AsyncIO DynamoDB
Asynchronous pythonic DynamoDB client; 2x faster than aiobotocore/boto3/botocore.
Quick start
With httpx
Install this library
pip install "aiodynamo[httpx]" or, for poetry users poetry add aiodynamo -E httpx
Connect to DynamoDB
from aiodynamo.client import Client
from aiodynamo.credentials import Credentials
from aiodynamo.http.httpx import HTTPX
from httpx import AsyncClient
async with AsyncClient() as h:
client = Client(HTTPX(h), Credentials.auto(), "us-east-1")
With aiohttp
Install this library
pip install "aiodynamo[aiohttp]" or, for poetry users poetry add aiodynamo -E aiohttp
Connect to DynamoDB
from aiodynamo.client import Client
from aiodynamo.credentials import Credentials
from aiodynamo.http.aiohttp import AIOHTTP
from aiohttp import ClientSession
async with ClientSession() as session:
client = Client(AIOHTTP(session), Credentials.auto(), "us-east-1")
API use
table = client.table("my-table")
# Create table if it doesn't exist
if not await table.exists():
await table.create(
Throughput(read=10, write=10),
KeySchema(hash_key=KeySpec("key", KeyType.string)),
)
# Create or override an item
await table.put_item({"key": "my-item", "value": 1})
# Get an item
item = await table.get_item({"key": "my-item"})
print(item)
# Update an item, if it exists.
await table.update_item(
{"key": "my-item"}, F("value").add(1), condition=F("key").exists()
)
Why aiodynamo
- boto3 and botocore are synchronous. aiodynamo is built for asynchronous apps.
- aiodynamo is fast. Two times faster than aiobotocore, botocore or boto3 for operations such as query or scan.
- aiobotocore is very low level. aiodynamo provides a pythonic API, using modern Python features. For example, paginated APIs are automatically depaginated using asynchronous iterators.
- Legible source code. botocore and derived libraries generate their interface at runtime, so it cannot be inspected and isn't typed. aiodynamo is hand written code you can read, inspect and understand.
- Pluggable HTTP client. If you're already using an asynchronous HTTP client in your project, you can use it with aiodynamo and don't need to add extra dependencies or run into dependency resolution issues.
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