@appsemble/node-utils/server/routes/appRouter/iconHandler.js

NodeJS utilities used by Appsemble internally.

import { serveIcon } from '@appsemble/node-utils';
import { isEqual, parseISO } from 'date-fns';
export function createIconHandler({ getApp, getAppIcon, getDbUpdated }) {
    return async (ctx) => {
        const { 
        // @ts-expect-error Messed up
        params: { size = 128 }, query: { maskable = false, updated }, } = ctx;
        const app = await getApp({
            context: ctx,
            query: { where: { ...(updated ? { updated } : {}) } },
        });
        const dbUpdated = app ? await getDbUpdated({ app, maskable, context: ctx }) : false;
        const appIcon = app ? await getAppIcon({ app, context: ctx }) : null;
        await serveIcon(ctx, {
            background: maskable ? app?.iconBackground || '#ffffff' : undefined,
            cache: dbUpdated ? isEqual(parseISO(updated), dbUpdated) : false,
            fallback: 'mobile-alt-solid.png',
            height: size && Number.parseInt(size),
            // @ts-expect-error 2322 null is not assignable to type (strictNullChecks)
            icon: appIcon,
            maskable: Boolean(maskable),
            width: size && Number.parseInt(size),
        });
    };
}
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