Word Count Validator Solution

Problem can be found here.

General Usage

Start the server with the following:

bundle install

ruby app.rb

• The server runs on localhost:8000

• GET request to / without any params will return a json with the format:

    {
    	"TEXT": "sample text",
    	"EXCLUDE": ["sample"],
    	"ID": 123456
    }
  

• GET request to / with params "TEXT", "EXCLUDE", "ID", and { word => frequency } key, value pairs will analyse the answer

• If the answer is correct, the server will respond with a 200 status

• If the answer is incorrect, or if the required params is missing, the server will respond with a 400 status

For example, if a GET request to / returns the above json, a GET request to / with the params:

	{
		"TEXT": "sample text",
		"EXCLUDE": ["sample"],
		"ID": 123456,
		"text": 1
	}

will yield a 200 status response because the answer is correct.

	{
		"TEXT": "sample text",
		"EXCLUDE": ["sample"],
		"ID": 123456,
		"text": 1,
		"sample": 1
	}

will yield a 400 response because the answer is incorrect.

Word Counter Logic

The gem LiterateRandomizer was used to generate a random word, sentence, or paragraph each with 1/3 chance. Words were counted using a hash where the word pointed to it's frequency. For each problem, an ID was generated and the answer was saved in a hash where the ID pointed to the word-frequency hash from before. When a request is made with an ID in it's params, the ID is looked up in the answer key and the word-frequency hash is compared to the params to see if the answer is correct. Once the ID is looked up, it is deleted so each question may only be answered once.