DefinitelyTyped/types/nunjucks/nunjucks-tests.ts

import nunjucks = require("nunjucks");

nunjucks.configure({ autoescape: false });

let rendered = nunjucks.render("./noexists.html");

nunjucks.render('foo.html', { username: 'James' });
nunjucks.render(
  'async.html',
  (err: nunjucks.lib.TemplateError | null, res: string | null) => {},
);

const ctx = { items: ["Hello", "this", "is", "for", "testing"] };
const src = "{% for item in items %}{{item}}{% endfor %}";

rendered = nunjucks.renderString(src, ctx);
nunjucks.renderString('Hello {{ username }}', { username: 'James' });

const compiled = nunjucks.compile(src);
rendered = compiled.render(ctx);
nunjucks.compile('Hello {{ username }}').render({ username: 'James' });

rendered = nunjucks.precompileString(src, {
    name: "TestyWesty"
});

const template = new nunjucks.Template(src);
rendered = template.render(ctx);

let env = nunjucks.configure({ autoescape: false });
nunjucks.configure('/views');
nunjucks.configure('views', {
    autoescape: true,
    watch: true
});
rendered = env.renderString(src, ctx);

let extension: nunjucks.Extension = {
  tags: ["glitter", "star wars", "Age of Empires"],
  parse(parser, nodes, lexer) {
      return "The parser api is complicated";
  }
};
env = env.addExtension("SpawnGlitter", extension);
const hasExtension: boolean = env.hasExtension('SpawnGlitter');
extension = env.getExtension('SpawnGlitter');
env.removeExtension('SpawnGlitter');

env = env.addGlobal('key', 'value');
const value = env.getGlobal('key');

env = env.addFilter('testFilter', arg => arg, false);
const testFilter: ((arg: any) => any) = env.getFilter('testFilter');

nunjucks.installJinjaCompat();

class MyLoader extends nunjucks.Loader implements nunjucks.ILoader {
    getSource(name: string): nunjucks.LoaderSource {
        return {
            src: "Amadala",
            path: "The Right One",
            noCache: false
        };
    }
}

env = new nunjucks.Environment(new MyLoader());

new nunjucks.runtime.SafeString("an unsafe string");