https://stackoverflow.com › questions › 40500490

"DeprecationWarning: Unhandled promise rejections are deprecated" TLDR: A promise has resolve and reject, doing a reject without a catch to handle it is deprecated, so you will have to at least have a catch at top level.

https://hatchjs.com › unhandledpromiserejectionwarning-unhandled-promise-rejection

Unhandled promise rejections occur when a promise is rejected and no one handles the rejection. Promise rejections can be caused by errors in your code, by external factors, or by the user. To prevent unhandled promise rejections, you can use try/catch blocks, promise catchers, and rejection handlers.

https://hatchjs.com › possible-unhandled-promise-rejection

A possible unhandled promise rejection is a warning that is emitted by the JavaScript engine when a promise is rejected and no `catch` block is present to handle the rejection. This warning can occur when a promise is rejected in a nested function or when a promise is rejected by a third-party library.

https://www.journaldunet.fr › developpeur › developpement › 1441163-nodejs-comment-resoudre...

Le message d'erreur "UnhandledPromiseRejectionWarning" est lié à l'utilisation de ces promesses. Ce message d'erreur est appelé lorsque le cas d'erreur d'une promesse n'a pas été traité par votre application. Pour traiter une erreur, vous devez implémenter la méthode "catch ()" dans le code appelant la promesse.

https://www.journaldunet.fr › developpeur › developpement › 1499391-node-js-comment-eviter-l...

C'est la méthode pour résoudre le message d'erreur de type "UnhandledPromiseRejectionWarning". Si vous rencontrez ce message d'erreur dans le développement d'un code, c'est que vous avez écrit une promesse à un endroit où vous n'auriez pas dû. La promesse ne fonctionne pas et votre code renvoie ce message d'erreur.

https://stackoverflow.com › questions › 62876513

This error originated either by throwing inside of an async function without a catch block or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)

https://alphacoder.xyz › nodejs-unhandled-promise-rejection-warning

If we fail to handle a Promise rejection, we’re shown the UnhandledPromiseRejectionWarning by Node.js. const slowAndSteady = new Promise(function(resolve, reject) { reject(); }); (async function() { await slowAndSteady; })();

https://frontendscript.com › node-js-promise-unhandledpromiserejection-warning

UnhandledPromiseRejectionWarning is a common error message that appears in JavaScript applications that use Promises. It is a warning that indicates that a Promise has been rejected and there is no handling mechanism in place to deal with the failure.