get data from indexeddb

indexeddb-fetch.js

 // IndexedDB
    var indexedDB = window.indexedDB || window.webkitIndexedDB || window.mozIndexedDB || window.OIndexedDB || window.msIndexedDB,
        IDBTransaction = window.IDBTransaction || window.webkitIDBTransaction || window.OIDBTransaction || window.msIDBTransaction,
        dbVersion = 1.0;

    // Create/open database
    var request = indexedDB.open("local", dbVersion),
        db,
        createObjectStore = function (dataBase) {
            // Create an objectStore
            console.log("Creating objectStore")
            dataBase.createObjectStore("files");
        },

        getFile = function () {
            // Create XHR
            var xhr = new XMLHttpRequest()

            // Open a transaction to the database
            var readWriteMode = typeof IDBTransaction.READ_WRITE == "undefined" ? "readwrite" : IDBTransaction.READ_WRITE;
            var transaction = db.transaction(["files"], readWriteMode);

           
            // Retrieve the file that was just stored
            transaction.objectStore("files").get("5F1682A4-1FB2-439C-9EE9-654E137BEC0E").onsuccess = function (event) {
                        var imgFile = event.target.result;
                        console.log("Got files!" + imgFile);
                        console.log(imgFile);

                // // Get window.URL object
                // var URL = window.URL || window.webkitURL;

                // // Create and revoke ObjectURL
                // var imgURL = URL.createObjectURL(imgFile);

                // // Set img src to ObjectURL
                // var imgElephant = document.getElementById("elephant");
                // imgElephant.setAttribute("src", imgURL);

                // // Revoking ObjectURL
                // imgElephant.onload = function() {
                //     window.URL.revokeObjectURL(this.src);
                // }
            };
        };


        

    request.onerror = function (event) {
        console.log("Error creating/accessing IndexedDB database");
    };

    request.onsuccess = function (event) {
        console.log("Success creating/accessing IndexedDB database");
        db = request.result;

        db.onerror = function (event) {
            console.log("Error creating/accessing IndexedDB database");
        };
        
        // Interim solution for Google Chrome to create an objectStore. Will be deprecated
        if (db.setVersion) {
            if (db.version != dbVersion) {
                var setVersion = db.setVersion(dbVersion);
                setVersion.onsuccess = function () {
                    createObjectStore(db);
                    getFile();
                };
            }
            else {
                getFile();
            }
        }
        else {
            getFile();
        }
    }
    
    // For future use. Currently only in latest Firefox versions
    request.onupgradeneeded = function (event) {
        createObjectStore(event.target.result);
    };