CODEWITHSUNDEEP
javatwilio
Paul Johnson
Paul Johnson

Reputation: 37

Unable to extract Body from Twilio Request

When I send a specific message to my Twilio number, I want to take an action depending on what that message is. The problem is, request.body() is returning the entire request, not just the body.

I've followed the Twilio guide for creating a webhook here: https://www.twilio.com/docs/sms/tutorials/how-to-receive-and-reply-java and have modified it to look at what the request body is, compare that with what I'm looking for, then respond as required.

The problem is as described, when I look at req.body(), I get more than just the body.

public static void main(String[] args) {

    int portNumber = 80;

    if(args.length > 0){
        portNumber = Integer.parseInt(args[0]);
    }

    port(portNumber);

    get("/", (req, res) -> "Hello Web");

    post("/sms", (req, res) -> {
        res.type("application/xml");
        System.out.println(req.body());

        String messageToSpend = req.body();

        if (req.body().equals("hello")){
            System.out.println("You said hello");
        }

        Body body = new Body
                .Builder(messageToSend)
                .build();
        Message sms = new Message
                .Builder()
                .body(body)
                .build();
        MessagingResponse twiml = new MessagingResponse
                .Builder()
                .message(sms)
                .build();
        return twiml.toXml();
    });
}

So, Spark starts up fine, then I set the URL accordingly in Twilio, then send a message. The message is received, but the System.out.println(req.body()); is returning this:

ToCountry=GB&ToState=&SmsMessageSid=SMc52bea78ca1df688d3d20cxxxxxxxxxx&NumMedia=0&ToCity=&FromZip=&SmsSid=SMc52bea78ca1df688d3d20cxxxxxxxxxx&FromState=&SmsStatus=received&FromCity=&Body=Hello&FromCountry=GB&To=%2B44xxxxxxxxxx&ToZip=&NumSegments=1&MessageSid=SMc52bea78ca1df688d3d20cxxxxxxxxxx&AccountSid=AC4394b4cfb2bdcefb90c592xxxxxxxxxx&From=%2B44xxxxxxxxxx&ApiVersion=2010-04-01

Whereas I would have expected (in this instance) Hello.

I'm confused because I see Hello in there, with the appropriate Body tag, but it's not parsing just that.

Upvotes: 1

Views: 423

Answers (1)

mnesarco
mnesarco

Reputation: 2798

It seems like spark parses post form data as queryParams (it is weird because the name implies GET). So

  1. Do not call req.body() to avoid earlier consumption.

  2. Call req.queryParams("Body") instead.

    public static void main(String[] args) {

    int portNumber = 80;

    if(args.length > 0){
        portNumber = Integer.parseInt(args[0]);
    }

    port(portNumber);

    get("/", (req, res) -> "Hello Web");

    post("/sms", (req, res) -> {
        res.type("application/xml");
        // Remove this: System.out.println(req.body());

        String messageToSpend = req.queryParams("Body");

        if ("hello".equals(messageToSpend)){
            System.out.println("You said hello");
        }

        Body body = new Body
                .Builder(messageToSend)
                .build();
        Message sms = new Message
                .Builder()
                .body(body)
                .build();
        MessagingResponse twiml = new MessagingResponse
                .Builder()
                .message(sms)
                .build();
        return twiml.toXml();
    });
}

Upvotes: 2

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