React app POST / FETCH problem on railway.app

⭐⭐⭐It's me you're looking for.⭐⭐⭐ Hi, there. I am a specialist with 6 years proven experience in Full Stack development using Node.js,React.js. I have checked your project description thoroughly and I think that I can help you to fix this project fully 100% sure to satisfy your requirement. It's ideal match with my knowledge and experience. If you leave it up to me, I will be able to implement this project perfectly & smartly ⭐ASAP⭐. I am ready to start your project now. So please don't hesitate to contact me and share more details about your project specs in chat. Everything is negotiable. Thanks and Regards.

Hello, 100% Satisfaction / 24-7 full time. i have just read your proposal and understand the requirements. As a senoir full stack web developer, I am pretty sure i can complete your project perfectly. I can start the work immediately and will deliver the good result with low budget, outstanding services and short period. Client satisfaction is my pride and goal. Thank-you & welcome. All the best.

Hi there. I'm a react.js expert who you're looking for. Please message me so that we have a discussion more. Thanks

Hello Dear, How are you? just went through your job description. very very interested in this role. want to work on it. would love to discuss further more with you. Thank you :)

Hi, Hi Jakub K., We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on JavaScript, Node.js, Express JS, React.js Please come over chat and discuss your requirement in a detailed way. Thank You

Hello Client. Very glad to bid your project because my skills are matched in your project very well. I am very familiar with React.js As a senior Web Developer and Designer with over 7 years experiences, I have worked lots of jobs like this before. So I can complete your project in a short time perfectly and provide the best satisfaction to you through this project. I am pleasure if i might have a chance to talk with you via chat. I can start to work right now so please give me chance to serve for you. Thanks for reading my bid and giving your precious time.

Hi, I can help you to fix fetch request issue on mern project. I am ready to start right now. Thanks...............

Hi, I'm certain I can help your solve your connectivity issue. Of course I would need more details. With 15+ years of experience in web development I often encountered and solved this type of issue. And I'm used to people coming to me for this kind of help on code I don't know. Please contact me so we can discuss your issue further Regards,

As a front-end developer, I am passionate about using my skills and creativity to bring ideas to life through engaging and user-friendly web experiences. I am constantly learning and staying up-to-date with the latest technologies and design trends, and I am excited about the opportunity to apply my skills and grow as a developer in a dynamic and forward-thinking organization.

the screenshot provided by you are not enough to find the problem. can you also share the screenshot of network tab??. i can look into this issue and fix it as soon as possible. contact me for further discussion. would love to help you out in this.

Hi Client , We are a team of software engineer. Having expertise in Node.JS,React,JS. We saw the project requirement and realised that you need us to work on Node.js . We have extensively used AWS API Gateway , AWS Lambda , AWS S3 , AWS SNS , Kinesis ,MySQL etc . We can build a strong architecture for you . Let us know further requirements and details of the project. If given a chance we will prove this project worth while to you. Thanks

please provide more details about what is your app what it does, you can contact me and we can have discussion on it. if my hunch is correct from the limited information that i have from the screenshots that you have given. it's a really simple problem to solve, but i can't be 100% sure. I'm new too this freelancing business but I will guarantee you a best service, so don't worry and gimme one chance.