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Calling ccxt from HTML

See original GitHub issue

Can you please post an example of how to use ccxt in a browser context? I have this simple test html:

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html> <head>
<title>CCXT Test</title>

<script type="text/javascript" src="scripts/ccxt.js"></script>
</head>

<body>
<script type="text/javascript">
console.log (ccxt.exchanges)
</script>
</body> </html>

Of course the ccxt.exchanges call throws a reference exception. I tried to copy ccxt.js into my local directory but when looking at the source I see a bunch of require imports to /js/base/… which require node.js. I even tried to set up require.js on my server but wasn’t able to make this work.

Definitely open to ideas, thanks!

Issue Analytics

State:
Created 3 years ago
Comments:39 (20 by maintainers)

Top GitHub Comments

1reaction

mmehrlecommented, Mar 23, 2021

Quick update - I copied my OS X binary over to CentOS and got it working. In the interim I upgraded my server to python 3.8 and was able to get tox installed there as well. I’m now able to run the build script on both platforms.

When loading my JS test page it shows only the needed exchanges:

(5) ["binance", "bittrex", "coinbase", "kraken", "kucoin"]
0: "binance"
1: "bittrex"
2: "coinbase"
3: "kraken"
4: "kucoin"
length: 5
__proto__: Array(0)

Then it retrieved the OHLCV data just fine. MUCH quicker load time as ccxt.browser.js now is 1.5Mb as opposed to 6.3MB. So definitely worth all the pain to get it working.

Thanks a ton for your help and I hope that my trials and tribulations made your install procedure more anti-fragile 😉

1reaction

mmehrlecommented, Mar 23, 2021

Okay a few pointers for your tutorial:

pip install tox is missing - you already know that.
echo is not reliable on bash across various platforms. Your call did not work for me on both OS X and CentOS. However what makes it work is the -e flag:

echo -e “binance\nkraken\nbittrex\ncoinbase\nkucoin” > exchanges.cfg

Tested it on both and it produces a carriage return.

cp build/ccxt.browser.js path/to/your/html/project needs to be replaced with: cp ./dist/ccxt.browser.js /path/to/your/html/project

It’s not putting it into build but into dist - fortunately I caught that watching the install log.

So got it to work on OS X at least.

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