DUO API Error: 'Missing request timestamp' (Code 40104) - Help needed

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1

I’m a Java beginner trying to use the Duo Admin API to create a user. When I run my code, I get an error saying ‘Missing request timestamp’ with code 40104. Can someone help me figure out what’s wrong?

Here’s a simplified version of what I’m trying to do:

import java.net.http.*;
import java.util.Base64;

public class DuoApiTest {
    public static void main(String[] args) throws Exception {
        String apiKey = "mykey";
        String apiSecret = "mysecret";
        String credentials = Base64.getEncoder().encodeToString((apiKey + ":" + apiSecret).getBytes());

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
            .uri(new URI("https://api.duosecurity.com/admin/v1/users"))
            .header("Authorization", "Basic " + credentials)
            .header("Content-Type", "application/json")
            .GET()
            .build();

        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}

The response I get is:

{"code": 40104, "message": "Missing request timestamp", "stat": "FAIL"}

What am I missing? Do I need to add a timestamp to my request? Any help would be appreciated!

2

oh yeah, i ran into this same issue. you need to add a ‘Date’ header to your request. it’s a bit tricky, but you gotta format it like RFC 2822. try something like this:

SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss Z");
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
String dateHeader = dateFormat.format(new Date());

ten just add .header(“Date”, dateHeader) to your request builder. that should fix it!

3

Hey there, I’ve dealt with this Duo API issue before. The problem is that you’re missing a crucial piece in your request - the timestamp. Duo uses this for security reasons.

Here’s what you need to do:

First, import these:
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

Then, before you build your request, add this code:

SimpleDateFormat dateFormat = new SimpleDateFormat(“EEE, dd MMM yyyy HH:mm:ss Z”);
dateFormat.setTimeZone(TimeZone.getTimeZone(“UTC”));
String dateHeader = dateFormat.format(new Date());

Finally, add this to your request builder:
.header(“Date”, dateHeader)

This should solve your ‘Missing request timestamp’ error. The Duo API is pretty strict about this timestamp thing, so make sure it’s in the right format (RFC 2822).

Also, a word of advice - always check the API documentation thoroughly. Sometimes these little details can be easy to miss but cause big headaches. Good luck with your project!

4

The error you’re encountering is due to a missing timestamp in your request. Duo’s API requires a ‘Date’ header for authentication purposes. Here’s how you can modify your code to include it:

Import these additional classes:
java.text.SimpleDateFormat
java.util.Date
java.util.TimeZone

Before creating your HttpRequest, add the following code to generate the date header:

SimpleDateFormat dateFormat = new SimpleDateFormat(“EEE, dd MMM yyyy HH:mm:ss Z”);
dateFormat.setTimeZone(TimeZone.getTimeZone(“UTC”));
String dateHeader = dateFormat.format(new Date());

Then include the header in your request builder:
.header(“Date”, dateHeader)

This should resolve the ‘Missing request timestamp’ error. Remember to handle any potential exceptions when working with dates and time zones.