What is cors in node jsdela

Prosimo, vpišite se ali se prijavite za več podrobnosti.

I'm looking for a senior HTML/CSS/JS / React.js developer to help with creating and editing web page (landing pages, admin page, blog page ) This role will be primarily focused on weekends, so perfect for someone looking to supplement their weekday work. Key Responsibilities: - Create new landing pages - Edit existing landing pages Ideal Skills and Experience: - Senior level expertise in HTML, CSS, and JS - Prior experience with landing page development - Weekend availability I can hire you at 4$ / hours. If you're free to start immediately, please reach out. Thank you.

We are seeking a skilled developer with expertise in blockchain development to build a high-performance arbitrage bot. The bot should operate within decentralized exchanges (DEXes) on the Binance Smart Chain (BSC) network. Key Requirements 1. DEX Integration: • The bot must support any DEXes on BSC. • It should work with all trading pairs available. 2. Arbitrage Features: • The bot must use both own funds and flash loans from AAVE to maximize arbitrage opportunities. • A minimum of 1,000,000 arbitrage opportunities per day should be identified and exploited. 3. Smart Contracts: • All necessary smart contracts for the bot’s operation must be developed and deployed as part of this project. 4. Data Integration: • The bot will be integrated...

Prosimo, vpišite se ali se prijavite za več podrobnosti.

I am looking for a professional with experience in PHP, HTML, Js and Mysql for a web-based MVC project. The project is to develop an inventory system Key functionalities include: - User registration screen: User must be able to enter their full name, username and password. - Login: Allows users to enter their username and password. - User permissions - User authentication - Alerts and notifications section indicating when products are about to run out and login - Quotations - Add customers - Add suppliers - Make sales - Create reports - Create sales tickets - Dashboard Candidates must have substantial experience in MVC architecture and the mentioned technologies. Due by 06 January 2025

...a script that is causing performance issues. The primary purpose of this project is to identify and fix bugs that are affecting the script's efficiency. Key Areas of Concern: - Loading Data: The script seems to struggle with data loading, which might be causing slowdowns. - User Interactions: There are noticeable lags during user interactions, indicating potential issues in this area. - Rendering Components: Performance dips are also apparent when rendering components. Ideal Skills: - Proficiency in JavaScript and experience with script debugging and reverse engineering. - Strong analytical skills to identify performance bottlenecks. - Ability to implement effective solutions to improve script performance. Experience with optimizing scripts for enhan...

Title: Freelance Developer Needed for Stripe Integration with 3D Secure in Project Description: We are looking for a freelance developer experienced in to integrate a payment system with support for 3D Secure (3DS) into our Pre Check-in platform for vacation rentals. The main goals are to securely collect user information and process payments in compliance with current standards. The project will be deployed on Vercel. We currently use native components but are open to implementing React if needed for an efficient Stripe integration using libraries like @stripe/react-stripe-js. Responsibilities: • Set up and deploy Stripe’s Payment Intents API in the backend using Next.js. • Build a secure payment form on the fro...

...SIM7080 Integration Hello I am looking for a developer to create a complete firmware solution based on the following hardware and requirements: Hardware: • ESP32-C3 • SIM7080 Module • Motor Controller • Two Limit Switches System Requirements: 1. BLE Mesh Implementation: • Develop a BLE Mesh system with client-server architecture. • Each server node must function as a relay. 2. Command Flow: • I want to send a command to the client node via the SIM7080 module. • The client should broadcast the command to all server nodes. • Each server will relay the command further until the entire mesh network has received it. • Once all servers confirm receipt of the command, I should receive a confirmation on my phone via...

He is payment for 2 task

my website is if u are interested check the photos to see the current website speed and tell me what best result u can get and the time u will spend on the project lmk what best u can do to improve load time and make website faster on mobile and desktop Desktop and Mobile Optimization: Ensure fast load times and smooth navigation across all devices. Code and Theme Optimization: Optimize the existing Shopify theme, minimize unnecessary code, and implement best practices for speed. Image and Media Compression: Efficiently compress images and media files without compromising quality. App and Plugin Audit: Identify and remove any unnecessary apps or plugins affecting performance. Performance

I'm looking for a skilled professional to set up the web version of my application, which is built with Next JS v14.0.3. The ideal freelancer should have: - Extensive experience with Next JS and its latest version - Strong skills in web application development - Familiarity with setting up user interactions and third-party integrations. Please note that detailed specifics about the application's purpose and integrations will be provided after initial contact.

