When does catch get activated?

Parse Server 📡 Cloud Code
1

Hello everyone! I was wondering, when I have a request like this;

try {
     const fetchedCourseObject = await courseObject.fetch();
     return fetchedCourseObject;
}
catch (error) {
    throw error;
}

when does catch get activated? If the response is null or an empty array, does it consider it as a success?

2

The catch will be activated if an error is thrown when calling courseObject.fetch().

For Example, if courseObject has been deleted from the database and you call fetch() on it, a Parse.Error will be thrown and handled in the catch.

1 Like
3

So if the response is null?

4

I dont think courseObject.fetch() will ever return null… but if it did you could do something like:

try {
    const fetchCourseObject = await courseObject.fetch();
    if (fetchCourseObject === null) {
        throw new Parse.Error(400, 'some error message');
    }
} catch (error) {
    console.log(error.message);
    // this will log "some error message" to the console if courseObject.fetch() returns null
}
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