nida-001/index.html

## index.html
<!doctype html>
<html amp>
    <head>
        <meta charset="utf-8">
        <script async src="https://cdn.ampproject.org/v0.js"></script>
        <!--
            Additionally used AMP components must be imported in the header.
        -->
        <script async custom-template="amp-mustache" src="https://cdn.ampproject.org/v0/amp-mustache-0.1.js"></script>
        <script async custom-element="amp-form" src="https://cdn.ampproject.org/v0/amp-form-0.1.js"></script>
        <script async custom-element="amp-analytics" src="https://cdn.ampproject.org/v0/amp-analytics-0.1.js"></script>
        <script async custom-element="amp-access" src="https://cdn.ampproject.org/v0/amp-access-0.1.js"></script>
        <script async custom-element="amp-list" src="https://cdn.ampproject.org/v0/amp-list-0.1.js"></script>
        <meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
        <script id="amp-access" type="application/json">
        {
            "authorization": "http://localhost:8080/authorization?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&_=RANDOM",
            "noPingback": "true",
            "login": {
              "sign-in": "http://localhost:8080/login?rid=READER_ID&url=CANONICAL_URL",
              "sign-out": "http://localhost:8080/logout"
            },
            "authorizationFallbackResponse": {
                "error": true,
                "loggedIn": false
            }
        }
        </script>
    </head>
    <body>
        <span amp-access="NOT loggedIn" role="button" tabindex="0" amp-access-hide>
            <h2 class="m1">Please login to comment</h2>
            <button on="tap:amp-access.login-sign-in" class="ampstart-btn mx1 mt1 caps">Login</button>
        </span>
    </body>
</html>

## srv.js
const http = require('http');
const server = http.createServer();
server.on('request', function(request, response) {
    const headers = request.headers;
    const method = request.method;
    const url = request.url;
    let body = [];
    request.on('error', function(err) {
        console.log('error');
        console.log(err);
    }).on('data', function(chunk) {
        body.push(chunk);
    }).on('end', function() {
        body = Buffer.concat(body).toString();

        response.on('error', function(err) {
            console.error(err);
        });

        response.statusCode = 200;
        response.setHeader('Content-Type', 'application/json');
        response.setHeader("Access-Control-Allow-Origin", 'null');
        response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
        response.setHeader('Access-Control-Allow-Credentials', true);
        response.setHeader('access-control-expose-headers', 'AMP-Access-Control-Allow-Source-Origin');
        response.setHeader('amp-access-control-allow-source-origin', 'http://localhost:8000');
        response.setHeader('amp-access-control-allow-source-origin', 'file://');

        var responseBody = {
            'loggedIn': true
        };

        response.write(JSON.stringify(responseBody));
        response.end();
    });
}).listen(8080);
	<!doctype html>
	<html amp>
	<head>
	<meta charset="utf-8">
	<script async src="https://cdn.ampproject.org/v0.js"></script>
	<!--
	Additionally used AMP components must be imported in the header.
	-->
	<script async custom-template="amp-mustache" src="https://cdn.ampproject.org/v0/amp-mustache-0.1.js"></script>
	<script async custom-element="amp-form" src="https://cdn.ampproject.org/v0/amp-form-0.1.js"></script>
	<script async custom-element="amp-analytics" src="https://cdn.ampproject.org/v0/amp-analytics-0.1.js"></script>
	<script async custom-element="amp-access" src="https://cdn.ampproject.org/v0/amp-access-0.1.js"></script>
	<script async custom-element="amp-list" src="https://cdn.ampproject.org/v0/amp-list-0.1.js"></script>
	<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
	<script id="amp-access" type="application/json">
	{
	"authorization": "http://localhost:8080/authorization?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&_=RANDOM",
	"noPingback": "true",
	"login": {
	"sign-in": "http://localhost:8080/login?rid=READER_ID&url=CANONICAL_URL",
	"sign-out": "http://localhost:8080/logout"
	},
	"authorizationFallbackResponse": {
	"error": true,
	"loggedIn": false
	}
	}
	</script>
	</head>
	<body>
	<span amp-access="NOT loggedIn" role="button" tabindex="0" amp-access-hide>
	<h2 class="m1">Please login to comment</h2>
	<button on="tap:amp-access.login-sign-in" class="ampstart-btn mx1 mt1 caps">Login</button>
	</span>
	</body>
	</html>
	const http = require('http');
	const server = http.createServer();
	server.on('request', function(request, response) {
	const headers = request.headers;
	const method = request.method;
	const url = request.url;
	let body = [];
	request.on('error', function(err) {
	console.log('error');
	console.log(err);
	}).on('data', function(chunk) {
	body.push(chunk);
	}).on('end', function() {
	body = Buffer.concat(body).toString();

	response.on('error', function(err) {
	console.error(err);
	});

	response.statusCode = 200;
	response.setHeader('Content-Type', 'application/json');
	response.setHeader("Access-Control-Allow-Origin", 'null');
	response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
	response.setHeader('Access-Control-Allow-Credentials', true);
	response.setHeader('access-control-expose-headers', 'AMP-Access-Control-Allow-Source-Origin');
	response.setHeader('amp-access-control-allow-source-origin', 'http://localhost:8000');
	response.setHeader('amp-access-control-allow-source-origin', 'file://');

	var responseBody = {
	'loggedIn': true
	};

	response.write(JSON.stringify(responseBody));
	response.end();
	});
	}).listen(8080);