GitHub - sbeltran10/react-native-questionnaire-quest: React native questionnaire components

Content

1. QuestionnaireQuest

2. Initial Setup & Installation

3. Components

4. API Guide

5. Styling Guide

6. Lambdas: Question Generation Code

a. DynamoDB_Answers_Read

lambda
a. DynamoDB_Answers_Read
b. DynamoDB_Answers_Read_ById
c. Dynamo_Answers_Read_ByParentId
d. DynamoDB_Answers_write
e. DynamoDB_Questionnaire_Read
f. DynamoDB_Questionnaire_Read_ById
g. DynamoDB_Questionnaire_Read_ByType
h. DynamoDB_Questionnaire_Write
i. DynamoDB_Questions_Quiz_Write
j. DynamoDB_Questions_Read
k. DynamoDB_Questions_ReadContent_ById
l. DynamoDB_Questions_ReadCorrectAnswer_ById
m. DynamoDB_Questions_Read_ById
n. DynamoDB_Questions_Write

7. Team

1. QuestionnaireQuest App

The application is a media rich branching questionnaire designed in React-Native. Three different types of questionnaire are supported: survey, quiz and game.

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2. Initial Setup & Installation

To test the application in the Emulator, set up Xcode / Android Studio per specified in React Native CLI Quickstart Instructions.

note:

Ensure to toggle to desired OS/Platforms options to view the corresponding setup instructions.

Creating a Host Application

To create new React-Native App: $react-native init

Folders & Files needed:

src (folder)
package.json
QuestionnaireQuest.js

Embedding the Child Application

Folders & Files needed:

src (folder)
QuestionnaireQuest.js

Dependencies required in package.json include the following:

  "dependencies": {
     .
     .
     .
    "lodash": "^4.17.11",
    "prop-types": "^15.7.2",
    "react-native-autoheight-webview": "^1.0.1",
    "react-native-autoreheight-webview": "^1.1.1",
    "react-native-gesture-handler": "^1.1.0",
    "react-native-vector-icons": "^6.4.2",
    "react-native-elements": "^1.1.0",
    "react-native-webview": "^5.8.1"
  },

After copying the src folder and QuestionnaireQuest.js to the project root, open your project's package.json
Compare and copy missing dependencies from the list above
$ npm install
$ react-native link react-native-gesture-handler (at project root)
$ react-native link react-native-vector-icons (at project root)
$ react-native run-ios** OR **react-native run-android (builds app)

Embedding the Component

To embed the QuestionnaireQuest component you must return the tag by itself.

import React, {Component} from 'react';
import QuestionnaireQuest from './QuestionnaireQuest';
export default class App extends Component {
  render() {
    return (
        <QuestionnaireQuest></QuestionnaireQuest>
    );
  }
}

Common Errors at Initial Setup:

If “Material Icon” error (“Unrecognized front family ‘Material Icons”) in IOS or if styling library does not implement in Android:

Run \$react-native link react-native-vector-icons , then build project again $react-native run-ios (at project root)

OR

Delete Items inside of build folder ( iOS > build ), rebuild project $react-native run-ios or $react-native run-android

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3. Components

AnswerCorrectIncorrect PropTypes

Name	Type	Description
correctAnswer	object	Correct answer associated with currently selected question
saveAnswerSelection	func	function called to save answer, triggered when next button is pressed
selectedAnswer	array	currently selected answer

GameAnswer PropTypes

Name	Type	Description
onExitButtonPush	func	Called when the exit button is pressed
questionnaire	array	Questionnaire choices

Index PropTypes

Name	Type	Description
fetchQuestionnaire	func	Callback to retrieve the filtered questionnaires
onPickerValueChange	func	Callback to update the category state
questionnaires	array	Array containing the queried questionnaires
selectedQuestionnaireId	number	Primary key of the selected questionnaire
type	string	Sting containing the questionnaire category
updateSelectedQuestionnaireId	func	Callback to update the chosen questionnaire id

Outcome PropTypes

Name	Type	Description
isLoading	bool	Correct answer associated with the currently active question
saveAnswerSelection	func	Function called to save the answer selection, triggered when the next button is pressed
selectedAnswer	array	Currently selected answer

