Show HN: OhMyCo.in – Real-time charts for cryptocurrency markets

Post by jkirsteins » Thu, Nov 23, 2017, 7:09 AM UTC

askmike wrote: post #58

Looks great, would love to see some exchanges supported that people outside the US can actually use (GDAX is not accessible to most people in EU).

Post by askmike » Thu, Nov 23, 2017, 7:19 AM UTC

ArturSoler wrote: post #30

ChristianGeek wrote: post #26

Earlier quoted context omitted.

I don't know what the OP meant by responsive but it is definitely more responsive as far as frequency of updates.

Are you looking at the same market? The default market on OhMyCoin is Gemini which has fewer updates than GDAX. GDAX does the fade-in and fade-out animation on the order book, which helps give it dynamism. It may have a bit more render frequency, as OhMyCoin orderbook is rendered every 200ms. I considered that fast enough, given it's nature nobody is going to read and process the data faster than that, and it consume…

Post by jespern » Thu, Nov 23, 2017, 9:00 AM UTC

qmarchi wrote: post #57

ArturSoler wrote: post #47

Earlier quoted context omitted.

I can store the tick data, although I'm not storing it at the moment (I disabled it for the launch and will test the load that enabling it represents). I use Cassandra with just 1 node for the moment. It's kind of that, although the client doesn't talk to the exchange directly, it only talks to the backend. The backend consumes events from the different exchanges, transforms it to a common format, stores it and serve…

For this kind of data, I'd actually use a Time Series Database like ElasticSearch, InfluxDB, or Riak. They're built for data like this. We're using ElasticSearch at work and it's been wonderful.

Post by joshfarrant » Thu, Nov 23, 2017, 9:53 AM UTC

Post by ArturSoler » Thu, Nov 23, 2017, 12:08 PM UTC

joshfarrant wrote: post #67

Looks great! Looking forward to seeing support for XMR!