feat: Paginate data

Data obtained at get all workouts, records and members can be limited
and divided by pages.

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "crossfit-wod-api",
-	"version": "1.3.0",
+	"version": "1.4.0",
 	"description": "Crossfit Work Of Day REST API from freeCodeCamp",
 	"main": "index.js",
 	"scripts": {

src/controllers/memberController.js

@@ -1,9 +1,12 @@
 const memberService = require("../services/memberService");
 
 const getAllMembers = (req, res) => {
-	const { name, gender } = req.query;
+	const { name, gender, lenght, page } = req.query;
 	try {
-		const allMembers = memberService.getAllMembers({ name, gender });
+		const allMembers = memberService.getAllMembers(
+			{ name, gender },
+			{ lenght, page }
+		);
 		res.send({ status: "OK", data: allMembers });
 	} catch (error) {
 		res

src/controllers/recordController.js

@@ -41,8 +41,10 @@ const getRecordsForMember = (req, res) => {
 };
 
 const getAllRecords = (req, res) => {
+	const { length, page } = req.query;
+
 	try {
-		const allRecords = recordService.getAllRecords();
+		const allRecords = recordService.getAllRecords({ length, page });
 		res.send({ status: "OK", data: allRecords });
 	} catch (error) {
 		res

src/controllers/workoutController.js

@@ -1,9 +1,12 @@
 const workoutService = require("../services/workoutService");
 
 const getAllWorkouts = (req, res) => {
-	const { mode, equipment } = req.query;
+	const { mode, equipment, length, page } = req.query;
 	try {
-		const allWorkouts = workoutService.getAllWorkouts({ mode, equipment });
+		const allWorkouts = workoutService.getAllWorkouts(
+			{ mode, equipment },
+			{ length, page }
+		);
 		res.send({ status: "OK", data: allWorkouts });
 	} catch (error) {
 		res

src/database/Member.js

@@ -1,10 +1,11 @@
 const DB = require("./db.json");
 
-const { saveToDatabase, getCurrentDateTime } = require("./utils");
+const { saveToDatabase, getCurrentDateTime, getPage } = require("./utils");
 
-const getAllMembers = (filterParams) => {
+const getAllMembers = (filterParams, paginationParams) => {
 	try {
 		let members = DB.members;
+
 		if (filterParams.name)
 			members = members.filter((member) =>
 				member.name.toLowerCase().includes(filterParams.name)
@@ -13,6 +14,8 @@ const getAllMembers = (filterParams) => {
 			members = members.filter(
 				(member) => member.gender === filterParams.gender
 			);
+		members = getPage(members, paginationParams.page, paginationParams.length);
+
 		return members;
 	} catch (error) {
 		throw { status: 500, message: error };

src/database/Record.js

@@ -1,6 +1,6 @@
 const DB = require("./db.json");
 
-const { saveToDatabase, getCurrentDateTime } = require("./utils");
+const { saveToDatabase, getCurrentDateTime, getPage } = require("./utils");
 
 const getRecordsForWorkout = (workoutId) => {
 	try {
@@ -30,9 +30,14 @@ const getRecordsForMember = (memberId) => {
 	}
 };
 
-const getAllRecords = () => {
+const getAllRecords = (paginationParams) => {
 	try {
-		return DB.records;
+		let records = getPage(
+			DB.records,
+			paginationParams.page,
+			paginationParams.length
+		);
+		return records;
 	} catch (error) {
 		throw { status: 500, message: error };
 	}

src/database/Workout.js

@@ -1,9 +1,10 @@
 const DB = require("./db.json");
-const { saveToDatabase, getCurrentDateTime } = require("./utils");
+const { saveToDatabase, getCurrentDateTime, getPage } = require("./utils");
 
-const getAllWorkouts = (filterParams) => {
+const getAllWorkouts = (filterParams, paginationParams) => {
 	try {
 		let workouts = DB.workouts;
+
 		if (filterParams.mode)
 			workouts = workouts.filter((workout) =>
 				workout.mode.toLowerCase().includes(filterParams.mode)
@@ -12,6 +13,12 @@ const getAllWorkouts = (filterParams) => {
 			workouts = workouts.filter((workout) =>
 				workout.equipment.includes(filterParams.equipment)
 			);
+		workouts = getPage(
+			workouts,
+			paginationParams.page,
+			paginationParams.length
+		);
+
 		return workouts;
 	} catch (error) {
 		throw { status: 500, message: error };

src/database/utils.js

@@ -19,9 +19,18 @@ const comparePassword = (password, hashedPassword) => {
 	return hashPassword(password) === hashedPassword;
 };
 
+const getPage = (array = [], page = 1, length = 20) => {
+	page = parseInt(page);
+	length = parseInt(length);
+	const startIndex = (page - 1) * length;
+	const endIndex = page * length;
+	return array.slice(startIndex, endIndex);
+};
+
 module.exports = {
 	saveToDatabase,
 	getCurrentDateTime,
 	hashPassword,
 	comparePassword,
+	getPage,
 };

src/services/memberService.js

@@ -3,9 +3,9 @@ const crypto = require("node:crypto");
 const Member = require("../database/Member");
 const { getCurrentDateTime, hashPassword } = require("../database/utils");
 
-const getAllMembers = (filterParams) => {
+const getAllMembers = (filterParams, paginationParams) => {
 	try {
-		const allMembers = Member.getAllMembers(filterParams);
+		const allMembers = Member.getAllMembers(filterParams, paginationParams);
 		return allMembers;
 	} catch (error) {
 		throw error;

src/services/recordService.js

@@ -20,9 +20,9 @@ const getRecordsForMember = (memberId) => {
 	}
 };
 
-const getAllRecords = () => {
+const getAllRecords = (paginationParams) => {
 	try {
-		const allRecords = Record.getAllRecords();
+		const allRecords = Record.getAllRecords(paginationParams);
 		return allRecords;
 	} catch (error) {
 		throw error;

src/services/workoutService.js

@@ -3,9 +3,9 @@ const crypto = require("node:crypto");
 const Workout = require("../database/Workout");
 const { getCurrentDateTime } = require("../database/utils");
 
-const getAllWorkouts = (filterParams) => {
+const getAllWorkouts = (filterParams, paginationParams) => {
 	try {
-		const allWorkouts = Workout.getAllWorkouts(filterParams);
+		const allWorkouts = Workout.getAllWorkouts(filterParams, paginationParams);
 		return allWorkouts;
 	} catch (error) {
 		throw error;