I am using a json string like this in a test class.
[{
"id":"01t4B000000XrvhQAC",
"name":"abc123",
"DateRange":{"startDate":"2020-02-17","endDate":"2020-02-26"}
}]
Now instead of hard coding id, I want to use a variable named prdId.
How can I do this? I tried putting prdId there, it says,
System.JSONException: Unexpected character ('p' (code 112)): expected a valid value (number, String, array, object, 'true', 'false' or 'null') at [line:1, column:9]
Omitting the rest of the structure for brevity, you can do something like the following:
'[{"id": "' + prId + '"}]`
I tend to prefer creating a class to represent the structure and then serialize that.
class MyObject
{
Id id;
String name;
DateRange dateRange;
}
class DateRange
{
String startDate, endDate;
}
Then in your test:
MyObject instance = new MyObject();
instance.id = prId;
instance.name = 'abc123';
instance.dateRange = new DateRange();
instance.dateRange.startDate = '2020-02-17';
instance.dateRange.endDate = '2020-02-26';
String myJSON = JSON.serialize(instance);
Apex, it's wrapped in single quotes.