Question PropTypes

Name	Type	Description
answers	array	Answers associated with the currently active question
checkAnswer	func	Function called when an answer is submitted using the the button
correctAnswer	object	Correct answer in case the type of questionnaire is a quiz
modalVisible	bool	Controls whenever the modal containing the correct/incorrect selection is visible
question	array	Currently active question
saveAnswerSelection	func	Function used to submit the answer selection, updating the currently active question and answers
selectAnswer	func	Function called when an answer is picked from the list
selectedAnswer	array	Currently selected answer

QuestionnaireList PropTypes

Name	Type	Description
onSelect	func	Callback to update the category state
questionnaires	array	Array containing the queried questionnaires
selectedQuestionnaireId	number	Primary key of the selected questionnaire

QuestionnaireType PropTypes

Name	Type	Description
onExitButtonPress	func	Called when the exit button is pressed

Quiz Results PropTypes

Name	Type	Description
onExitButtonPress	func	Called when the exit button is pressed

SurveyResults PropTypes

Name	Type	Description
onExitButtonPress	func	Function to be called when the exit button is pressed
resultsText	string	Text to display

State Variables

Name	Type	Description
answers	array	List of all the answers from the database
countCorrect	int	Total number of correct answers
currentStep	string	The name of the page to be rendered
modalVisible	bool	Will determine if the question/answer result is displayed after an answer is submitted
question	array	List of the questions
questionnaire	array	Filtered list of questionnaires based on the type
questionnaires	array	List of all questionnaires from the database
selectedAnswer	int	Index of the selected answer
selectedQuestionnaireID	int	Index of currently selected questionnaire
selectedQuestionaireTitle	string	Title of currently selected questionnaire
summary	array	Survey/quiz questions, result and correct answer
totalCountOfQuestions	int	Number of questions in a questionnaire
type	string	Questionnaire category

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4. API Guide:

This React Native Component utilizes 3 different API function containers to fetch the appropriate Questionnaire(Survey, Quiz) or Choose Your Own Adventure game. The files for each container are located inside the src/api folder. For the components to work correctly, the API functions should return JavaScript objects of the following type to the main app.js container via callbacks.

QuestionnaireAPI

Property	Type	Description
id	number	Id of the questionnaire
title	string	Title text that appears on the intro screen
desc	string	Detailed description of the questionnaire
questionnaireType	string	Can be one of the following: "survey", "quiz", "game"
firstQuestionId	number	Id of the first question to fetch when starting the questionnaire
endText	string (optional)	Text that appears after the last question has been answered

Questionnaire JSON example:

{

id: 1,

title: "Survey Title",

desc: "Survey Description",

questionnaireType: "survey",

firstQuestionId: 1

}

{

id: 2,

title: "Quiz Title",

desc: "Quiz Description",

questionnaireType: "quiz",

firstQuestionId: 2

}

{

id: 3,

title: "Game Title",

desc: "Game Description",

questionnaireType: "game",

firstQuestionId: 3

}

QuestionAPI

Property	Type	Description
id	number	Id of the question
content	string	Text of the answer
isMultiple	boolean (optional)	For questionnaires of the type "survey", this property determines if multiple answers can be selected
correctAnswerId	number (optional)	Id of the correct answer if the questionnaire type is "quiz"
mediaLink	string (optional)	Link pointing to any multimedia the question is associated with. Can be a video, image or audio

Question JSON example:

Survey Question:

{

id: 1,

content: "Question content"

}

Quiz Question:

{

id: 2,

content: "Question content",

correctAnswerId: 2

}

AnswerAPI

Property	Type	Description
id	number	Id of the answer
content	string	Text of the answer
parentQuestion	number	Id of the question this answers belongs to
childQuestion	number	Id of the questions this answers leads to. If the value is -1 this means that the answer is the last of the questionnaire
outcome	string (optional)	Text that explains what happens when selecting this answer. Used if the questionnaire type is "game"

Answer JSON example:

{

id: 2,

content: "Answer content",

parentQuestion: 2,

childQuestion: 3

}

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5. Styling Guide

The styling of the functional components is handled by having one style file for each functional component file. These style files are located inside the src/styles folder and the name of each file is the same as the name of its corresponding component.

