Finding ImportJSON Query Path in Google Sheets - google-apps-script

Question

Using Google Sheets with the custom IMPORTJSON function, I'm trying to parse the results of this URL so that it returns only the nodes with "highs".
Using the below formula, where cell A1 is the above URL, returns a #REF! error:
=ImportJSON(A1, "/data//highs", "noInherit, noTruncate")
I've also tried other variations of the /data//highs query (which would usually work with the IMPORTXML function) in the formula with the same result.
DESIRED OUTPUT
The query should result in displaying the records under "highs", i.e., both /data/nasdaq/highs and /data/nyse/highs.
The below image is the output for /data/nasdaq/highs. I'm looking to combine that query result with that for /data/nyse/highs in a single call.

Answer 1

Using ImportJSON:
One option could be to just separate both queries by a comma:
=ImportJSON(A1, "/data/nasdaq/highs,/data/nyse/highs", "noInherit, noTruncate")
This has several potential downsides, though: it won't automatically detect any additional ticket that has highs, but just nasdaq and nyse. If you wanted others, you'd have to edit your query.
Also, it will return nasdaq and nyse values in multiple columns, which I assume is not what you want.
Writing an alternative function:
Alternatively, since importJson cannot handle queries like //data/*/highs, I'd suggest writing a different custom function to handle this. To do this, select Extensions > Apps Script and copy the following function (see inline comments):
function altImportJson(url, query) {
const jsondata = UrlFetchApp.fetch(url); // Get data
let object = JSON.parse(jsondata.getContentText());
const levels = query.split("/").filter(String); // Get query levels
for (let i = 0; i < levels.length; i++) { // Iterate through query levels
const current = levels[i];
const last = levels[i-1];
const next = levels[i+1];
if (current != "*" && last != "*") object = object[current]; // Regular level, not "*"
else if (current == "*") { // Handle "*"
object = Object.values(object)
.filter(o => o[next])
.map(o => o[next])
.flat();
}
};
const headers = [...new Set(object.map(item => Object.keys(item)).flat())];
const data = object.map(item => { // Transform object to 2D array
let row = new Array(headers.length);
const entries = Object.entries(item);
entries.forEach(entry => {
const columnIndex = headers.indexOf(entry[0]);
if (columnIndex > -1) row[columnIndex] = entry[1];
});
return row;
});
data.unshift(headers);
return data;
}
After copying this function and saving your script, you can now call it:
=altImportJson(A1, "//data/*/highs")