JSON Generator

A server-rendered JSON Generator web app built with .NET 9 Blazor Server that allows users to define JSON schemas with embedded JavaScript-like syntax using Faker/Chance, and generates mock data instantly. The application also supports generating a unique URL for sharing or fetching the generated data.

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✨ Features

• ✅ Input as JSON, Output as JSON
• 🧠 Evaluate JavaScript-like functions using Jint
• 🌍 Support for data mocking using @faker-js/faker and chance
• 🔁 Supports repeat(n, m) syntax to generate arrays of varying lengths
• 🧩 Automatically detects and executes embedded JavaScript in JSON
• 🔗 Share generated data via unique GET endpoint URLs
• 🌐 Built with .NET 9 Blazor Server

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📥 Sample Input (JSON Schema)

[
  "repeat(2,3)",
  {
    "message": "Hello, faker.person.firstName()! Your order number is: #faker.number.int()",
    "phoneNumber": "faker.phone.number()",
    "phoneVariation": "+90 faker.number.int({ min: 300, max: 399 }) faker.number.int()",
    "status": "faker.helpers.arrayElement(['active', 'disabled'])",
    "name": {
      "first": "faker.person.firstName()",
      "middle": "faker.person.middleName()",
      "last": "faker.person.lastName()"
    },
    "username": "this.name.first + '.' + this.name.last",
    "password": "faker.internet.password()",
    "emails": [
      "repeat(5,6)",
      "faker.internet.email(undefined, undefined, faker.helpers.arrayElement(['gmail.com','hotmail.com','yahoo.com']))"
    ],
    "location": {
      "street": "faker.location.streetAddress()",
      "city": "faker.location.city()",
      "state": "faker.location.state()",
      "country": "faker.location.country()",
      "zip": "faker.location.zipCode()",
      "coordinates": {
        "latitude": "faker.location.latitude()",
        "longitude": "faker.location.longitude()"
      }
    }
  }
]

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📤 Output

Returns fully mocked JSON with evaluated data:

[
  {
    "message": "Hello, John! Your order number is: #42",
    "phoneNumber": "323.572.6461 x1129",
    "phoneVariation": "+90 340 860 33 71",
    "status": "disabled",
    "name": {
      "first": "Mable",
      "middle": "Jamie",
      "last": "Haley"
    },
    "username": "Mable.Haley",
    "password": "j2STckZcf$B_ms",
    "emails": [
      "Felipa70@hotmail.com",
      "Gilbert92@hotmail.com"
    ],
    "location": {
      "street": "546 S Washington Blvd",
      "city": "New York",
      "state": "NY",
      "country": "USA",
      "zip": "10001",
      "coordinates": {
        "latitude": "40.7128",
        "longitude": "-74.0060"
      }
    }
  }
]

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🔗 API Endpoint

Each generation creates a unique URL to access your data via HTTP GET:

https://jsondatagenerator.com/u/{unique-id}

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📦 Packages Used

NPM

• @faker-js/faker
• chance

NuGet (.NET 9)

• BlazorMonaco
• Jint

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🧪 Getting Started (Local Dev)

git clone https://github.com/your-repo/json-generator
cd json-generator
dotnet build
dotnet run

Then visit http://localhost:5000 in your browser.

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📄 License

MIT License. See LICENSE file.