I need to fix aws issue on nodejs

I'm...create a Content Management System (CMS) using React, Node, and MySQL. The system needs to support user authentication, content editing and publishing, as well as media management. Key Requirements: - Implement a CMS that is user-friendly and efficient - Include robust user authentication to secure the platform - Develop features for content editing and publishing - Incorporate media management capabilities User Roles: The system should support three specific user roles: Admin, Editor, and Viewer. Each role should have appropriate permissions and access levels. Ideal Skills: - Proficient in React, Node, and MySQL - Prior experience in developing a CMS - Strong understanding of implementing user roles and permissions - Expertise in c...

Hello, I look for a marketing strategist to help me launch a business. The contest's purpose is to select who will be the person to accompany me in this adventure. The single deliverable of this contest is a Word document, containing: - Branding: What feelings and associations? Why? + some ideas of name, slogan, logo (no image require, just description), colours, serving this purpose. - Product: What features should the product include? What should the user journey be (in-Word high-level commentary of the Figma mockup? Why? + Some ideas of features like ability to compare your tariff to other users's. - Promotion: What marketing channels to use? Why? - Pricing: How should the service be priced? Why? Below a description ...

...different things to happen (by using data from the Form): - new BOX to be auto-created (for a typical listing page) - new PAGE to be auto-created (data from the Form to be properly inserted in a prepared default template page and page gets published) - new PIC to be auto-created (data from the Form to be inserted on a template pic background, to make a personalized pic) - some data from the form to be inserted in a table on local listing page , Node (Express), Postgresql. Frontend is done, need automation, APIs, databases, everything to work properly and smoothly. This project is meant to be done in about 5 days, but we'll make it 10 days for your convenience (meaning 10 calendar days as the whole world understands, not some other ...

...assist in creating a secure and scalable crypto wallet application. This project involves the creation of smart contracts, integration with various blockchain networks, and the development of features for sending, receiving, and managing crypto tokens across multiple chains. Key Responsibilities: - Design and develop a secure crypto wallet. - Create and implement smart contracts. - Integrate with various blockchain networks. - Develop features for sending, receiving, and managing crypto tokens. - Ensure the application supports multiple blockchain networks. Ideal Skills and Experience: - Proficiency in Solidity, Web3.js, and blockchain architecture. - Extensive experience in developing crypto wallets. - Prior involvement in DeFi or NFT projects is...

I'm looking for a WordPress developer who can build a single page website for me based on the provided Figma design. The design link is: Key Requirements: - No animations are required for this project. - The page should be built with high fidelity to the Figma design. - Excellent attention to detail and a strong understanding of WordPress is essential. - Prior experience with Figma to WordPress conversions is a plus. Please note that this is a straightforward single page site with no complex interactive elements needed. However, if you have suggestions for enhancements or improvements, I am open to discussing them.

1. preferably React.js 2. excellent understanding and implementation of security techniques for variables and API interaction with variables. 3. have a good understanding of variable state management and React structures. 4. know how to manage cache and optimize SEO. Must be able to implement: 1. User Auth related...of payment related, and Navigation processing should not cause bugs/abuse due to lack of data and status management. ** We do not recommend new developers who do not understand these fundamentals, or who do not have experience and want to gain experience. (You should not use low-level libraries like jquery; an understanding of NVM and REACT-level js is basic). The Design Link:

I'm in need of a Google Analytics professional to assist with fixing issues, configuring my account structure, setting up event tracking, and establishing goal and conversion tracking. Right Node The Tracking Code Have been Installed by every Way, site kit and plugin , header insertion, but still its not working. so I need someone who can fix this. Key Requirements: - Troubleshoot existing Google Analytics issues, particularly incorrect data reporting - Create a structured and organized Google Analytics account - Set up event tracking to monitor specific interactions - Establish goal and conversion tracking to measure performance Ideal Skills: - Extensive experience with Google Analytics - Proficient in troubleshooting and data analysis - Skilled in acco...

