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Todo List Backend Using Rest APIs #1

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Todo List Backend Using Rest APIs #1

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Todo List Backend Using Rest APIs
ayushanand16 Aug 6, 2022
11658f3
Improve Status Codes and restrict collaborators from editing or delet…
ayushanand16 Aug 7, 2022
e4b4de7
Modify Signup response
ayushanand16 Aug 7, 2022
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224 changes: 223 additions & 1 deletion controllers/todo.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
const { ToDo, Token } = require("../models");
const { ToDo, Token, User } = require("../models");

// All the given method require token.
// So be sure to check for it before doing any stuff
Expand All @@ -7,34 +7,256 @@ const { ToDo, Token } = require("../models");
const getAllToDo = async (req, res) => {
// Get the token in header.
// Use the token to get all the ToDo's of a user
ToDo.find({ $or : [{createdBy: req.user.id}, {collab: req.user.id}]},
(err,foundTodos)=>{
if(!err){
if(foundTodos){
console.log(req.user.id);
const TodosCreated = foundTodos.filter((todo)=>todo.createdBy==req.user.id);
const TodosCollabed = foundTodos.filter((todo)=>todo.createdBy!=req.user.id);
const users = TodosCollabed.map((todo)=>todo.createdBy);
console.log(users);
User.find({_id: {$in: users}},(error,foundUsers)=>{
if(!error){
if(foundUsers)
res.status(200).json({
"Todos Created: ": TodosCreated.map((todo)=>({
id: todo.id,
title: todo.title,
})),
"Todos Collaborated: ": TodosCollabed.map((todo)=>({
id: todo.id,
title: todo.title,
createdBy: foundUsers.find(foundUser=>todo.createdBy==foundUser.id).username
}))
});else{
return res.status(404).send("User Not found");
}
}else{
return res.status(500).send(error);
}

})

}else{
return res.status(404).send("Todo Not found");
}
}else{
return res.status(500).send(err);
}
})
};

const createToDo = async (req, res) => {
// Check for the token and create a todo
// or throw error correspondingly
const title = req.body.title;
const todo = new ToDo({
title: title,
createdBy: req.user.id,
collab: []
})
console.log(todo);
todo.save()
.then(res.status(200).json({
title: title,
createdBy: req.user.username
}))
.catch(err=>{if(err)res.status(500).send(err)});
};

const getParticularToDo = async (req, res) => {
// Get the Todo of the logged in user with given id.
const TodoID = req.params.id;
ToDo.findById({_id: req.params.id},(err,foundTodo)=>{
if(!err){
if(foundTodo){
User.find({_id: {$in: foundTodo.collab}},(err,foundUsers)=>{
if(!err){
if(foundUsers)
res.status(200).json({
title: foundTodo.title,
createdBy: foundTodo.createdBy,
collaborators: foundUsers.map((user)=>user.username)
})
}else{
console.log(err);
}})}else{
return res.status(404).send("Todo Not found");
}
}else{
return res.status(500).send(err);
}
})
};

const editToDo = async (req, res) => {
// Change the title of the Todo with given id, and get the new title as response.
const title=req.body.title;
ToDo.findById(req.params.id,(err,foundToDo)=>{
if(!err){
if(foundToDo){
console.log(foundToDo);
if(foundToDo.createdBy!=req.user.id){
return res.status(401).send("Unauthorized To Edit this Todo");
}else{
foundToDo.title = title;
foundToDo.save().then(res.status(200).json({
title : foundToDo.title,
createdBy : req.user.username,
collaborators: foundToDo.collaborator
}))
}
}else{
return res.status(404).send("Todo Not Found");
}
}else{
return res.status(500).send(err);
}
})
};

const editToDoPatch = async (req, res) => {
// Change the title of the Todo with given id, and get the new title as response
editToDo();
};

const deleteToDo = async (req, res) => {
// Delete the todo with given id
const ToDoId = req.params.id;

ToDo.findById(ToDoId,(err,foundTodo)=>{
if(!err){
if(foundTodo){
if(foundTodo.createdBy!=req.user.id){
return res.status(401).send("Not authorized to delete this todo");
}else{
ToDo.findByIdAndDelete(ToDoId, (err,foundToDo)=>{
if(err){
res.status(500).send(err);
}else{
res.status(200).send("Todo Deleted Successfully");
}
});
}
}else{
return res.status(404).send("Todo Not Found");
}
}else{
return res.status(500).send(err);
}
})




};

const addCollaborator = async (req, res) => {
const ToDoId = req.params.id;
const collaborator = req.body.collaborator;
console.log(collaborator);
User.findOne({username:collaborator},(err,userFound)=>{
if(!err){
if(userFound){
console.log(userFound);
if(userFound.id==req.user.id){
return res.status(400).send("Todo creater cannot be Todo collaborator");
}
ToDo.findById(ToDoId,(error,foundTodo)=>{
if(!error){
if(foundTodo){
if(foundTodo.createdBy!=req.user.id){
return res.status(401).send("You can't add collaborators to this todo");
}
console.log(userFound.id)
if(foundTodo.collab && foundTodo.collab.includes(userFound.id)){
return res.status(400).send("Given user is already a collaborator");
}
if(foundTodo.collab){
foundTodo.collab.push(userFound.id);
}else{
foundTodo.collab = [userFound.id];
}

foundTodo.save().then(res.status(200).json({
id: foundTodo.id,
title: foundTodo.title,
createdBy: req.user.id,
collaboratorAdded : userFound.username
})).catch(err=>res.status(500).send(err));
}else{
return res.status(404).send("Todo Not Found");
}
}else{
res.status(500).send(error);
}
})
}else{
return res.status(404).send("User Not Found");
}
}else{
return res.status(500).send(err);
}

})
}

const removeCollaborator = async (req,res) => {
const ToDoId = req.params.id;
const collaborator = req.body.collaborator;
console.log(collaborator);
User.findOne({username:collaborator},(err,userFound)=>{
if(!err){
if(userFound){
console.log(userFound);
if(userFound.id==req.user.id){
return res.status(400).send("Todo creater was not a Todo collaborator");
}
ToDo.findById(ToDoId,(error,foundTodo)=>{
if(!error){
if(foundTodo){
console.log(userFound.id)
if(foundTodo.createdBy!=req.user.id){
return res.status(401).send("You can't remove collaborators to this todo");
}
if(foundTodo.collab && foundTodo.collab.includes(userFound.id)){
foundTodo.collab.splice(foundTodo.collab.findIndex((user)=>{user==userFound.id}));
}else{
return res.status(404).send("No such collaborator");
}

foundTodo.save().then(res.status(200).json({
id: foundTodo.id,
title: foundTodo.title,
createdBy: req.user.id,
collaboratorRemoved : userFound.username
})).catch(err=>res.status(500).send(err));
}else{
return res.status(404).send("Todo Not Found");
}
}else{
res.status(500).send(error);
}
})
}else{
return res.status(404).send("User Not Found");
}
}else{
return res.status(500).send(err);
}

})

}

module.exports = {
createToDo,
deleteToDo,
editToDo,
editToDoPatch,
getAllToDo,
getParticularToDo,
addCollaborator,
removeCollaborator
};
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