Woohoo! Made it through the bugging output by replacing all curlies with double curlies! Thanks to this stackoverflow → f-string: single '}' is not allowed Python SPARQL Query problem - Stack Overflow. Thx for your help, mate
// Escape curly braces
function replace_braces(text) {
return text.replace(/{/g, '{{').replace(/}/g, '}}');
}
// Loop over input items and add a new field called 'myNewField' to the JSON of each one
for (const item of $input.all()) {
item.json.text = replace_braces(item.json.text);
}
return $input.all();