JSON Key Checker

A VS Code extension that validates method calls against keys in your JSON files.
Useful for catching missing or unused keys in localization files, error message dictionaries, and more.

✨ Features

• 🔍 Checks JSON keys used in your code against JSON files.
• ⚡ Supports configurable regex patterns for method calls.
• 📂 Works across multiple file types (.ts, .tsx, .js, etc.).
• 🎯 Helps prevent runtime errors caused by missing keys.
• 🛠 Fully configurable via VS Code settings.

⚙️ Extension Settings

This extension contributes the following settings:

jsonKeyChecker.patterns object fields

Each entry in jsonKeyChecker.patterns supports the following properties:

🔧 Example Configuration

Add the following to your VS Code settings.json to configure the extension:

{
  "jsonKeyChecker.enabled": true,
  "jsonKeyChecker.patterns": [
    {
      "name": "UI Texts",
      "jsonFiles": ["locales/*.json"],
      "methodPatterns": ["t\\(['\"](https://github.com/lpdalmont/json-key-checker/blob/HEAD/[a-zA-Z0-9_.-]+)['\"]\\)"],
      "fileExtensions": [".ts", ".tsx", ".js"]
    },
    {
      "name": "Error Messages",
      "jsonFiles": ["errors/*.json"],
      "methodPatterns": ["error\\(['\"](https://github.com/lpdalmont/json-key-checker/blob/HEAD/[a-zA-Z0-9_.-]+)['\"]\\)"],
      "fileExtensions": [".ts", ".js"]
    }
  ]
}

Release Notes

0.0.1

This is a pre-release.