I have completed the design for Real estate plot landing page design on Figma here is the link:

I have HTML, CSS & Javascript files for my website. There are 5 HTML files, 1 CSS file and 1 Javascript file. Need someone to optimize the code for mobile devices as it only works for laptops and PCs right now. The entire website needs attention for mobile optimization, inclu...optimization, including: - Navigation menus - Images and media - Text and content layout I want the website to be optimized for all common mobile sizes. There are existing issues that need to be addressed: - Elements overlapping or misaligning - Content being too small or too large - Interactive elements being hard to use Ideal skills for the job include: - Proficiency in HTML, CSS and Javascript - Experience in mobile website optimization - Attention to detail to identify and fix...

Hi I am looking for a developer who is expert in Flutter and Dart and Androids. I need it vai is for support. Indian time 8:30 am to 10:30 am tuesday to saturday. 13$/hourly. Payment every saturday.

I have a progressive web application. I am trying to get the MVP ready. The website is I am looking for a *mostly* front end css/html/react developer to help me implement the in app designs so that we have responsive design in place for mobile/tablet/desktop. Most of the functionality is already built, using javascript/typescript, so it's making it look good. There are approx 10 pages in total that need designs implementing. *MOST PAGES DO NOT NEED DESIGN IMPLEMENTING FROM SCRATCH. MOST PAGES HAVE SOME DESIGN IMPLEMENTED ALREADY SO IT'S EDITING THE IMPLEMENTATION TO BE CORRECT TO THE FIGMA FILES* The pages are: Feeling Selection page Feeling Entry page Feeling End page Contact Us page Contact Confirmation Login Page Sign Up Page Forgot Passw...

I need a seasoned PHP/Laravel developer to help update the dashboard of our website, EamonExpress.com. The frontend work has already been completed and can be viewed here: Tasks: - Integrate the FedEx tracking API (which will be provided) - Add new features, specifically user analytics and a notification system - Improve the user interface and performance of existing features This is a time-sensitive task that needs to be completed within a day. Ideal candidates should be adept at working under pressure and have a proven track record with PHP and Laravel. Thank you.

I'm in need of an experienced frontend developer who can create a dashboard for an academic project using React. The dashboard will require various data visualizations presented as charts, tables, and graphs. The project does not require user authentication, so the focus will solely be on the interactive visualizations and overall user interface. Similar to this site but with a more sleek ui interface or this design Ideal Skills: - Proficiency in React - Experience with data visualization libraries such as D3.js, , or similar - Strong understanding of creating user-friendly interfaces - Knowledge of building responsive web applications - Familiarity with using tables for

1. copy the figma 2. improve the design (improve means improve not redesign). This means colours, elements, format, font, positioning if tiles, strips, elements etc. 3. Provide an image as your entry or a link to the figma. The winner will supply the link to the figma.

I have a React Next JS website template that I need converted into static HTML pages. The primary purpose of this conversion is to obtain HTML code. Following is the HTML template that we have purchased and we will send you the template in zip file once we decide to work together. Key Requirements: - The static HTML pages must maintain the current design and layout exactly as they are. - All functionality and interactivity from the original website must be preserved in the static HTML pages. Ideal Skills: - Proficiency in HTML, CSS, and JavaScript - Experience with React and Next JS - Ability to replicate designs accurately - Strong understanding

...principales: Experiencia comprobada: Mínimo 5 años trabajando con WordPress. Experiencia en el diseño y maquetación de webs para nichos competitivos como casinos, ecommerce, o tecnología. Portafolio con ejemplos de páginas rápidas, bien optimizadas y visualmente atractivas. Habilidades técnicas: Dominio de WordPress y builders como Elementor, Oxygen Builder o Gutenberg. Conocimiento avanzado de HTML, CSS y JS para personalizaciones rápidas. Capacidad para optimizar webs para velocidad de carga y SEO técnico. Experiencia con CDN, caché (ej.: WP Rocket), y herramientas de medición de rendimiento (ej.: Google PageSpeed). Rapidez y flexibilidad: Habilidad para realizar cambios y ajustes en tiempo r&ea...

More details: Is this project for business or personal use? Personal What information should successful freelancers include in their application? Past work How soon do you need your project completed? No time limit

...seasoned React JS developer with over 3 years of experience for the creation of a dynamic single-page application. The application will incorporate a complex workflow, necessitating the use of conditional branching at various stages. Key Features: - Development of an application with intricate workflow processes. - Implementation of conditional branching within the application workflow. - Support for multiple user roles, specifically Admin and User. Ideal Skills and Experience: - Over 3 years of demonstrable experience in React JS. - Proven track record of creating applications. - Strong understanding of implementing conditional branching within software workflows. - Experience in developing applications with multi-user role support. Please note, I'm ...

