How to extract JSON value in strangely formatted array? - json

Question

I'm using a custom script for importing JSON into Google Sheets through a function. I can import values from propertys without any problem, but I have some problem with a specific array. It is a property which contains more information, but it seems the formatting makes the array into one single value instead of several (something with the slashes?). First, the script:
function getStat(url, propertyName)
{
let content = UrlFetchApp.fetch(url).getContentText();
let parsed = JSON.parse(content);
let processed = parsed.data
.filter(e =>
// Conditions go here:
e.season_format === 'Domestic League' &&
e.season === '2020/2021'
)
.map(e => e.stats[propertyName]);
return processed;
}
I want to get the value after "3" in the array called additional_info (simplified version below). But when I try to get the value, instead I get the third character in the array. I don't get "55" which is the value. I've tried with a bunch of variants. But I can't get it to work. For example, additional_info["3"] returns the third character in the array, not the value. Any tips? I've no problem getting the values of suspended_matches and home_AttackAdvantage.
{
"success": true,
"data": [
{
"season": "2020/2021",
"season_format": "Domestic League",
"stats": {
"suspended_matches": 20,
"homeAttackAdvantage": 3,
"additional_info": "{\"1\":1,\"2\":2,\"3\":55,\"4\"}"
}
}
]
}

Answer 1

The issue was that additional_info is yet another JSON string, so you have to parse it again.
function getStat(url, propertyName, additionalProp)
{
let content = UrlFetchApp.fetch(url).getContentText();
let parsed = JSON.parse(content);
let processed = parsed.data
.filter(e =>
// Conditions go here:
e.season_format === 'Domestic League' &&
e.season === '2020/2021'
)
.map(e => additionalProp
? [
e.stats[propertyName],
JSON.parse(e.stats.additional_info)[additionalProp]
]
: e.stats[propertyName]
);
return processed;
}
This gives you a function you can use in a formula:
=getStat(
"https://api.footystats.org/team?key=example&team_id=93",
"suspended_matches",
"330"
)
If you don't specify the third argument, it will just return a single column.