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graphql-placeholder

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This project is a NestJS GraphQL implementation of the popular JSON Placeholder API, providing developers with a GraphQL playground for testing and experimentation.

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# GraphQL Placeholder

Welcome to the <a href="https://graphqlplaceholder.vercel.app" target="blank">GraphQL Placeholder</a>!
 
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## Overview

[GraphQL Placeholder](https://graphqlplaceholder.vercel.app) is a [NestJS](https://nestjs.com) GraphQL implementation of the popular [JSON Placeholder](https://jsonplaceholder.typicode.com) API, providing developers with a [GraphQL playground](https://graphqlplaceholder.vercel.app/graphql) for testing and experimentation.

## Features

- No registration
- Zero-config
- Basic GraphQL API
- "Has many" relationships
- Filters and nested queries
- Cross-domain (CORS and JSONP)
- Supports QUERY, MUTATION
- HTTP or HTTPS
- Compatible with React, Angular, Vue, Ember, ...
- An interactive playground for testing GraphQL queries and mutations.
- Built with NestJS for high performance and maintainability.
- Seamless integration with JSON Placeholder API data including posts, comments, users, todos, albums and photos.
- Utilize TypeScript for a smooth and error-free development experience.

## Usage

- **Queries:** Fetch data such as posts, comments, users, etc., from the JSON Placeholder API using GraphQL queries.
- **Mutations:** Test data manipulation operations like creating, updating, and deleting resources.

## Guide
For examples and more, you can visit https://graphqlplaceholder.vercel.app/guide

## Contributing

We welcome contributions from the community! Please read our [CONTRIBUTING.md](./CONTRIBUTING.md) to get started.

## License

This project is licensed under the MIT License - see the [LICENSE](./LICENSE) file for details.

## Stay in touch

- Author - [Enoch Osarenren](https://linkedin.com/in/enoch-osarenren) -->

# GraphQLPlaceholder

[GraphQL Placeholder](https://graphqlplaceholder.vercel.app) is a zero-config GraphQL API built with **NestJS** that mirrors the
popular JSONPlaceholder dataset, designed for rapid frontend and API prototyping.

It provides a realistic GraphQL playground for experimenting with queries, mutations,
relationships, and filters—without setup or authentication.

---

## Why This Exists

Frontend and API developers often need a **stable, realistic GraphQL backend**
to prototype features, test data flows, or explore schema design.

GraphQLPlaceholder solves this by exposing familiar JSONPlaceholder data
through a clean GraphQL schema with support for relationships and nested queries.

---

## What It Provides

- Zero-config GraphQL API (no signup, no setup)
- Query & mutation support
- “Has-many” relationships and nested queries
- Filtering and basic query composition
- Interactive GraphQL Playground
- Cross-origin support (CORS / JSONP)
- Compatible with modern frontend frameworks (React, Vue, Angular, etc.)

---

## Tech Stack & Design

- **NestJS** for structure, scalability, and maintainability
- **GraphQL** schema-first API design
- **TypeScript** for safety and clarity
- Designed to be stateless, fast to spin up, and easy to reason about

---

## Use Cases

- Frontend prototyping and demos
- GraphQL query experimentation
- Learning and testing GraphQL relationships
- Mocking APIs during early product development

---

## Getting Started

Explore the interactive playground and examples here:  
👉 **https://graphqlplaceholder.vercel.app/guide**

---

## Contributing

Contributions are welcome.  
See [CONTRIBUTING.md](./CONTRIBUTING.md) for guidelines.

---

## License

This project is licensed under the MIT License - see the [LICENSE](./LICENSE) doc for details.

---

Built and maintained by [Enoch Osarenren](https://linkedin.com/in/enoch-osarenren)

graphql-placeholder

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