typed-redis 0.0.9

Pydantic Models for Redis

Pydantic Models for Redis

Typed Redis provides strongly typed, Pydantic-based models for Redis with built-in validation and serialization.

It offers an async, ORM-like API for creating, retrieving, updating, and deleting data stored in Redis.

Installation

Install with pip

pip install typed_redis

Features

• Add a schema to Redis models with validation and serialization
• Async support
• ORM-like syntax

Example

from typing import Annotated
from typed_redis import Store, RedisPrimaryKey
from redis.asyncio import Redis

redis = Redis(...)

class User(Store(redis), model_name="user"):
    """User model."""

    id: Annotated[int, RedisPrimaryKey]
    name: str


user = User(id=1, name="Charlie")

await user.create()  # Store user object in Redis

# Later:
user = await User.get(1)  # Look up by primary key value
print(user.name)  # "Charlie"

Documentation

Create Store

The Store function takes in your Redis instance and returns back a base class with the ORM operations.

Create a Store:

store.py

from redis.asyncio import Redis
from typed_redis import Store as _Store

redis = Redis(...)

Store = _Store(redis)

Create Model

Using your Store object created earlier, inherit from it and set a model_name class argument to prefix your Redis keys for this model. Annotate one field as the primary key using RedisPrimaryKey. This field value will be used as the value for the Redis key.

Note: The Redis key is derived using the model name and field value.

user.py

from typed_redis import RedisPrimaryKey
from .store import Store

class User(Store, model_name="user"):
    """User model."""

    id: Annotated[int, RedisPrimaryKey]
    name: str

Use Your Model

Now you can use your model:

from .user import User

# Get existing user by primary key value
user = await User.get(1)

# Create new user (idempotent)
new_user = User(id=2, name="Bob")
await new_user() # Same as calling await user.create(...)

# Update user:
await new_user.update(name="Bob Smith")

Supported Operations

Operation	Method	Example	Notes
Create	await instance.create(**kwargs) or await instance(**kwargs)	await user.create(ex=60) or await user(ex=60)	Serializes with model_dump_json() and stores in Redis. Optional kwargs are passed to Redis.
Update	await instance.update(**changes)	await user.update(name="Charlie Brown")	Validates via Pydantic then persists to Redis.
Get	await Model.get(primary_key)	user = await User.get(1)	Key is derived as <model_name>:<pk>. Parses JSON using model_validate_json(...) and returns the model.
Delete	await instance.delete()	await user.delete()	Removes the model from Redis. No further operations are allowed after this is called.

Notes

• Annotate exactly one field with RedisPrimaryKey.
• Bind a Redis client via Store(redis_client) and inherit from it; otherwise, operations raise a RuntimeError.
• Set the model name using the model_name class argument, e.g., class User(Store, model_name="user"):. This determines the Redis key prefix.