Node.js function error handling

If a handler reports a Node.js function runtime or loading error, the runtime environment automatically captures the error and returns a JSON document with details of the error type, text, and location in the response. For more information about the JSON document format, see Calling a function.

The error data is also written to the execution log. You can view it using 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": [
    ...
  ]
}