DefinitelyTyped/types/koa-hbs/koa-hbs-tests.ts

import * as Koa from 'koa';
import hbs = require("koa-hbs");
import * as Path from 'path';

const app = new Koa();

hbs.registerHelper('link', (text: string, url: string) => {
    text = hbs.Utils.escapeExpression(text);
    url = hbs.Utils.escapeExpression(url);

    let result = `<a href="${url}">${text}</a>`;

    return new hbs.SafeString(result);
});

app.use(hbs.middleware({
    viewPath: Path.join(__dirname, './views')
}));

app.use(async (ctx, next) => {
    await ctx.render('index', {
        title: 'Hello World!'
    });
});

app.listen(3000);