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server.js
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server.js
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const express = require('express');
const cors = require('cors');
const fs = require('fs');
const app = express();
app.use(cors()); // Enable CORS for all routes
app.use(express.json()); // Parse JSON request bodies
app.post('/update_json', (req, res) => {
// Get the JSON data from the request
const json_data = req.body;
// console.log('Received JSON data:', json_data); // Debug statement
// Read the existing JSON file
const filePath = './src/surveyAll.json';
fs.readFile(filePath, 'utf8', (err, data) => {
if (err) {
return res.status(500).json({ message: 'Error reading JSON file' });
}
let existing_data = JSON.parse(data);
// Update the JSON data
existing_data = { ...existing_data, ...json_data };
// Write the updated JSON data back to the file
fs.writeFile(filePath, JSON.stringify(existing_data, null, 4), (err) => {
if (err) {
return res.status(500).json({ message: 'Error writing to JSON file' });
}
// Return a response indicating success
return res.json({ message: 'JSON file updated successfully' });
});
});
});
app.delete('/delete_survey/:survey_name', (req, res) => {
const survey_name = req.params.survey_name;
// Read the existing JSON file
const filePath = './src/surveyAll.json';
fs.readFile(filePath, 'utf8', (err, data) => {
if (err) {
return res.status(500).json({ message: 'Error reading JSON file' });
}
let existing_data = JSON.parse(data);
let key_to_delete = null;
// Find the key to delete
for (const key in existing_data) {
if (existing_data[key].testName === survey_name) {
key_to_delete = key;
break;
}
}
// Check if a matching survey was found
if (key_to_delete !== null) {
delete existing_data[key_to_delete];
fs.writeFile(filePath, JSON.stringify(existing_data, null, 4), (err) => {
if (err) {
return res.status(500).json({ message: 'Error writing to JSON file' });
}
return res.status(200).json({ message: `Survey ${survey_name} deleted successfully` });
});
} else {
return res.status(404).json({ error: `Survey ${survey_name} not found` });
}
});
});
app.delete('/delete_question/:survey_name/:question_id', (req, res) => {
const survey_name = req.params.survey_name;
const question_id = parseInt(req.params.question_id);
// Read the existing JSON file
const filePath = './src/surveyAll.json';
fs.readFile(filePath, 'utf8', (err, data) => {
if (err) {
return res.status(500).json({ message: 'Error reading JSON file' });
}
let existing_data = JSON.parse(data);
let foundSurvey = null;
let surveyKey = null;
// Find the survey and its key
for (const key in existing_data) {
if (existing_data[key].testName === survey_name) {
foundSurvey = existing_data[key];
surveyKey = key;
break;
}
}
if (foundSurvey && "Questions" in foundSurvey) {
const updatedQuestions = foundSurvey.Questions.filter(q => q.id !== question_id);
foundSurvey.Questions = updatedQuestions;
// Write the updated JSON data back to the file
fs.writeFile(filePath, JSON.stringify(existing_data, null, 4), (err) => {
if (err) {
return res.status(500).json({ message: 'Error writing to JSON file' });
}
return res.status(200).json({ message: `Question ${question_id} deleted successfully from the survey` });
});
} else {
return res.status(404).json({ error: `Question ${question_id} not found in the survey` });
}
});
});
app.delete('/delete_answer/:survey_name/:question_id/:answer_index', (req, res) => {
const survey_name = req.params.survey_name;
const question_id = parseInt(req.params.question_id);
const answer_index = parseInt(req.params.answer_index);
// Read the existing JSON file
const filePath = './src/surveyAll.json';
fs.readFile(filePath, 'utf8', (err, data) => {
if (err) {
return res.status(500).json({ message: 'Error reading JSON file' });
}
let existing_data = JSON.parse(data);
let foundSurvey = null;
let surveyKey = null;
// Find the survey and its key
for (const key in existing_data) {
if (existing_data[key].testName === survey_name) {
foundSurvey = existing_data[key];
surveyKey = key;
break;
}
}
if (foundSurvey && "Questions" in foundSurvey) {
const question = foundSurvey.Questions.find(q => q.id === question_id);
if (question) {
const answerToDelete = question.answers.findIndex(answer => answer.id === answer_index);
if (answerToDelete !== -1) {
question.answers.splice(answerToDelete, 1);
// Write the updated JSON data back to the file
fs.writeFile(filePath, JSON.stringify(existing_data, null, 4), (err) => {
if (err) {
return res.status(500).json({ message: 'Error writing to JSON file' });
}
return res.status(200).json({ message: `Answer at index ${answer_index} deleted successfully from the question in the survey` });
});
} else {
return res.status(404).json({ error: `Answer at index ${answer_index} not found in the question` });
}
} else {
return res.status(404).json({ error: `Question ${question_id} not found in the survey` });
}
} else {
return res.status(404).json({ error: `Survey not found` });
}
});
});
app.delete('/delete_suggestion/:survey_name/:suggestion_range', (req, res) => {
const survey_name = req.params.survey_name;
const suggestion_range = req.params.suggestion_range;
// Read the existing JSON file
const filePath = './src/surveyAll.json';
fs.readFile(filePath, 'utf8', (err, data) => {