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6. Lambdas for Backend Question Generation

a) DynamoDB_Answers_Read

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
exports.handler  = function(e, ctx, callback) 
{
	let scanningParameters = 
	{
		TableName: 'Answers',
		Limit: 100
	}
	docClient.scan(scanningParameters, function(err, data) 
	{
		if(err) 
		{
			callback(err,null);
		}
		else 
		{
			callback(null, data);
		}
	});   
}

b) DynamoDB_Answers_Read_ById

const AWS = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
const table = "Answers";
var error = null;
exports.handler  = function(e, ctx, callback) 
{
	if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
	{
		error = new Error("You must supply a number > 0 for the id of the answers");
		callback(error);
	}
	else
	{
		if ( e.id > 0)
		{
			let newid = parseInt(e.id);
			let scanningParameters = 
			{
				TableName: table,
				FilterExpression : 'id = :this_id',
				ExpressionAttributeValues : {':this_id' : newid}
			}
			docClient.scan(scanningParameters, function(err, data) 
			{
				if(err) 
				{
					callback(err,null);
				}
				else 
				{
					callback(null, data);
				}
			}); 
		}
		else
		{
			error = new Error("You must supply a number > 0 for the id of the answers");
			callback(error);
		}
	}
}

c) Dynamo_Answers_Read_ByParentId

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
const table = "Answers";
var error = null;

exports.handler  = function(e, ctx, callback) 
{
    if ( !e.parentQuestion || e.parentQuestion == undefined || e.parentQuestion == "" || e.parentQuestion == 0 || e.parentQuestion <= 0 )
    {
        error = new Error("You must supply a number > 0 for the parentQuestion of the answer");
        callback(error);
    }
    else
    {
        if ( e.parentQuestion > 0)
        {
            let newid = parseInt(e.parentQuestion);
            let scanningParameters = 
            {
                TableName: table,
                FilterExpression : 'parentQuestion = :this_id',
                ExpressionAttributeValues : {':this_id' : newid}
            }
            docClient.scan(scanningParameters, function(err, data) 
            {
                if(err) 
                {
                    callback(err,null);
                }
                else 
                {
                    callback(null, data);
                }
            }); 
        }
        else
        {
            error = new Error("You must supply a number > 0 for the parentQuestion of the answer");
            callback(error);
        }
    }
}

d) DynamoDB_Answers_write

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
var error = null;
var table = "Answers";
exports.handler  = function(e, ctx, callback) 
{
    if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
    {
        error = new Error("You must supply a number > 0 for the id of the answer");
        callback(error);
    }
    else if (!e.content || e.content == undefined || e.content == "" || e.content.length <  1)
    {
        error = new Error("You must supply content with minimum of 1 letters");
        callback(error);
    }
    else if (!e.parentQuestion || e.parentQuestion == undefined || e.parentQuestion == "" || e.parentQuestion == 0 || e.parentQuestion <= 0)
    {
        error = new Error("You must supply a number > 0 for the parentQuestion of the answer");
        callback(error);
    }
    else if (!e.childQuestion || e.childQuestion == undefined || e.childQuestion == "" || e.childQuestion == 0 || e.childQuestion < -1)
    {
        error = new Error("You must supply a number > 0 for the childQuestion of the answer");
        callback(error);
    }
    else
    {
        if ( e.id > 0)
        {
            if ( e.parentQuestion > 0)
            {
                if ( e.childQuestion >= -1)
                {
                    var params = 
                    {
                        Item: 
                        {
                            id: e.id,
                            content: e.content,
                            parentQuestion: e.parentQuestion,
                            childQuestion: e.childQuestion,
                            outcome: e.outcome
                        },
                        TableName: table,
                        ConditionExpression: "attribute_not_exists(id)",
                        required: ["id"],
                        required: ["content"],
                        required: ["parentQuestion"],
                        required: ["childQuestion"]

