In this task you will learn how to work with http module in Node.js, creating your own simple server.

You need to create and export (as an object field) a createServer function inside src/createServer.js. Inside the function you should implement a server (from http module) and return it.

You can create as many files as you want and split logic between them.

Server should have single function - converting text between cases. Supported cases:

• snake_case (SNAKE)
• kebab-case (KEBAB)
• camelCase (CAMEL)
• PascalCase (PASCAL)
• UPPER_CASE (UPPER)

Server accepts request to the URL in the next format: /<TEXT_TO_CONVERT>?toCase=<CASE_NAME>.

Examples: For request /createServer?toCase=SNAKE result should be create_server.

Business logic (converting cases) are carefully implemented for you to focus on work with the server specific stuff. You need to work on reading data from URL, validating it, forming response and errors.

Server should always respond with a JSON type. That means you should always add a correct Content-Type header.

Text in the URL and query param toCase are mandatory. Also, toCase value should be one of the supported cases. If something is not correct, you should respond with 400 status, Bad request statusText and the next payload:

{
  "errors": [
    {
      "message": "<SPECIFIC MESSAGE TEXT HERE>"
    }
  ],
}

Array of messages can contain more than one error. For example, if both text and case are not provided.

Messages:

• If text is missing: Text to convert is required. Correct request is: "/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".
• If toCase is missing: "toCase" query param is required. Correct request is: "/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".
• If toCase value is not from listed above: This case is not supported. Available cases: SNAKE, KEBAB, CAMEL, PASCAL, UPPER.

If validation is called you should invoke business logic (convertToCase function from src/convertToCase folder). It accepts two params: case name and text to convert.

Business logic is also covered with tests. They are already passed. Just for you to be sure that it works correctly.

Function return the next object:

{
  originalCase: 'CASE_NAME',
  convertedText: 'CONVERTED_TEXT',
}

For example:

const result = convertToCase('UPPER', 'writeFile');

console.log(result); // { originalCase: 'CAMEL', convertedText: 'WRITE_FILE' }

You should respond with status 200 and OK status text.

Response body should be the next JSON:

{
  "originalCase": "CASE_NAME",
  "targetCase": "CASE_NAME",
  "originalText": "ORIGINAL_TEXT",
  "convertedText": "CONVERTED_TEXT"
}

Example:

{
  "originalCase": "KEBAB",
  "targetCase": "PASCAL",
  "originalText": "hello-world",
  "convertedText": "HelloWorld"
}

• Fork this repo.
• After cloning repo, run npm i.
• Run npm run test:watch to have automatically rerun tests on code change.
• Work until all tests are green.
• Commit and push changes.
• Make PR to Mate academy repo.

You can run npm start to have working server locally.