...
| Code Block |
|---|
{
"Descriptive": {
"Title": "#{R('Descriptive.Title').toUpperCase()}",
"Description": "#{R('Descriptive.Title') + ': ' + R('Dynamic.CustomDescription')}",
"Keywords": {"Keyword": "#{{R('Dynamic.CustomTag')}}"}
},
"Dynamic": {
"Orientation": "#{R('Technical.Width') > R('Technical.Height') ? 'Horizontal' : 'Vertical'}",
"AdditionalInformation": "My custom field"
}
} |
...
Output after evaluating the expression | Conversion into JSON |
|---|---|
| JSON string |
| JSON boolean |
| JSON number |
| JSON array |
| JSON object |
| JSON object containing JSON arrays |
Notice how the string "#{{R('Dynamic.CustomTag')}}" is evaluated into an array ["My custom tag"]. The end result is a valid metadata sidecar for “Keywords” namely "Keywords": {"Keyword": ["My custom tag"]} whereas before evaluating the expression "Keywords": {"Keyword": "#{...}"} is not a strictly valid metadata sidecar because the value of "Keyword" must be an array and not a string.
...