                    };
   
                    docClient.put(params, function(err, data) 
                    {
                        if(err) 
                        {
                            callback(err,null);
                        }
                        else 
                        {
                            callback(null, params);
                        }
                    });   
                }
                else
                {
                    error = new Error("You must supply a number > 0 for the childQuestion of the answer");
                    callback(error);
                }
            }
            else
            {
                error = new Error("You must supply a number > 0 for the parentQuestion of the answer");
                callback(error);
            }
        }
        else
        {
            error = new Error("You must supply a number > 0 for the id of the answer");
            callback(error);
        }
    }
}

e) DynamoDB_Questionnaire_Read

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});

exports.handler  = function(e, ctx, callback) 
{
    let scanningParameters = 
	{
        TableName: 'Questionnaire',
        Limit: 100
    }
    
    docClient.scan(scanningParameters, function(err, data) 
	{
        if(err) 
		{
            callback(err,null);
        }
        else 
		{
            callback(null, data);
        }
    });   
}

f) DynamoDB_Questionnaire_Read_ById

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
const table = "Questionnaire";
var error = null;

exports.handler  = function(e, ctx, callback) 
{
    if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
    {
        error = new Error("You must supply a number > 0 for the id of the questionnaire");
        callback(error);
    }
    else
    {
        if ( e.id > 0)
        {
            let newid = parseInt(e.id);
            let scanningParameters = 
            {
                TableName: table,
                FilterExpression : 'id = :this_id',
             ExpressionAttributeValues : {':this_id' : newid}
            }
            docClient.scan(scanningParameters, function(err, data) 
            {
                if(err) 
                {
                    callback(err,null);
                }
                else 
                {
                    callback(null, data);
                }
            }); 
        }
        else
        {
            error = new Error("You must supply a number > 0 for the id of the questionnaire");
            callback(error);
        }
    }
}

g) DynamoDB_Questionnaire_Read_ByType

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
const table = "Questionnaire";
var error = null;
exports.handler  = function(e, ctx, callback) 
{
    if ( !e.questionnaireType || e.questionnaireType == undefined || e.questionnaireType == "" )
    {
        error = new Error("You must supply a valid questionnaireType of either quiz, game, or survey");
        callback(error);
    }
    else if (e.questionnaireType !== "game" && e.questionnaireType !== "quiz" && e.questionnaireType !== "survey")
    {
        error = new Error("You must supply a valid questionnaireType of either quiz, game, or survey");
        callback(error); 
    }
    else
    {
        let newtype = e.questionnaireType;
        let scanningParameters = 
        {
            TableName: table,
            FilterExpression : 'questionnaireType = :this_type',
            ExpressionAttributeValues : {':this_type' : newtype}
        }
        docClient.scan(scanningParameters, function(err, data) 
        {
            if(err) 
            {
                callback(err,null);
            }
            else 
            {
                callback(null, data);
            }
        });  
    }
}

h) DynamoDB_Questionnaire_Write

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
var error = null;
exports.handler  = function(e, ctx, callback) 
{
	if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
	{
		error = new Error("You must supply a number > 0 for the id of the questionnaire");
		callback(error);
 	}
	else if ( !e.firstQuestionId || e.firstQuestionId == undefined || e.firstQuestionId == "" || e.firstQuestionId === 0 || e.firstQuestionId <= 0 )
	{
		error = new Error("You must supply a number > 0 for the first question id of the questionnaire");
		callback(error);
	}
	else if ( !e.title || e.title == undefined || e.title == "" || e.title.length <  10 )
	{
		error = new Error("You must supply a valid title for the questionnaire with a length of at least 10 characters");
		callback(error);
	}
	else if ( !e.desc || e.desc == undefined || e.desc == "" || e.desc.length <  10 )
	{
		error = new Error("You must supply a valid description for the questionnaire with a length of at least 10 characters");
		callback(error);
	}
	else if ( !e.questionnaireType || e.questionnaireType == undefined || e.questionnaireType == "")
	{
		error = new Error("You must supply a valid questionnaire type of either quiz, game, or survey");
		callback(error);
	}
	else if ( e.questionnaireType !== "game" && e.questionnaireType !== "quiz" && e.questionnaireType !== "survey")
	{
		error = new Error("You must supply a valid questionnaire type of either quiz, game, or survey");
		callback(error);
	}
	else
	{
		if (e.id > 0)
		{
			if ( e.firstQuestionId > 0)
			{
				if ( e.questionnaireType == "game")
				{
					if ( !e.endText || e.endText == undefined || e.endText == "" || e.endText.length <  3 )
					{
						error = new Error("You must supply a valid endText for the questionnaire with a length of at least 3 characters");
						callback(error);
					}
					else
					{
						var params = 
						{
							Item: 
							{
								id: e.id,
								title:   e.title,
								desc: e.desc,
								questionnaireType: e.questionnaireType,
								firstQuestionId: e.firstQuestionId,
								endText: e.endText
							},
							TableName: 'Questionnaire',
							ConditionExpression: "attribute_not_exists(id)",
							"required": ["id"],
							"required": ["title"],
							"required": ["desc"],
							"required": ["questionnaireType"],
							"required": ["firstQuestionId"],
							"required": ["endText"]
						};
						docClient.put(params, function(err, data) 
						{
							if(err) 
							{
								callback(err,null);
							}
							else 
							{
								callback(null, params);
							}
						}); 
					}
				}
				else
				{
					var params = 
					{
						Item: 
						{
							id: e.id,
							title:   e.title,
							desc: e.desc,
							questionnaireType: e.questionnaireType,
							firstQuestionId: e.firstQuestionId
						},
						TableName: 'Questionnaire',
						ConditionExpression: "attribute_not_exists(id)",
						"required": ["id"],
						"required": ["title"],
						"required": ["desc"],
						"required": ["questionnaireType"],
						"required": ["firstQuestionId"]
					};
					docClient.put(params, function(err, data) 
					{
						if(err) 
						{
							callback(err,null);
						}
						else 
						{
							callback(null, params);
						}
					}); 
				}
			}
			else
			{
				error = new Error("You must supply a number > 0 for the firstQuestionId of the questionnaire");
				callback(error);
			}
		}
		else
		{
			error = new Error("You must supply a number > 0 for the id of the questionnaire");
			callback(error);
		}
	}
}

