Reading key-value json data into google sheet cells - json

Question

I am looking to bring in the "bid" values from each "ticker" from this API call https://api.etherdelta.com/returnTicker into Google Sheet cells.
An example cell value will have something like: =crypt("PPT).
Here is the code I have so far, but I am having a hard time figuring out how I can get the data for each ticker (I know I haven't declared "ticker" anywhere in the code).
function crypt(ticker) {
var url = "https://api.etherdelta.com/returnTicker";
var response = UrlFetchApp.fetch(url);
var text = response.getContentText();
var json = JSON.parse(text);
var price = json[bid];
return parseFloat(bid);
}

Answer 1

How about the following modifications?
Modification points :
Each ticker name has a header of ETH_.
ETH_ + ticker is a key of the object.
When =crypt("PPT") is used, the key is ETH_PPT and "bid" you want is in the value of ETH_PPT.
The modified script which was reflected above is as follows.
Modified script :
function crypt(ticker) {
var url = "https://api.etherdelta.com/returnTicker";
var response = UrlFetchApp.fetch(url);
var text = response.getContentText();
var json = JSON.parse(text);
var price = json["ETH_" + ticker].bid; // Modified
return parseFloat(price); // Modified
}
This modified script retrieves the value of bid for each ticker by putting =crypt("PPT") to a cell in the spreadsheet.
Note :
It seems that an error response is sometimes returned from the URL.
If I misunderstand your question, I'm sorry.