error handling

Hi, i dont know how to handling error that say in this link line messaging api ref, it said

The following JSON data is returned in the response body when an error occurs.

so, i try using this

return client.replyMessage(event.replyToken, { type: "text", text: "" //im leaving this empty for testing });

i try to get this response (like in api reference) { "message":"The request body has 2 error(s)", "details":[ { "message":"May not be empty", "property":"messages[0].text" }, { "message":"Must be one of the following values: [text, image, video, audio, location, sticker, template, imagemap]", "property":"messages[1].type" } ] }

but i dont know how

this is my full script server.js

TIA

[EriecTanijaya]

i see, thanks for fast reply!

[xingoxu]

And by the way, the type of this kind of Error should be HTTPError. You can also handle it as error instanceof HTTPError