probot/lib/helpers/get-error-handler.js

A framework for building GitHub Apps to automate and improve your workflow

export function getErrorHandler(log) {
    return (error) => {
        const errors = error instanceof AggregateError ? error.errors : [error];
        const event = error.event;
        for (const error of errors) {
            const errMessage = (error instanceof Error
                ? error.message
                : typeof error === "object" &&
                    error !== null &&
                    "message" in error &&
                    typeof error.message === "string"
                    ? error.message
                    : String(error) || "").toLowerCase();
            if (errMessage.includes("x-hub-signature-256")) {
                log.error(error, "Go to https://github.com/settings/apps/YOUR_APP and verify that the Webhook secret matches the value of the WEBHOOK_SECRET environment variable.");
                continue;
            }
            if (errMessage.includes("pem") || errMessage.includes("json web token")) {
                log.error(error, "Your private key (a .pem file or PRIVATE_KEY environment variable) or APP_ID is incorrect. Go to https://github.com/settings/apps/YOUR_APP, verify that APP_ID is set correctly, and generate a new PEM file if necessary.");
                continue;
            }
            log
                .child({
                name: "event",
                id: event?.id,
            })
                .error(error);
        }
    };
}