Get the Items inside the Folder in document Library in SharePoint 2013 using REST API

Hi All,

In a following post we will see about how to get the documents/Items inside the Folder in SharePoint document library.

Below code is developed in SharePoint hosted apps.In a below Example ,I get the Items from "Shared Documents"(Library Name) and "Folder1" is my folder inside the document Library.

'use strict';

var SPAppWebUrl;

var spHostUrl;

(function () {

    // This code runs when the DOM is ready and creates a context object which is

    // needed to use the SharePoint object model

    $(document).ready(function () {

        spHostUrl = decodeURIComponent(getQueryStringParameter('SPHostUrl'));

        SPAppWebUrl = decodeURIComponent(getQueryStringParameter("SPAppWebUrl"));

        SP.SOD.executeFunc("sp.js", "SP.ClientContext", function () {

            SP.SOD.executeFunc("sp.runtime.js", "SP.ClientContext", function () {

                $.getScript(spHostUrl + "/_Layouts/15/SP.RequestExecutor.js", function (data) {

                    MainFunction();

                });

            });

        });

    });

    function MainFunction() {

        $('#btnGet').on('click', function () {

            getFolderCount()

        });

    }

    function getFolderCount() {

        var url = SPAppWebUrl + "/_api/SP.AppContextSite(@target)" +

        "/web/getfolderbyserverrelativeurl('/Shared Documents/Folder1')/files?" +

        "@target='" + spHostUrl + "'";

        var executor = new SP.RequestExecutor(SPAppWebUrl);

        executor.executeAsync({

            url: url,

            method: "GET",

            headers: { "Accept": "application/json;odata=verbose" }, // return data format

            success: onQuerySuccess,

            error: onQueryError

        });

        function onQuerySuccess(data) {

            var jsonObject = JSON.parse(data.body);

            var results = jsonObject.d.results;

//count inside the folder

            alert(results.length);

            if (results.length !== null) {

                //Looping Jason data and get the documents

                $.each(results, function (index) {

                    alert(results[index].Name);

                    alert(results[index].ServerRelativeUrl);

                });

            }

        }

        function onQueryError(error) {

            alert("Error: " + error.statusText);

        }

    }

    function getQueryStringParameter(urlParameterKey) {

        var params = document.URL.split('?')[1].split('&');

        var strParams = '';

        for (var i = 0; i < params.length; i = i + 1) {

            var singleParam = params[i].split('=');

            if (singleParam[0] == urlParameterKey)

                return decodeURIComponent(singleParam[1]);

        }

    }

})();

Thanks.

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