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thatbackendguythatbackendguy
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CRUD Blog
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6 files changed

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-35
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‎controller/blogCtrl.js

Lines changed: 172 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2,6 +2,8 @@ const Blog = require("../models/blogModel");
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const User = require("../models/userModel");
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const asyncHandler = require("express-async-handler");
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const validateMongoDBID = require("../utils/validateMongoDB");
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const cloudinaryUploadImg = require("../utils/cloudinary");
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const fs = require("fs");
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const createBlog = asyncHandler(async (req, res) => {
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try {
@@ -25,7 +27,177 @@ const updateBlog = asyncHandler(async (req, res) => {
2527
}
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});
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const getBlog = asyncHandler(async (req, res) => {
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const { id } = req.params;
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validateMongoDBID(id);
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try {
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const getBlog = await Blog.findById(id)
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.populate("likes")
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.populate("dislikes");
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const updateViews = await Blog.findByIdAndUpdate(
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id,
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{
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$inc: { numViews: 1 },
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},
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{ new: true }
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);
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res.json(getBlog);
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} catch (error) {
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throw new Error(error);
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}
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});
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const getAllBlogs = asyncHandler(async (req, res) => {
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try {
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const getBlogs = await Blog.find();
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res.json(getBlogs);
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} catch (error) {
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throw new Error(error);
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}
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});
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const deleteBlog = asyncHandler(async (req, res) => {
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const { id } = req.params;
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validateMongoDBID(id);
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try {
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const deletedBlog = await Blog.findByIdAndDelete(id);
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res.json(deletedBlog);
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} catch (error) {
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throw new Error(error);
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}
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});
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const liketheBlog = asyncHandler(async (req, res) => {
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const { blogId } = req.body;
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validateMongoDBID(blogId);
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// Find the blog which you want to be liked
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const blog = await Blog.findById(blogId);
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// find the login user
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const loginUserId = req?.user?._id;
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// find if the user has liked the blog
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const isLiked = blog?.isLiked;
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// find if the user has disliked the blog
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const alreadyDisliked = blog?.dislikes?.find(
81+
(userId) => userId?.toString() === loginUserId?.toString()
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);
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if (alreadyDisliked) {
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const blog = await Blog.findByIdAndUpdate(
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blogId,
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{
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$pull: { dislikes: loginUserId },
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isDisliked: false,
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},
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{ new: true }
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);
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res.json(blog);
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}
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if (isLiked) {
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const blog = await Blog.findByIdAndUpdate(
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blogId,
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{
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$pull: { likes: loginUserId },
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isLiked: false,
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},
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{ new: true }
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);
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res.json(blog);
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} else {
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const blog = await Blog.findByIdAndUpdate(
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blogId,
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{
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$push: { likes: loginUserId },
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isLiked: true,
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},
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{ new: true }
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);
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res.json(blog);
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}
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});
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const disliketheBlog = asyncHandler(async (req, res) => {
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const { blogId } = req.body;
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validateMongoDBID(blogId);
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// Find the blog which you want to be liked
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const blog = await Blog.findById(blogId);
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// find the login user
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const loginUserId = req?.user?._id;
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// find if the user has liked the blog
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const isDisLiked = blog?.isDisliked;
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// find if the user has disliked the blog
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const alreadyLiked = blog?.likes?.find(
127+
(userId) => userId?.toString() === loginUserId?.toString()
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);
129+
if (alreadyLiked) {
130+
const blog = await Blog.findByIdAndUpdate(
131+
blogId,
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{
133+
$pull: { likes: loginUserId },
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isLiked: false,
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},
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{ new: true }
137+
);
138+
res.json(blog);
139+
}
140+
if (isDisLiked) {
141+
const blog = await Blog.findByIdAndUpdate(
142+
blogId,
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{
144+
$pull: { dislikes: loginUserId },
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isDisliked: false,
146+
},
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{ new: true }
148+
);
149+
res.json(blog);
150+
} else {
151+
const blog = await Blog.findByIdAndUpdate(
152+
blogId,
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{
154+
$push: { dislikes: loginUserId },
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isDisliked: true,
156+
},
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{ new: true }
158+
);
159+
res.json(blog);
160+
}
161+
});
162+
163+
const uploadImages = asyncHandler(async (req, res) => {
164+
const { id } = req.params;
165+
validateMongoDBID(id);
166+
try {
167+
const uploader = (path) => cloudinaryUploadImg(path, "images");
168+
const urls = [];
169+
const files = req.files;
170+
for (const file of files) {
171+
const { path } = file;
172+
const newpath = await uploader(path);
173+
console.log(newpath);
174+
urls.push(newpath);
175+
fs.unlinkSync(path);
176+
}
177+
const findBlog = await Blog.findByIdAndUpdate(
178+
id,
179+
{
180+
images: urls.map((file) => {
181+
return file;
182+
}),
183+
},
184+
{
185+
new: true,
186+
}
187+
);
188+
res.json(findBlog);
189+
} catch (error) {
190+
throw new Error(error);
191+
}
192+
});
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28194
module.exports = {
29195
createBlog,
30196
updateBlog,
197+
getBlog,
198+
getAllBlogs,
199+
deleteBlog,
200+
liketheBlog,
201+
disliketheBlog,
202+
uploadImages,
31203
};

‎middlewares/uploadImage.js

Lines changed: 58 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,58 @@
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const multer = require("multer");
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const sharp = require("sharp");
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const path = require("path");
4+
const fs = require("fs");
5+
const storage = multer.diskStorage({
6+
destination: function (req, file, cb) {
7+
cb(null, path.join(__dirname, "../public/images/"));
8+
},
9+
filename: function (req, file, cb) {
10+
const uniquesuffix = Date.now() + "-" + Math.round(Math.random() * 1e9);
11+
cb(null, file.fieldname + "-" + uniquesuffix + ".jpeg");
12+
},
13+
});
14+
15+
const multerFilter = (req, file, cb) => {
16+
if (file.mimetype.startsWith("image")) {
17+
cb(null, true);
18+
} else {
19+
cb({ message: "Unsupported file format" }, false);
20+
}
21+
};
22+
23+
const uploadPhoto = multer({
24+
storage: storage,
25+
fileFilter: multerFilter,
26+
limits: { fileSize: 1000000 },
27+
});
28+
29+
const productImgResize = async (req, res, next) => {
30+
if (!req.files) return next();
31+
await Promise.all(
32+
req.files.map(async (file) => {
33+
await sharp(file.path)
34+
.resize(300, 300)
35+
.toFormat("jpeg")
36+
.jpeg({ quality: 90 })
37+
.toFile(`public/images/products/${file.filename}`);
38+
fs.unlinkSync(`public/images/products/${file.filename}`);
39+
})
40+
);
41+
next();
42+
};
43+
44+
const blogImgResize = async (req, res, next) => {
45+
if (!req.files) return next();
46+
await Promise.all(
47+
req.files.map(async (file) => {
48+
await sharp(file.path)
49+
.resize(300, 300)
50+
.toFormat("jpeg")
51+
.jpeg({ quality: 90 })
52+
.toFile(`public/images/blogs/${file.filename}`);
53+
fs.unlinkSync(`public/images/blogs/${file.filename}`);
54+
})
55+
);
56+
next();
57+
};
58+
module.exports = { uploadPhoto, productImgResize, blogImgResize };

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