btt | Low level MacOS management in JavaScript via BetterTouchTool

First, you need to change add the field named "orders" in Coin document.

The structure you are building has several levels of nesting. Let's think about them inside out.

Each coin's data is a mapping from date to value. It makes sense for this to be a single dict rather than a list of singleton dictionaries. To add a new mapping, just set coindict[date] = value

The structure above this is a dictionary of coin names, which are strings, with a coindict as described above as the value of each.

Python's defaultdict provides a good way to avoid having to go through

As answered by Mustapha Aydın in the comment section this is the best answer:

Which version of chart.js are you running because if you reinstalled it its a high chance you are running version 3 of the lib which is at the moment still not compatible with the wrapper so you will have to install the latest version 2 release of chart.js (2.9.4)

First things first, in AHK v1 you escape quotes by doing a double quote "".
Here "tradePrice"`":(.*?)\." your resulting string has a double quote in it by pretty much sheer luck.
Actually it's supposed to be done like this: "tradePrice"":(.*?)\.".
You'll need to correctly escape quotes in what you're going to do next.
Also, since you have a json response, you might want to parse the json and use it how it's supposed to be used.^{(See AHK JSON/Jxon)}

So about the websocket.
Personally I'd say G33kDude's example^(Github) explains it pretty well, but maybe you were thrown off by the object oriented code style choice he's made for it.
It's not that easy to understand if you're not experienced with OOP/OOP AHK I guess.

Here's an example for calling an echo websocket with the data you wanted to send.

Your DAO:

You can install PyPi regex library, use your current pattern without any modifications and upon getting a match using regex.search, access the match.capturesdict:

You are using same id inside your map. IDs should be unique in a page.

If you have multiple IDs in a page getElementById will return only the first one.

You could change this line

Based on the linked example data, and on How to hatch PolyCollection instance? for a method to hatch the PolyCollection created by pcolor: