diff --git a/New_APIs/LibraryApi/.gitignore b/New_APIs/LibraryApi/.gitignore new file mode 100644 index 0000000..b512c09 --- /dev/null +++ b/New_APIs/LibraryApi/.gitignore @@ -0,0 +1 @@ +node_modules \ No newline at end of file diff --git a/New_APIs/LibraryApi/Readme.md b/New_APIs/LibraryApi/Readme.md new file mode 100644 index 0000000..d1718d8 --- /dev/null +++ b/New_APIs/LibraryApi/Readme.md @@ -0,0 +1,26 @@ +# Description +It is a library API which can be use to manage library data and library management. + +# Installation +First of all clone the repository and navigate to this directory. Then run the following commands +``` +npm i +cd src +node index.js +``` + +# End Points +### GET /api/v1/books +Returns the list of all books present in the library +### POST /api/v1/books +Add books to the library and it takes body parameters +### GET /api/v1/borrowers +Returns the list of all borrowers and their details +### POST /api/v1/borrowers +Add a borrower with details +### GET /api/v1/return/:id +Deletes a borrowers record when he/she had returned it +### GET /api/v1/search +Searches for the given book in the library + +This can be use in real time also if we use Mongo DB \ No newline at end of file diff --git a/New_APIs/LibraryApi/package-lock.json b/New_APIs/LibraryApi/package-lock.json new file mode 100644 index 0000000..4c10641 --- /dev/null +++ b/New_APIs/LibraryApi/package-lock.json @@ -0,0 +1,694 @@ +{ + "name": "libraryapi", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "libraryapi", + "version": "1.0.0", + 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"index.js", + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1" + }, + "type": "module", + "keywords": [], + "author": "", + "license": "ISC", + "dependencies": { + "express": "^4.19.2" + } +} diff --git a/New_APIs/LibraryApi/src/index.js b/New_APIs/LibraryApi/src/index.js new file mode 100644 index 0000000..483ff8d --- /dev/null +++ b/New_APIs/LibraryApi/src/index.js @@ -0,0 +1,165 @@ +import express from "express" + +const PORT = 3000 +const app = express() + +let data = [ + { + id: 1, + name: 'Book1', + author: 'Author1', + publication: 'Pub1', + totalCount: 10, + availableCount: 6 + }, + { + id: 2, + name: 'Book2', + author: 'Author2', + publication: 'Pub2', + totalCount: 5, + availableCount: 1 + }, + { + id: 3, + name: 'Book3', + author: 'Author3', + publication: 'Pub3', + totalCount: 3, + availableCount: 3 + }, + { + id: 4, + name: 'Book4', + author: 'Author4', + publication: 'Pub4', + totalCount: 15, + availableCount: 10 + }, +] + +let borrowersData = [ + { + id: 1, + name: 'Md Rehan', + book: 2, + date: new Date() + }, + { + id: 2, + name: 'Khushee', + book: 4, + date: new Date() + }, + { + id: 3, + name: 'Om Kumar', + book: 3, + date: new Date() + }, +] + +app.use(express.json({ limit: '16kb' })) +app.use(express.urlencoded({ extended: true })) + +// Get All Books +app.get('/api/v1/books', (req, res) => { + res.status(200).json({ success: true, data }) +}) + +// Get All Borrowers +app.get('/api/v1/borrowers', (req, res) => { + res.status(200).json({ success: true, data: borrowersData }) +}) + +// Add Books +app.post('/api/v1/books', (req, res) => { + + try { + const { name, author, publication, totalCount } = req.body; + + if([name, author, publication, totalCount].some((val) => !val || val == '')) throw new Error("Some Fields Are Missing") + + data.push({ id: data.length + 1, name, author, publication, totalCount, availableCount: totalCount }) + + res.status(200).json({ success: true, message: 'Book Added Successfully' }) + } catch (err) { + res.status(400).json({ success: false, message: err.message }) + } + +}) + +// Add Borrower +app.post('/api/v1/borrowers', (req, res) => { + try { + + const { name, book } = req.body; + if( !name || !book ) throw new Error("No Name Or Book Given") + + let isAvailable = false + data.map((bk, index) => { + if(bk.name == book && bk.availableCount) { + data[index].availableCount--; + isAvailable = true + } + }) + + if(isAvailable) { + borrowersData.push({ id: borrowersData.length + 1, name, book, date: new Date() }) + return res.status(200).json({ success: true, message: 'Borrower Added Successfully' }) + } else { + throw new Error("No Book Found") + } + + } catch (err) { + res.status(400).json({ success: false, message: err.message }) + } +}) + +// Return Book +app.get('/api/v1/return/:id', (req, res) => { + + try { + const { id } = req.params; + if(!id) throw new Error("No ID") + + let isThere = false + let book; + borrowersData.map((bdata) => { + if(bdata.id == id) isThere = true, book = bdata.book + }) + + if(isThere) { + borrowersData = borrowersData.filter((bdata) => bdata.id != id) + data[book - 1].availableCount++; + res.status(200).json({ success: true, message: "Record Deleted Successfully" }) + } else { + throw new Error("No Record Found") + } + } catch (err) { + res.status(400).json({ success: false, message: err.message }) + } + +}) + +app.get('/api/v1/search', (req, res) => { + try { + const { bookName } = req.query + for(let bk of data) { + if(bk.name == bookName) { + if(bk.availableCount) { + return res.status(200).json({ success: true, message: "Yes, book is there and available" }) + } else { + return res.status(200).json({ success: true, message: "Yes, book is there but currently not available" }) + } + } + } + return res.status(200).json({ success: true, message: "Sorry, book is not there" }) + } catch (err) { + res.status(400).json({ success: false, message: err.message }) + } +}) + +app.listen(PORT, () => { + console.log(`Listening on http://localhost:3000`) +}) \ No newline at end of file