Do not mix callback and async/await

[mcollina]

As an example this https://github.com/Tarang11/fastify-csrf/blob/master/lib/fastifyCsrf.js#L20-L31:

	async function handleCsrf(request, reply, done) {
		var secret = getSecret(request, cookie);
		// cookie for csrf token not set.
		if(!secret) {
			secret = await tokens.secret();
			setSecret(request, reply, secret, cookie);
		}
		if(ignoreMethods.indexOf(request.req.method) < 0 && !tokens.verify(secret, tokenIdentifier(request))) {
			return done(new Error('invalid csrf token'));
		}
		done();
	}

Could be rewritten as:

	async function handleCsrf(request, reply) {
		var secret = getSecret(request, cookie);
		// cookie for csrf token not set.
		if(!secret) {
			secret = await tokens.secret();
			setSecret(request, reply, secret, cookie);
		}
		if(ignoreMethods.indexOf(request.req.method) < 0 && !tokens.verify(secret, tokenIdentifier(request))) {
			throw new Error('invalid csrf token');
		}
	}

[Tarang11]

Done. Sry I didn't see that.