if (err) {
return res.status(500).json({ message: 'Error reading JSON file' });
}
let existing_data = JSON.parse(data);
let foundSurvey = null;
let surveyKey = null;
// Find the survey and its key
for (const key in existing_data) {
if (existing_data[key].testName === survey_name) {
foundSurvey = existing_data[key];
surveyKey = key;
break;
}
}
if (foundSurvey && "Suggestions" in foundSurvey && foundSurvey.Suggestions[suggestion_range] !== undefined) {
delete foundSurvey.Suggestions[suggestion_range];
// Write the updated JSON data back to the file
fs.writeFile(filePath, JSON.stringify(existing_data, null, 4), (err) => {
if (err) {
return res.status(500).json({ message: 'Error writing to JSON file' });
}
return res.status(200).json({ message: `Suggestion with range ${suggestion_range} deleted successfully from the survey` });
});
} else {
return res.status(404).json({ error: `Suggestion with range ${suggestion_range} not found in the survey` });
}
});
});
app.post('/add_question', (req, res) => {
// Get the JSON data from the request
const json_data = req.body;
// Get the survey name and the question data from the JSON data
const survey_name = json_data.survey_name;
const question_data = json_data.question_data;
// Read the existing JSON file
const filePath = './src/surveyAll.json';
fs.readFile(filePath, 'utf8', (err, data) => {
if (err) {
return res.status(500).json({ message: 'Error reading JSON file' });
}
let existing_data = JSON.parse(data);
// Find the survey with the specified name
let survey = null;
for (const key in existing_data) {
if (existing_data[key].testName === survey_name) {
survey = existing_data[key];
break;
}
}
if (!survey) {
return res.status(404).json({ error: `Survey ${survey_name} not found` });
}
// Add the new question to the survey's Questions array
question_data.id = survey.Questions.length + 1; // Assign a new ID for the question
survey.Questions.push(question_data);
// Write the updated JSON data back to the file
fs.writeFile(filePath, JSON.stringify(existing_data, null, 4), (err) => {
if (err) {
return res.status(500).json({ message: 'Error writing to JSON file' });
}
return res.status(200).json({ message: 'Question added successfully' });
});
});
});
app.post('/add_answer', (req, res) => {
// Get the JSON data from the request
const json_data = req.body;
// Get the survey name, question ID, and answer data from the JSON data
const survey_name = json_data.survey_name;
const question_id = json_data.question_id;
const answer_data = json_data.answer_data;
// Read the existing JSON file
const filePath = './src/surveyAll.json';
fs.readFile(filePath, 'utf8', (err, data) => {
if (err) {
return res.status(500).json({ message: 'Error reading JSON file' });
}
let existing_data = JSON.parse(data);
// Find the survey with the specified name
let survey = null;
for (const key in existing_data) {
if (existing_data[key].testName === survey_name) {
survey = existing_data[key];
break;
}
}
if (!survey) {
return res.status(404).json({ error: `Survey ${survey_name} not found` });
}
// Find the question with the specified ID
let question = null;
for (const q of survey.Questions || []) {
if (q.id === question_id) {
question = q;
break;
}
}
if (!question) {
return res.status(404).json({ error: `Question with ID ${question_id} not found in the survey` });
}
// Add the new answers to the question's answers array
answer_data.forEach((answer, index) => {
answer.option = String.fromCharCode(97 + question.answers.length + index);
question.answers.push(answer);
});
// Write the updated JSON data back to the file
fs.writeFile(filePath, JSON.stringify(existing_data, null, 4), (err) => {
if (err) {
return res.status(500).json({ message: 'Error writing to JSON file' });
}
return res.status(200).json({ message: 'Answers added successfully' });
});
});
});
app.post('/add_suggestion', (req, res) => {
// Get the JSON data from the request
const json_data = req.body;
// Get the survey name, suggestion range, and suggestion message from the JSON data
const survey_name = json_data.survey_name;
const suggestion_range = json_data.range;
const suggestion_message = json_data.message;
// Read the existing JSON file
const filePath = './src/surveyAll.json';
fs.readFile(filePath, 'utf8', (err, data) => {
if (err) {
return res.status(500).json({ message: 'Error reading JSON file' });
}
let existing_data = JSON.parse(data);
// Find the survey with the specified name
let survey = null;
for (const key in existing_data) {
if (existing_data[key].testName === survey_name) {
survey = existing_data[key];
break;
}
}
if (!survey) {
return res.status(404).json({ error: `Survey ${survey_name} not found` });
}
// Check if the Suggestions key exists in the survey, if not, create it
if (!survey.Suggestions) {
survey.Suggestions = {};
}
// Add the new suggestion to the survey's Suggestions dictionary
survey.Suggestions[suggestion_range] = suggestion_message;
// Write the updated JSON data back to the file
fs.writeFile(filePath, JSON.stringify(existing_data, null, 4), (err) => {
if (err) {
return res.status(500).json({ message: 'Error writing to JSON file' });
}
return res.status(200).json({ message: 'Suggestion added successfully' });
});
});
});
const port = 5000; // Choose a port number
app.listen(port, () => {
console.log(`Server is running on port ${port}`);
});