koa-nunjucks-next

koa2 view render based on nunjucks, support asynchronous filters.

Installation

npm install koa-nunjucks-next

Warn

Do not use babel compile。

API

views(root, opts)

• root: (default views) Views location. All views you render() are relative to this path.
• opts nunjucks configure opts
• opts.globals: nunjucks global values that will be available to all templates
• opts.filters: nunjucks filters, support asynchronous filter
• opts.extensions: nunjucks extensions (e.g. highlight code blocks)

filters: {
	asyncAdd1: (val1, val2) => {
		return new Promise((resolve, reject) => {
			setTimeout(() => resolve(val1 + val2), 2000);
		});
	},
	asyncAdd2: async (val1, val2) => {
		let val3 = await new Promise((resolve, reject) => {
			setTimeout(() => resolve(100), 1000);
		});

		return await new Promise((resolve, reject) => {
			setTimeout(() => resolve(val1 + val2 + val3), 2000);
		});
	},
	syncAdd: (val1, val2) => {
		return val1 + val2;
	}
}

• opts.extname: (default html) Extension for your views

// instead of this
await ctx.render('test.html')
// you can
await ctx.render('test')

ctx.render(template, content, [isStringTemplate])

// renders a template
await ctx.render('test', {})

// renders a raw string
await ctx.render('{{ val1 | asyncAdd1(1) }}', { val1: 66666 }, true)

Example

let views = require('koa-nunjucks-next');

app.use(views('../views', {
	filters: {
		asyncAdd: (val1, val2) => {
			return new Promise((resolve, reject) => {
				setTimeout(() => resolve(val1 + val2), 2000);
			});
		},
		syncAdd: (val1, val2) => {
			return val1 + val2;
		}
	}
}));

router.get('/test-template', async (ctx, next) => {
	await ctx.render('test', {
		'val1': 66666
	});
});

router.get('/test-string', async (ctx, next) => {
	await ctx.render('{{ val1 | asyncAdd(1) }}', {
		'val1': 66666
	}, true);
}); //==> 66667