How do I connect Camo to a MongoDB database?

Use the URI format 'mongodb://[username:password@]host[:port][/db-name]' with the connect function from Camo. For example, 'mongodb://localhost:27017/mydb' connects to a local MongoDB instance, and you must install the mongodb package separately.

Camo or Mongoose for Node.js MongoDB projects?

Camo is better if you prefer ES6 classes and need lightweight backend options like NeDB, while Mongoose offers more features, a larger community, and better long-term support. Choose Camo for OOP simplicity, but Mongoose for production robustness.

How to add validation rules in Camo schemas?

In the constructor of your document class, define properties with options like type, default, min, max, choices, or match. For instance, 'this.age = { type: Number, min: 0, max: 150 };' enforces age limits on save.

Does Camo support TypeScript out of the box?

No, Camo relies on third-party typings from DefinitelyTyped or IndefinitivelyTyped, which might not be up-to-date. You need to install these separately, and compatibility can vary with newer TypeScript versions.

How to use hooks in Camo for pre-save logic?

Override methods like preSave() in your document class. For example, add 'preSave() { return this.validateData(); }' to execute custom validation before saving, and you can return Promises for async operations.

Can I use Camo in the browser with NeDB?

Yes, Camo supports NeDB with in-memory storage via the 'nedb://memory' URI, making it suitable for client-side applications. Install the nedb package and use it as a backend without a server database.

What are Camo's limitations with embedded documents?

Embedded documents support schemas and validation, but they inherit hooks from their parent document, which can complicate nested logic. Also, performance might degrade with deeply nested structures compared to flat designs.

Camo — ES6 ODM for MongoDB & NeDB

What is Camo?

Camo is an Object-Document Mapper (ODM) for MongoDB-like databases that uses ES6 classes for schema definition. It simplifies database interactions by providing a clean, object-oriented API and supports multiple backends like MongoDB and NeDB, allowing development without a full MongoDB instance. The library includes built-in Promises, schema validation, embedded documents, and hooks to streamline database operations.

Target Audience

JavaScript developers transitioning from class-based languages like Java, or beginners seeking an OOP-friendly interface for MongoDB. It's also suitable for projects needing lightweight database solutions with NeDB for in-memory or file-based storage.

Value Proposition

Developers choose Camo for its ES6 class-based approach, which offers a familiar OOP interface and reduces callback hell with native Promise support. Its unique selling point is backend flexibility, enabling use with MongoDB or NeDB for development without a full database server, plus a lightweight wrapper that maintains performance.

A class-based ES6 ODM for Mongo-like databases.

Use Cases

Best For

Building applications with MongoDB using ES6 classes for an object-oriented programming style.
Developing lightweight projects with NeDB as a backend to avoid installing a full MongoDB instance.
Implementing schema validation with type enforcement, defaults, min/max values, and custom validators in NoSQL databases.
Creating nested document structures with embedded documents that have their own schemas and validation.
Adding pre- and post-hooks for validate, save, and delete operations to execute custom logic automatically.
Transitioning from class-based languages to JavaScript by leveraging familiar OOP patterns for database interactions.

Not Ideal For

Projects requiring comprehensive hook support for all delete operations, since hooks don't trigger on .deleteOne() or .deleteMany()
Teams needing a heavily-maintained ODM with a large community and frequent updates, given the project's last significant activity in 2021
Applications demanding advanced MongoDB features like transactions or aggregation pipelines that Camo doesn't fully abstract
Environments where strict, up-to-date TypeScript integration is critical, as support relies on third-party typings

Pros & Cons

Pros

ES6 Class-Based Design

Uses ES6 classes for schema definition, making it intuitive for developers from object-oriented backgrounds and simplifying code structure with familiar OOP patterns.

Flexible Backend Support

Supports MongoDB and NeDB, allowing development without a full MongoDB instance and enabling in-memory storage for lightweight or browser-based projects.

Built-in Promise Support

All database operations return native Promises, eliminating callback hell and streamlining asynchronous code, as highlighted in the README's focus on modern ES6 features.

Robust Schema Validation

Enforces types, defaults, min/max values, choices, regex matches, and custom validators directly in the schema, providing strong data integrity without extra libraries.

Cons

Incomplete Hook Integration

Hooks for delete operations only work with .delete() on document instances, not with .deleteOne() or .deleteMany(), as admitted in the README, limiting consistency in data management.

Limited Maintenance and Ecosystem

The project's last update was in 2021, and promised features like LokiJS support are still 'coming soon,' indicating potential stagnation and fewer community resources compared to alternatives like Mongoose.

Basic Abstraction Layer

As a thin wrapper, Camo may not abstract complex MongoDB features like transactions, requiring direct driver access for advanced use cases, which can complicate code.

Frequently Asked Questions

What is Camo?

Target Audience

Value Proposition

Use Cases

Best For

Building applications with MongoDB using ES6 classes for an object-oriented programming style.
Developing lightweight projects with NeDB as a backend to avoid installing a full MongoDB instance.
Implementing schema validation with type enforcement, defaults, min/max values, and custom validators in NoSQL databases.
Creating nested document structures with embedded documents that have their own schemas and validation.
Adding pre- and post-hooks for validate, save, and delete operations to execute custom logic automatically.
Transitioning from class-based languages to JavaScript by leveraging familiar OOP patterns for database interactions.

Not Ideal For

Projects requiring comprehensive hook support for all delete operations, since hooks don't trigger on .deleteOne() or .deleteMany()
Teams needing a heavily-maintained ODM with a large community and frequent updates, given the project's last significant activity in 2021
Applications demanding advanced MongoDB features like transactions or aggregation pipelines that Camo doesn't fully abstract
Environments where strict, up-to-date TypeScript integration is critical, as support relies on third-party typings

Pros & Cons

Pros

ES6 Class-Based Design

Uses ES6 classes for schema definition, making it intuitive for developers from object-oriented backgrounds and simplifying code structure with familiar OOP patterns.

Flexible Backend Support

Supports MongoDB and NeDB, allowing development without a full MongoDB instance and enabling in-memory storage for lightweight or browser-based projects.

Built-in Promise Support

All database operations return native Promises, eliminating callback hell and streamlining asynchronous code, as highlighted in the README's focus on modern ES6 features.

Robust Schema Validation

Enforces types, defaults, min/max values, choices, regex matches, and custom validators directly in the schema, providing strong data integrity without extra libraries.

Cons

Incomplete Hook Integration

Hooks for delete operations only work with .delete() on document instances, not with .deleteOne() or .deleteMany(), as admitted in the README, limiting consistency in data management.

Limited Maintenance and Ecosystem

Basic Abstraction Layer

As a thin wrapper, Camo may not abstract complex MongoDB features like transactions, requiring direct driver access for advanced use cases, which can complicate code.

Frequently Asked Questions

Camo

What is Camo?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?

Camo

What is Camo?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?