chore: Update API Code Generator documentation and generate sample code for all languages and variants

Author: sumansaurabh

README.md

@@ -1 +1,118 @@
-# api-code-generator
+
+# API Code Generator
+
+API Code Generator is a JavaScript library designed to convert OpenAPI schemas into various code examples. This tool simplifies the process of generating client libraries in different programming languages based on your API documentation.
+
+## Features
+
+- Convert OpenAPI schema to code examples in multiple languages.
+- Easy to use command-line interface.
+
+## Prerequisites
+
+Before installing `api-code-generator`, ensure you have the following installed:
+
+- [Node.js](https://nodejs.org/) (version 12 or higher)
+- npm (Node package manager)
+
+Additionally, you need to install `openapi-to-postmanv2` globally. This can be done using the following command:
+
+```bash
+npm install -g openapi-to-postmanv2
+```
+
+## Installation
+
+To install `api-code-generator`, run the following command:
+
+```bash
+npm install api-code-generator
+```
+
+## Usage
+
+Once installed, you can use `api-code-generator` from the command line to generate code examples from your OpenAPI schemas.
+
+### Generate Code Examples
+
+```bash
+api-code-generator generate -i path/to/your/openapi/schema.yaml -l language -v variant -o path/to/output/code_example
+```
+
+### Options
+
+- `generate`: Generates code examples from an OpenAPI schema.
+  - `-i, --input <path>`: Path to the OpenAPI schema file (required).
+  - `-l, --language <language>`: Programming language for the code example (required).
+  - `-v, --variant <variant>`: Variant of the code generator for the specified language (required).
+  - `-o, --output <path>`: Path to the output code example file (required).
+
+## Supported Code Generators
+
+The tool supports generating code examples for the following languages and variants:
+
+| Language      | Variant       |
+|---------------|---------------|
+| C             | libcurl       |
+| C#            | HttpClient    |
+| C#            | RestSharp     |
+| cURL          | cURL          |
+| Dart          | http          |
+| Go            | Native        |
+| HTTP          | HTTP          |
+| Java          | OkHttp        |
+| Java          | Unirest       |
+| JavaScript    | Fetch         |
+| JavaScript    | jQuery        |
+| JavaScript    | XHR           |
+| Kotlin        | OkHttp        |
+| NodeJs        | Axios         |
+| NodeJs        | Native        |
+| NodeJs        | Request       |
+| NodeJs        | Unirest       |
+| Objective-C   | NSURLSession  |
+| OCaml         | Cohttp        |
+| PHP           | cURL          |
+| PHP           | Guzzle        |
+| PHP           | pecl_http     |
+| PHP           | HTTP_Request2 |
+| PowerShell    | RestMethod    |
+| Python        | http.client   |
+| Python        | Requests      |
+| R             | httr          |
+| R             | RCurl         |
+| Rust          | Reqwest       |
+| Ruby          | Net:HTTP      |
+| Shell         | Httpie        |
+| Shell         | wget          |
+| Swift         | URLSession    |
+
+## Examples
+
+### Example 1: Generate Python Requests Code Example
+
+```bash
+api-code-generator generate -i ./schemas/api.yaml -l Python -v Requests -o ./examples/python_requests_example.py
+```
+
+### Example 2: Generate JavaScript Fetch Code Example
+
+```bash
+api-code-generator generate -i ./schemas/api.yaml -l JavaScript -v Fetch -o ./examples/js_fetch_example.js
+```
+
+## Contributing
+
+Contributions are welcome! Please open an issue or submit a pull request with your changes.
+
+## License
+
+This project is licensed under the ISC License.
+
+## Author
+
+[Your Name]
+
+---
+
+*Footnote: This tool uses `openapi-to-postmanv2` for converting OpenAPI schemas. Please ensure it is installed globally.*