Yes, Stripe does support test cards. However, relying on their test mode can be restrictive due to API rate limits and external dependencies. AcquireMock runs completely offline, gives you full control over limits and webhook retry logic, and is fully customizable since it's open source.
Hi everyone!
I’m the developer of YaraDB, an open-source lightweight document-oriented database written in Python using FastAPI and Pydantic.
YaraDB is designed to be simple, self-hosted, and easy to integrate — perfect for small projects, prototyping, or learning about database internals.
It focuses on transparency and correctness with built-in mechanisms for data integrity, versioning, and recovery.
Features:
- Core Database Engine
- CRUD API — Full create/read/update/delete (archive) operations over REST.
- Write-Ahead Log (WAL) — Ensures data durability and crash safety.
- In-Memory First — Fast O(1) lookups using dictionaries before persistence.
- JSON-Based Storage — The main database snapshot is stored as a single JSON file (yaradb_storage.json).
- Optimistic Concurrency Control (OCC) — Updates require the latest version number to prevent stale writes.
- Data Integrity Hashing — SHA-256 hash verification for every document.
- Soft Deletes — Archives documents with timestamps instead of hard deletion.
- Key-Value Search — Query by exact key-value pairs.
- Combined Documents — Merge multiple documents with flexible strategies.
- Field Processors — Validate and preprocess fields (e.g. email, age).
- Batch Operations — /document/batch/create endpoint for bulk ingest.
- Python Client — Available on PyPI: yaradb-client
I'm still polishing the documentation and adding indexing + replication support.
Feedback, testing, or contributions are all welcome — especially from backend devs, DB engineers, and FastAPI enthusiasts.
