Node.js function error handling

If a handler reports a Node.js function execution or loading error, the runtime automatically catches the error and returns a JSON document with details of the error type, text, and location. For more information about the JSON document format, see Invoking a function.

The error info is also written to the execution log. You can view the log via the Yandex Cloud CLI or the management console.

Example of error handlingExample of error handling

Function code:

module.exports.handler = function () {
    return unknownVariable;
};

JSON document returned:

{
  "errorMessage": "unknownVariable is not defined",
  "errorType": "ReferenceError",
  "stackTrace": [
    ...
  ]
}