FastMicro
Fast, simple microservice framework
FastMicro is a modern, fast (high-performance) framework for building microservices with Python 3.7+ based on asyncio.
Install
To install FastMicro run the following:
$ pip install fastmicro[redis]
Example
This example shows how to use the default in-memory backend for evaluation and testing.
Note:
The in-memory backend cannot be used for inter-process communication.
Create it
- Create a file
hello.pywith:
#!/usr/bin/env python3
import asyncio
from pydantic import BaseModel
from fastmicro.messaging.memory import Messaging
from fastmicro.service import Service
class User(BaseModel):
name: str
class Greeting(BaseModel):
name: str
greeting: str
service = Service("test")
loop = asyncio.get_event_loop()
messaging = Messaging(loop=loop)
user_topic = messaging.topic("user", User)
greeting_topic = messaging.topic("greeting", Greeting)
@service.entrypoint(user_topic, greeting_topic)
async def greet(user: User) -> Greeting:
greeting = Greeting(name=user.name, greeting=f"Hello, {user.name}!")
return greeting
async def main() -> None:
await service.start()
async with messaging:
user = User(name="Greg")
print(user)
greeting = await service.greet(user)
print(greeting)
await service.stop()
if __name__ == "__main__":
loop.run_until_complete(main())
Run it
$ python hello.py
{'name': 'Greg'}
{'name': 'Greg', 'greeting': 'Hello, Greg!'}
Backends
FastMicro supports the following backends:
To install FastMicro with one of these backends run one of the following:
$ pip install fastmicro[kafka]
$ pip install fastmicro[redis]
Another Example
This example shows how to use the Redis backend for inter-process communication.
Create it
- Create a file
example.pywith:
#!/usr/bin/env python3
import asyncio
from pydantic import BaseModel
from fastmicro.messaging.redis import Messaging
from fastmicro.service import Service
class User(BaseModel):
name: str
class Greeting(BaseModel):
name: str
greeting: str
service = Service("test")
loop = asyncio.get_event_loop()
messaging = Messaging(loop=loop)
user_topic = messaging.topic("user", User)
greeting_topic = messaging.topic("greeting", Greeting)
@service.entrypoint(user_topic, greeting_topic)
async def greet(user: User) -> Greeting:
print(user)
greeting = Greeting(name=user.name, greeting=f"Hello, {user.name}!")
print(greeting)
return greeting
if __name__ == "__main__":
service.run()
- Create a file
test.pywith:
#!/usr/bin/env python3
import asyncio
from pydantic import BaseModel
from fastmicro.messaging.redis import Messaging
from fastmicro.service import Service
class User(BaseModel):
name: str
class Greeting(BaseModel):
name: str
greeting: str
service = Service("test")
loop = asyncio.get_event_loop()
messaging = Messaging(loop=loop)
user_topic = messaging.topic("user", User)
greeting_topic = messaging.topic("greeting", Greeting)
@service.entrypoint(user_topic, greeting_topic)
async def greet(user: User) -> Greeting:
...
async def main() -> None:
async with messaging:
user = User(name="Greg")
print(user)
greeting = await service.greet(user)
print(greeting)
if __name__ == "__main__":
loop.run_until_complete(main())
Run it
- In a terminal run:
1 maintainer
Metadata
1 maintainer
Release files for fastmicro 0.3.2
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Total release size: 25.8 kB
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