i) DynamoDB_Questions_Quiz_Write

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
var table = "Questions";
var error = null;

exports.handler  = function(e, ctx, callback) 
{
    if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
    {
        error = new Error("You must supply a number > 0 for the id of the question");
        callback(error);
    }
    else if ( !e.content || e.content == undefined || e.content == "" || e.content.length <  10 )
    {
        error = new Error("You must supply valid content for the question with a length of at least 10 characters");
        callback(error);
    }
    else if ( !e.correctAnswerId || e.correctAnswerId == undefined || e.correctAnswerId == "" || e.correctAnswerId == 0 || e.correctAnswerId <= 0 )
    {
        error = new Error("You must supply a number > 0 for the correctAnswwerId of the question");
        callback(error);
    }
    else
    {
        if (e.id > 0)
        {
            if (e.correctAnswerId > 0)
            {
                var params = 
                {
                    Item: 
                    {
                        id:   e.id,
                        content: e.content,
                        correctAnswerId: e.correctAnswerId,
                        mediaLink: e.mediaLink
                    },
                    TableName: table,
                    ConditionExpression: "attribute_not_exists(id)",
                    required: ["id"],
                    required: ["content"],
                    required: ["correctAnswerId"]
                };
                docClient.put(params, function(err, data) 
                {
                    if(err) 
                    {
                        callback(err,null);
                    }
                    else 
                    {
                        callback(null, params);
                    }
                }); 
            }
            else
            {
                error = new Error("You must supply a number > 0 for the correctAnswerId of the question");
                callback(error);
            }
        }
        else
        {
            error = new Error("You must supply a number > 0 for the id of the question");
            callback(error);
            
        }
    }
}

j) DynamoDB_Questions_Read

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});

exports.handler  = function(e, ctx, callback) 
{
    let scanningParameters = 
	{
        TableName: 'Questions',
        Limit: 100
    }
    docClient.scan(scanningParameters, function(err, data) 
	{
        if(err) 
		{
            callback(err,null);
        }
        else 
		{
            callback(null, data);
        }
    });   
}

k) DynamoDB_Questions_ReadContent_ById

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
const table = "Questions";
var error = null;
exports.handler  = function(e, ctx, callback) 
{
    if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
    {
        error = new Error("You must supply a number > 0 for the id of the question");
        callback(error);
    }
    else
    {
        if ( e.id > 0)
        {
            let newid = parseInt(e.id);
            let scanningParameters = 
            {
                TableName: table,
                ProjectionExpression : "content", 
                FilterExpression : 'id = :id',
                ExpressionAttributeValues : {':id' : newid}
            }
            docClient.scan(scanningParameters, function(err, data) 
            {
                if(err) 
                {
                    callback(err,null);
                }
                else 
                {
                    callback(null, data);
                }
            });   
        }
        else
        {
            error = new Error("You must supply a number > 0 for the id of the questionn");
            callback(error);
        }
    }
}