I'm looking for an experienced RPA developer proficient in Automation Anywhere. Specific tasks and platforms for automation are yet to be determined. Your input and expertise will be crucial in identifying repetitive tasks and suitable applications for automation. Ideal Skills: - Proficiency in Automation Anywhere - Strong understanding of RPA principles - Experience with identifying automation opportunities - Ability to work with various software platforms. SR. RPA DEVELOPER BRIEF Senior RPA Developer to join our team and lead the development, implementation, and maintenance of robotic process automation (RPA) solutions. As a Senior RPA Developer, you will be responsible for designing, developing, and testing RPA solutions to automate manual processes, improve...

I'm in need of an experienced Fullstack Developer with expertise in React, Node, Tailwind and Firebase (or any other SMS auth of your choice), as well as familiarity with GCP/AWS. The entire UI will be provided in Figma, also i will be assisting you with everything. I am a designer with knowledge in development. Kindly only commit if you are available and have prior experience. Also dont apply with generic proposals just for the sake of getting projects. Overview of project- Truck Booking Portal- Side- can signin/signup using OTP - Firebase otp auth pickup/drop (Ola maps/ Google maps) Truck done Admin Side- 1. Can manage all the bookings and change status 2. Can manage all users We can use any admin template you are comfortable with. I am ok...

...developer who can transform the front page of my website to emulate a cutting-edge streaming site. This isn't a WordPress project, so expertise in JavaScript, CSS, React, HTML, etc. is essential. Key Project Aspects: - User Interface Design: The revamped site needs to have a strikingly bold and vibrant design. Your ability to apply a modern and sleek aesthetic will be tested. - Navigation Bar & Content Recommendation Section: These two elements of the user interface are crucial. The navigation bar should facilitate smooth navigation while the content recommendation section needs to be engaging and intuitive. Ideal Skills & Experience: - Proficient in JS, CSS, React, HTML - Strong understanding of user interface design - Experience with creatin...

...for someone who is greedy but for someone who is willing to take an opportunity for their future. You will not be paid while making the app but after it is finished, ENJOY. This is a simple projecty: You take care of building the app, I take care of the app's success (marketing, finance to run the app...). This can be your side project, as long as you will get it done. Key Features of the App: - Messaging system - User profiles - Leaderboard - In-app wallet - Live streaming - Donations Ideal Skills and Experience: - Proficient in cross-platform app development (iOS and Android) - Skilled in creating complex, interactive features - Strong understanding of high-level user privacy and security measures - Experience in developin...

When you tap a "link in bio" of an Instagram profile on your mobile phone, by default the link opens in the Instagram in-app browser. However, I need my link to open in the default mobile browser (Chrome, Safari etc). I believe this can be achieved by adding some special code inside the target page. I have found 3 types of solutions online for this but none of them are proper solutions: Solution 1 - Fake downloading a file on the page so the Instagram browser redirects the visitor to the native mobile browser. Here is how: Solution 2 - Using a URL scheme such as googlechrome://domain to redirect the URL request to the native mobile browser. Here is how: https://stackoverflow

More details: What specific error or issue occurs when the test case fails in spring boot version 3.4.x? Test case assertion failure Which part of the test case is failing the assertion? Output/result verification Are there any changes in dependencies or libraries between spring boot version 3.3.x and 3.4.x? Yes, some dependencies were updated

Je travaille sur un projet de gestion de services en PHP/JS sans aucun framework (pas exclu). Le système déclenche une série d'actions lors de la réservation par un utilisateur, coordonnant les tâches entre les collaborateurs du prestataire de services, de la réservation jusqu'au départ. Le système doit être adaptable à divers services, allant par exemple de la location immobilière au jardinage en passant pas les soins ou autres. Le projet requiert : Une refonte professionnelle et corporate de l'interface utilisateur La mise en place d'un aspect moderne tout en assurant la facilité d'utilisation Le projet est en cours de développement, avec une architecture backend e...

