created API For Aplication Absensi

app/helpers/responses.js

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+const bodyParser = require('body-parser');
+const express = require('express');
+const { getErrorMessage } = require('../constants/api_constans');
+
+const success = (res, data, msg, param = null) => {
+    var dataJson = data;
+    var data = {};
+    if (param != null) data[param] = dataJson;
+    else data = dataJson;
+
+    return res.status(200).json({
+        success: true,
+        message: msg,
+        data,
+    });
+};
+
+const failed = (res, errorCode, message = null) => {
+    const error = getErrorMessage(errorCode);
+
+    return res.status(error.httpCode).json({
+        success: false,
+        message: message || error.message,
+        error_code: errorCode,
+        data: null,
+    });
+};
+
+const pagination = (page, size) => {
+    let limit = null;
+    let offset = null;
+    
+    if(page == null) page = 1;
+    if(size == null) size = 10;
+
+    if (page != null) {
+        limit = size ? +size : 5;
+        offset = limit ? 0 + (page - 1) * limit : null;
+    }
+
+    return {
+        limit,
+        offset,
+    };
+}
+
+function paginationResponse(model, page, limit, dataKey, resource) {
+    const totalItem = model.count;
+    const currentPage = parseInt(page);
+    const totalPages = Math.ceil(totalItem / limit);
+
+    return {
+        [dataKey]: resource,
+        pagination: {
+            total_item: totalItem,
+            total_page: totalPages,
+            current_page: currentPage,
+            limit: parseInt(limit),
+        },
+    };
+}
+
+const error = (res, errorCode, message = null) => {
+    const error = getErrorMessage(errorCode);
+
+    return res.status(error.httpCode).json({
+        success: false,
+        message: message || error.message,
+        error_code: errorCode,
+        data: null,
+    });
+};
+
+module.exports = {
+    success,
+    pagination,
+    paginationResponse,
+    failed,
+    error,
+};