fuckreplitdb 1.7.7

For the devs who wrote apps a bit too big with Replit DB.

General Information and Usage

Overview

The FuckReplitDB class is designed to function as a simple drop-in replacement for Replit DB (or any other key-value store), similar to how you might use a dictionary, but with persistent file-backed storage. It stores data in a JSON-like structure on disk and offers both basic key-value operations and the ability to handle nested dictionaries, making it ideal for use cases where you need to persist data in a file but want a simple API for access and modification.

Key Features

• Drop-in Replacement: The class is designed to work like a Python dictionary, so you can directly replace a dictionary in your code with an instance of FuckReplitDB without changing much of the underlying logic. It supports all the basic dictionary operations like get, set, delete, and checking for key existence.

• Persistent Storage: The data is stored on disk in a file using the orjson format, allowing you to persist data between application runs. This makes it a lightweight alternative to more complex databases for simple applications.

• Nested Data: With support for nested dictionaries, the class allows you to easily represent and manipulate complex hierarchical data structures, making it useful for storing configuration settings, user data, or any other type of structured data.

• Thread-Safe: The class uses threading.Lock to ensure thread-safe operations, so it can be used in multi-threaded environments without the risk of data corruption.

• Simple API: The class exposes an intuitive dictionary-like API, making it easy to use and understand.

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Drop-in Replacement

One of the core design principles behind FuckReplitDB is that it should be as simple to use as a Python dictionary. Here's a quick comparison of using FuckReplitDB versus a regular dictionary:

Using Python Dictionary:

# Using a regular dictionary
my_dict = {}

# Setting a value
my_dict['name'] = 'Alice'

# Getting a value
print(my_dict.get('name'))  # Output: Alice

# Deleting a key
del my_dict['name']

Using FuckReplitDB:

# Using FuckReplitDB for persistent storage
db = FuckReplitDB('data.json')

# Setting a value
db.set('name', 'Alice')

# Getting a value
print(db.get('name'))  # Output: Alice

# Deleting a key
del db['name']

As you can see, the usage of FuckReplitDB is nearly identical to using a regular dictionary. The key difference is that FuckReplitDB persists its data to a file, and operations are thread-safe.

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Advanced Usage

Working with Nested Data

FuckReplitDB supports nested dictionaries using the NestedDict class, which allows you to work with hierarchical data structures. For example:

# Using nested dictionaries
db['user'] = {'name': 'Bob', 'details': {'age': 30, 'city': 'New York'}}

# Accessing nested data
print(db['user']['name'])  # Output: Bob
print(db['user']['details']['age'])  # Output: 30

# Modifying nested data
db['user']['details']['city'] = 'San Francisco'

# Deleting nested data
del db['user']['details']['city']

This feature allows you to manipulate data that is structured in multiple levels, like a user profile with personal information and settings.

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Basic Operations

Setting a Key-Value Pair

You can set values using db.set(key, value) or using dictionary-style syntax:

db.set('age', 25)       # Setting with set()
db['name'] = 'Alice'    # Setting with dictionary-style assignment

Getting a Value

You can retrieve a value using the get() method or the dictionary-style [] operator:

print(db.get('age'))       # Using get()
print(db['name'])          # Using dictionary-style access

Checking for Existence

Check if a key exists with the in operator, just like a regular dictionary:

if 'age' in db:
    print('Age is set')

Deleting a Key

Use del to remove a key from the database:

del db['age']

Iterating over Keys

You can iterate over the keys in the database using db.keys() or by directly iterating over the object:

for key in db:
    print(key)

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Thread Safety

FuckReplitDB ensures that multiple threads accessing the database simultaneously do not cause data corruption or race conditions. The database uses a lock (threading.Lock) around all file operations to make sure that only one thread can read or write to the file at a time.

For example, if you have multiple threads accessing and modifying the database:

import threading

def set_data():
    db.set('name', 'Alice')

threads = []
for _ in range(10):
    t = threading.Thread(target=set_data)
    threads.append(t)
    t.start()

for t in threads:
    t.join()

This is thread-safe because each file operation is locked, preventing concurrent writes or reads that could cause data inconsistency.

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Conclusion

The FuckReplitDB class is an easy-to-use, lightweight, and thread-safe key-value store that can be used as a simple drop-in replacement for Python's built-in dictionary when you need persistent storage. It supports all basic dictionary operations, works with nested data structures, and handles concurrency without any extra complexity on your part. I made this because I wrote an app with Replit DB that got a bit too big for a complete rewrite (oops) so that's where the name came from.