Annotated[List[CurrentCondition], Field(alias=\"current_condition\")]\n\n\n# 2\ufe0f\u20e3 Declare the protocol:\nclass SupportsWttrIn(Protocol):\n @http_method(\"GET\")\n @path(\"/{in_}\")\n def get_weather(\n self,\n *,\n in_: str,\n format_: Annotated[str, QueryParam(\"format\")] = \"j1\",\n ) -> Weather:\n raise NotImplementedError\n\n\n# 3\ufe0f\u20e3 Bind the service:\nwith HttpxBackend(Client(base_url=\"https://wttr.in\"))[SupportsWttrIn] as service:\n # \ud83d\ude80 Call the service:\n response = service.get_weather(in_=\"amsterdam\")\n\nassert response.current[0].humidity == 71\nassert response.current[0].temperature == 8.0\n```\n",
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