I'm looking for a skilled developer who can create a one-page HTML, CSS, and JS website for me, inspired by thankslide. com. Key Requirements: - The site should have interactive elements, similar to the reference website. - I'm open to suggestions for specific interactive components, so creativity and experience with web interactivity are crucial. - A strong understanding of HTML, CSS, and JS is essential. Please provide examples of previous similar work in your proposal.

We are a team of 6 people working on building our product Nexus. It is an AI application where AI agents will do automatic customer support over phone calls, WhatsApp etc. Enterprises can connect their CRMs, WhatsApp, and tools and it will automatically take care of customer support - updating the tickets. The goal is to use AI to behave as call centers. AI picks up Phone calls or replies to WhatsApp messages and after closing the call or WhatsApp conversation updates the ticket on CRM. We are hiring a NestJs developer to build the web part. We already have junior developers, python, and go developers to take care of AI and core backend. We just need a NestJS developer to stitch it all together into a nice , clean dashboard with UI and custom integrations and enterprise ac...

... The Primary Node runs on Computer 1 (handles both read and write operations). The Secondary Node runs on Computer 2 (read-only replica). Reads and writes should always be directed to the currently active node—whether that is the original Primary Node or the newly promoted Primary Node after failover. If the Primary Node goes down, the Secondary Node should automatically promote itself to Primary. HAProxy should handle the traffic routing so that the application only needs to connect to one host and port for both reads and writes, with the proxy determining which node is currently the Primary. Automatic failover and failback must occur seamlessly, ensuring no data loss. 1. System Setup Primary Node: Runs ...

Prosimo, vpišite se ali se prijavite za več podrobnosti.

I will share a Figma Design to design a Roulette Game. Backend APIs will be provided to respective developer later after completion of the static screens or standalone Application Development. You shall be expert in Animations for this project. I am sharing the rough UI as of now, final UI will be shared at award. (Copy)?node-id=171-55&t=A7iJ5nOZCaoJAE4d-1

Need help with solving 2 issues.

Hi, I have a project, which should be done by 04.01.25. For this project I have an Instruction, written in German. This should be done in a HTML and a js document.

Only apply if your name is Mahmud. This project is only for Mahmud.

Only apply if your name is Mahmud. This project is only for Mahmud.

Job Title: Online Tutor for IT & Non-IT Courses Job Type: Part-Time/Contract (Remote) Courses: IT : C, C++, Python, Java, Android development, Graphic Designer, UI/UX developer, Angular Js, Node Js. Non-IT: Digital Marketing, Cloud Computing, Cybersecurity, Advanced Excel, MATLAB, Tally, CAD (CATIA, AutoCAD), HR Operations. Responsibilities: - Deliver engaging online classes. - Customize teaching materials. - Guide students on real-world projects. - Monitor progress and provide feedback. Requirements: - 3+ years of experience in the domain. - Strong communication and teaching skills. - Reliable internet and tools for online classes. Documentation Needed: Updated resume/CV. A sample recorded session (Mandatory). List of topics/cou...

Job Title: Online Tutor for IT & Non-IT Courses Job Type: Part-Time/Contract (Remote) Courses: IT : C, C++, Python, Java, Android development, Graphic Designer, UI/UX developer, Angular Js, Node Js. Non-IT: Digital Marketing, Cloud Computing, Cybersecurity, Advanced Excel, MATLAB, Tally, CAD (CATIA, AutoCAD), HR Operations. Responsibilities: - Deliver engaging online classes. - Customize teaching materials. - Guide students on real-world projects. - Monitor progress and provide feedback. Requirements: - 3+ years of experience in the domain. - Strong communication and teaching skills. - Reliable internet and tools for online classes. Documentation Needed: Updated resume/CV. A sample recorded session (Mandatory). List of topics/cou...

We are developing a small quiz based web platform with a focus on user engagement, leaderboards, real monetary rewards, and an excellent user experience. The platform's frontend is being built in parallel, and we are looking for an experienced backend developer to build the backend using Spring Boot under my guidance. You will be responsible for developing a secure, scalable backend and ensuring seamless integration with the frontend. Knowledge of React JS + Spring boot Responsibilities: Backend Development: Build RESTful APIs using Spring Boot to handle features such as: User management (signup, login, authentication). Challenge management (daily, weekly, monthly challenges). Leaderboards. Wallet transactions (earnings, withdrawals, pending balances). Help an...