API Development and Documentation Final Project

Trivia App

Udacity is invested in creating bonding experiences for its employees and students. A bunch of team members got the idea to hold trivia on a regular basis and created a webpage to manage the trivia app and play the game, but their API experience is limited and still needs to be built out.

The application must:

1. Display questions - both all questions and by category. Questions should show the question, category and difficulty rating by default and can show/hide the answer.
2. Delete questions.
3. Add questions and require that they include question and answer text.
4. Search for questions based on a text query string.
5. Play the quiz game, randomizing either all questions or within a specific category.

Base Path

localhost:5000

---

API Endpoints

GET '/categories'

• Fetches a dictionary of categories in which the keys are the ids and the value is the corresponding string of the category
• Request Arguments: None
• Returns: An object with a single key, categories, that contains an object of id: category_string key: value pairs.

{

"categories": {
    "1": "Science",
    "2": "Art",
    "3": "Geography",
    "4": "History",
    "5": "Entertainment",
    "6": "Sports"
  }

}

GET '/questions?page=${integer}'

• Fetches a paginated set of questions, a total number of questions, all categories and current category string.
• Request Arguments: page - integer
• Returns: An object with 10 paginated questions, total questions, object including all categories, and current category string

{
  "questions": [
    {
      "id": 1,
      "question": "This is a question",
      "answer": "This is an answer",
      "difficulty": 5,
      "category": 2
    }
  ],
  "totalQuestions": 100,
  "categories": {
    "1": "Science",
    "2": "Art",
    "3": "Geography",
    "4": "History",
    "5": "Entertainment",
    "6": "Sports"
  },
  "currentCategory": "History"
}

GET '/categories/${id}/questions'

• Fetches questions for a cateogry specified by id request argument
• Request Arguments: id - integer
• Returns: An object with questions for the specified category, total questions, and current category string

{
  "questions": [
    {
      "id": 1,
      "question": "This is a question",
      "answer": "This is an answer",
      "difficulty": 5,
      "category": 4
    }
  ],
  "totalQuestions": 100,
  "currentCategory": "History"
}

DELETE '/questions/${id}'

• Deletes a specified question using the id of the question
• Request Arguments: id - integer
• Returns: the appropriate HTTP status code.

POST '/quiz'

• Sends a post request in order to get the next question
• Request Body:

{
    "previous_questions": [1, 4, 20, 15],
    "quiz_category": "current category"
 }

• Returns: a single new question object

{
  "question": {
    "id": 1,
    "question": "This is a question",
    "answer": "This is an answer",
    "difficulty": 5,
    "category": 4
  }
}

---

POST '/questions'

• Sends a post request in order to add a new question
• Request Body:

{
  "question": "Heres a new question string",
  "answer": "Heres a new answer string",
  "difficulty": 1,
  "category": 3
}

• Returns: Does not return any new data

POST '/questions/search'

• Sends a post request in order to search for a specific question by search term
• Request Body:

{
  "searchTerm": "this is the term the user is looking for"
}

• Returns: any array of questions, a number of totalQuestions that met the search term and the current category string

{
  "questions": [
    {
      "id": 1,
      "question": "This is a question",
      "answer": "This is an answer",
      "difficulty": 5,
      "category": 5
    }
  ],
  "totalQuestions": 100,
  "currentCategory": "Entertainment"
}

---

Error Codes

400

{
"status": "error",  
"errorCode": "400",  
"message": "Bad request"
}

404

{
"status": " error",  
"errorCode": "404",  
"message": "The requested resource was not found"
}

422

{
"status": "error",  
"errorCode": "422",  
"message": "The request cannot be processed due to an unprocessable entity"
}

500

{
"status": "error",  
"errorCode": "500",  
"message": "Internal server error"
}