l) DynamoDB_Questions_ReadCorrectAnswer_ById

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
const table = "Questions";
var error = null;
exports.handler  = function(e, ctx, callback) 
{
    if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
    {
        error = new Error("You must supply a number > 0 for the id of the question");
        callback(error);
    }
    else
    {
        if ( e.id > 0)
        {
            let newid = parseInt(e.id);
            let scanningParameters = 
            {
                TableName: table,
                ProjectionExpression : "correctAnswerId", 
                FilterExpression : 'id = :id',
                ExpressionAttributeValues : {':id' : newid}
            }
            docClient.scan(scanningParameters, function(err, data) 
            {
                if(err) 
                {
                    callback(err,null);
                }
                else 
                {
                    callback(null, data);
                }
            });
        }
        else
        {
            error = new Error("You must supply a number > 0 for the id of the question");
            callback(error);
        }
    }
}

m) DynamoDB_Questions_Read_ById

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
const table = "Questions";
var error = null;
exports.handler  = function(e, ctx, callback) 
{
    if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
    {
        error = new Error("You must supply a number > 0 for the id of the question");
        callback(error);
    }
    else
    {
        if ( e.id > 0)
        {
            let newid = parseInt(e.id);
            let scanningParameters = 
            {
                TableName: table,
                FilterExpression : 'id = :this_id',
                ExpressionAttributeValues : {':this_id' : newid}
            }
            docClient.scan(scanningParameters, function(err, data) 
            {
                if(err) 
                {
                    callback(err,null);
                }
                else 
                {
                    callback(null, data);
                }
            });   
        }
        else
        {
            error = new Error("You must supply a number > 0 for the id of the question");
            callback(error);
        }
    }
}

n) DynamoDB_Questions_Write

const AWS       = require('aws-sdk');
const docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-2'});
var table = "Questions";
var error = null;

exports.handler  = function(e, ctx, callback) 
{
    if ( !e.id || e.id == undefined || e.id == "" || e.id == 0 || e.id <= 0 )
    {
        error = new Error("You must supply a number > 0 for the id of the question");
        callback(error);
    }
    else if ( !e.content || e.content == undefined || e.content == "" || e.content.length <  10 )
    {
        error = new Error("You must supply valid content for the question with a length of at least 10 characters");
        callback(error);
    }
    else
    {
        if (e.id > 0)
        {
            var params = 
            {
                Item: 
                {
                    id:   e.id,
                    content: e.content,
                    mediaLink: e.mediaLink
                },
                TableName: table,
                ConditionExpression: "attribute_not_exists(id)",
                required: ["id"],
                required: ["content"],
            };
            docClient.put(params, function(err, data) 
            {
                if(err) 
                {
                    callback(err,null);
                }
                else 
                {
                    callback(null, params);
                }
            }); 
        }
        else
        {
            error = new Error("You must supply a number > 0 for the id of the question");
            callback(error);
        }
    }
}

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@c-wyj @ajadversalo @sbeltran10 @Hollychin @GailGoncalves

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Name		Name	Last commit message	Last commit date
Latest commit History 338 Commits
__tests__		__tests__
android		android
assets		assets
example		example
ios		ios
src		src
.gitignore		.gitignore
QuestionnaireQuest.js		QuestionnaireQuest.js
Readme.md		Readme.md
app.json		app.json
babel.config.js		babel.config.js
index.js		index.js
metro.config.js		metro.config.js
package-lock.json		package-lock.json
package.json		package.json

sbeltran10/react-native-questionnaire-quest

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Content

1. QuestionnaireQuest App

2. Initial Setup & Installation

Creating a Host Application

Embedding the Child Application

Embedding the Component

Common Errors at Initial Setup:

3. Components

AnswerCorrectIncorrect PropTypes

GameAnswer PropTypes

Index PropTypes

Outcome PropTypes

Question PropTypes

QuestionnaireList PropTypes

QuestionnaireType PropTypes

Quiz Results PropTypes

SurveyResults PropTypes

State Variables

4. API Guide:

QuestionnaireAPI

Questionnaire JSON example:

QuestionAPI

Question JSON example:

AnswerAPI

Answer JSON example:

5. Styling Guide

6. Lambdas for Backend Question Generation

7. Team

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