Retrieving metadata using breeze is taking too long

Using breeze in my MVC 4 application to fetch data from a remote SQL Server database with about 40 entities. Surprisingly, the loading of metadata is taking longer than expected, ranging between 14s and 35s even though the size is just around 600kb.

However, once the metadata is loaded, fetching entities seems to be much quicker. For instance, an entity of 2.5 Mb was fetched in just 2.5 seconds.

Here is an image showing the loading process.

I'm curious to know why the initial loading is slow and if there are any techniques I can use to speed up the process?

Answer №1

Instead of constantly requesting server metadata, I take a different approach. I efficiently extract the metadata from an EntityManager's metadata store and save it in a JavaScript file as a global variable. This file is then included with my other scripts on my index.html page. When my application launches, I load this variable into my manager's metadataStore.

As time goes on, I enhance my process by automatically regenerating the metadata when the server starts, serializing and storing it in browser local storage, and more. Understanding that metadata is simply a JavaScript object opens up endless possibilities for innovation and clever solutions.

Answer №2

To streamline the process of loading metadata without an additional network call to the server, embed it in your scripts and supply Breeze with it manually as recommended by @Ward.

Below is an example using TypeScript:

import { DataService, EntityManager, MetadataStore, NamingConvention } from "breeze-client";

        // Your metadata object
        const metadata: any = Metadata.value;

        // define the Breeze `DataService` for this app
        const dataService: DataService = new DataService({
            serviceName: "http://localhost:63000",
            hasServerMetadata: false  // avoid requesting metadata from the server
        });

        // create the metadataStore 
        const metadataStore: MetadataStore = new MetadataStore({
            namingConvention: NamingConvention.camelCase // utilize this convention if needed
        });

        // initialize it from the application's metadata variable
        metadataStore.importMetadata(metadata);

        const entityManagerConfig: EntityManagerOptions = {
            dataService: dataService,
            metadataStore: metadataStore
        };

        this.entityManager = new EntityManager(entityManagerConfig);

You now have an EntityManager instance configured with the metadata and prepared to handle queries confidently.

For further details, refer to the official documentation

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Acquire the Information from a Textarea That Has Been Edited by the User

My challenge lies in taking user-entered text from a content editable textarea and sending it via POST request, but the fields edited by the user are returning with an empty textContent. The code snippet below shows that each .entryRow (obj) contains multi ...

Enhance a React component by including additional properties when passing it into another component through props

I have a parent element with a dynamically changing height that I need to pass down to its child elements. To get and set the height of the parent element, I am utilizing a ref. The challenge lies in passing this height value from the parent component to ...

Error: JSON data couldn't be processed due to an unexpected end, resulting in a SyntaxError at JSON.parse()

I'm currently working on making an ajax call to an API, but I keep encountering an error whenever I try to make the call. I've been troubleshooting this for hours and I can't seem to figure out what the issue is. At one point, I even removed ...

Error discovered in Webpack syntax

I'm a newcomer to webpack and feeling lost on how to properly configure the settings. Here is my project structure: / -- /public -- /js -- app.js -- /css -- app.scss -- /node_modules -- /autoprefixer -- /babel-loader ...

Preventing the display of AngularJS HTML tags while the app is being loaded

I am new to AngularJS (using version 1.5.8) and I am currently following the tutorials provided on docs.angularjs.org/tutorial. Below is the HTML code snippet: <div class="jumbotron"> <h1>{{application_name | uppercase }}</h1> ...

What are the steps to run a webpack project without relying on webpack-dev-server?

I've been working on hosting my project on GitHub pages by creating a /doc file and placing all my HTML, CSS, and JS there. If you're interested, you can check out my project here: https://github.com/mattfrancis888/the_movie_db The only way I&a ...

Nextjs: Issues with Dropdown functionality when using group and group-focus with TailwindCSS

My goal is to make an array visible once a button is clicked. By default, the array should be invisible, similar to drop-down menus in menu bars. I am utilizing the group and group-focus classes. While the array disappears as expected, it does not reappear ...

I initially had ngRoute set up in my app, but decided to make the switch to ui-router. However, now it seems like

I currently have an application set up using express and angular. I decided to transition to ui-router in order to utilize multiple views, but it doesn't appear to be functioning as expected. app.js app.use(express.static(path.join(__dirname, ' ...

Click on an element that is nested within another element that can also be clicked on

I'm facing a challenge while attempting to create an accordion inside another accordion. The issue arises with the nested elements and their behavior upon clicking. Essentially, I have a parent div with the class .applicant, which expands on click by ...

Achieving different results by modifying an array within a forEach loop

I am currently working on a forEach() function that increments an array by one for each iteration. The problem I am facing is that whenever I try to display the value of the number variable in the browser's console, it only shows me the final state i ...

Troubleshooting 404 Error When Using Axios Put Request in Vue.js

I'm trying to update the status of an order using Axios and the Woocommerce REST API, but I keep getting a 404 error. Here's my first attempt: axios.put('https://staging/wp-json/wc/v3/orders/1977?consumer_key=123&consumer_secret=456&apos ...

Oh no! It seems like the build script is missing in the NPM

https://i.stack.imgur.com/el7zM.jpg npm ERR! missing script: build; I find it strange, what could be causing this issue? Any suggestions? I have included the fullstack error with the package.json. Please also review the build.sh code below. Fullstack err ...

Tips for fixing the TS2345 compilation error when working with React

Attempting to implement the setState method in React has resulted in a compile error. Any solutions to this issue would be greatly appreciated. Frontend: react/typescript articleApi.tsx import axios from 'axios'; import {Article} from '../ ...

Is it possible to exclusively target a child div using JavaScript in CSS, without affecting the parent div?

I'm in the process of developing a calendar feature where users can select a specific "day" element to access a dropdown menu for time selection. The functionality is working fine, but I've encountered an issue. When a user selects a time from th ...

What is the best way to display a Nested JSON structure without an object key?

Need help with extracting data from two different JSON structures. The first one is straightforward, but the second is nested in multiple arrays. How can I access the content? See below for the code snippets: // First JSON { "allSuSa": [ { ...

The latest version of Material UI icons caused compatibility issues with React-Select

I recently made the switch from using @material-ui/icons version 4.11.2 to @mui/material and @mui/icons-material version 5.2.3 Although material UI is not directly integrated with react-select, there seems to be some interaction happening. The transition ...

Creating vibrant squares using HTML and CSS

My objective is to incorporate 3 input options for selecting the color, size, and amount of cubes. The image below showcases my peer's final project, but unfortunately, he refused to share the code with me. We were given a basic template to begin with ...

What is the best way to choose a single li element?

I am working on creating a reservation system using HTML, CSS, and JS. I want to customize the color of the border for each list item (li). However, I want only one li to be selected at a time. When I click on a different li, it should remove the selection ...

What is the best way to update my component when the selected value is changed?

Currently, I am facing an issue with my map component. It plots polyline data based on the option selected from the select menu component. The problem arises when I change the value in the select menu and click the play button for the animation. Instead of ...

Exploring the Past: How the History API, Ajax Pages, and

I have a layout for my website that looks like this IMAGE I am experimenting with creating page transitions using ajax and the history API. CODE: history.pushState(null, null, "/members/" + dataLink + ".php" ); // update URL console. ...