crudtape 0.1.0

Simple in-memory CRUD store for rapid prototyping

crudtape

Like ducktape but for CRUD...

A lightweight in-memory CRUD store for Pydantic-style objects, designed for rapid prototyping with frameworks like FastAPI and Flask.

Installation

pip install crudtape

Usage

The store is designed to work with any model class that implements the basic Storable protocol, which defines a minimal subset of the Pydantic model interface. Importantly, the store does not depend on Pydantic itself - you can use any compatible class. This means:

• Pydantic models (as-is)
• @dataclass decorated classes
• Custom classes built from scratch

The only caveat is that the store manages the object IDs internally. In essence, a compatible model class needs to provide:

• __init__ method that accepts keyword arguments, including an optional id of type int (used when constructing returned objects).
• model_dump() method returning a dictionary representation, excluding the id attribute (it will be ignored by the store otherwise).

import BaseModel from pydantic

class Pet(BaseModel):
    name: str
    age: str
    id: int = None

Additional examples are shown in the test suit.

The class is used to create a corresponding store instance:

import Store from crudtape

store = Store(Pet)

The store offers basic self-explanatory CRUD operations, all typed to the specified model class and with decent error checking. See the API reference for full details.

# insert an object
store.insert(Pet(name="Bob", age=3))

# list all objects 
store.all()

# get an object with given ID
store.get(1)

# update an object with given ID
store.update(1, Pet(name="Rob", age=5))

# delete an object with given ID
store.delete(1)

The store raises StoreError for general failures, with two exceptions: NotFoundError is raised when an object with the given ID doesn’t exist, and TypeError when an input object has the wrong type.