Convert a existent http request from javascript to java

Question

So I have this javascript function, and I want to convert it to a java function. This is the original function:

function mailExistsCheck() {
request({
    uri: "https://iag.ksmobile.net/1/cgi/is_exist",
    method: "POST",
    headers: {
        'User-Agent': "FBAndroidSDK.0.0.1", DONE
        'Accept-Language': "en_US", DONE
        'appid': "135301",
        'ver': "3.8.20",
        'sid': "17DBB0C2B30D01B590B704501A8AC054",
        'sig': "lbOfPDrq0kJNvZX8eYZH9c0Mo7o",
        'Host': "iag.ksmobile.net",
        'Content-Type': "multipart/form-data; boundary=3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f",
        'Transfer-Encoding': "chunked",
        'Accept-Encoding': "gzip"
    },
    body: `--3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f
        Content-Disposition: form-data; name="cmversion"

        38201849
        --3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f
        Content-Disposition: form-data; name="name"

        ` + address + `
        --3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f`
}, (error, response, body) => {
    if (error) {
        console.error(error);
    }
    if (body.indexOf("12018") != -1) {

        register();

    } else {
        console.error(body);
        console.error("MAIL EXISTENCE CHECK FAILED!");
        process.exit(1);
    }
});

I'm using this library http://kevinsawicki.github.io/http-request/ to create the http request, so far I have this:

public static String mailexiste(String address) {
String contentType = HttpRequest.post("https://iag.ksmobile.net/1/cgi/is_exist")
        .userAgent("FBAndroidSDK.0.0.1")
        .header("Accept-Language", "en_US")
        .header("appid", "135301")
        .header("ver", "3.8.20")
        .header("sid", "17DBB0C2B30D01B590B704501A8AC054")
        .header("sig", "lbOfPDrq0kJNvZX8eYZH9c0Mo7o")
        .header("Host", "iag.ksmobile.net")
        .contentType("multipart/form-data; boundary=3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f")
        .acceptGzipEncoding()
        .contentType(); //Gets response header


return contentType;

I think I did the headers the right way, my only issue is that I'm having problems with the body part. I don't understand most of this requests, because I'm just starting now to learn this, and I would like to do the program by myself, but I'm really stuck on this part. Also, how do I do the if's in java? Thanks in advance!

You're better off using okhttp. Look into how to send form data with okhttp. — Ahmad
– Ahmad, Commented Mar 22, 2018 at 18:54

Tassos Bassoukos · Accepted Answer · 2018-03-22 21:05:00Z

1

Drop the boundary - unless your server is non-HTTP-compliant, any string should do
Drop the Host header, it will be added by the library automatically
Use .part(String name,String value) to add parts in a multipart:

You should get something like:

   .contentType("multipart/form-data")
   .part("cmversion", "38201849")
   .part(name, address)

answered Mar 22, 2018 at 21:05

Tassos Bassoukos

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4 Comments

pedroribeiro98 Over a year ago

Thanks! I'll try when I get home again, but seems promissing! Thanks!

pedroribeiro98 Over a year ago

I did that, but I always get "application/json; charset=utf-8" as a answer... The string always return that...

Tassos Bassoukos Over a year ago

Looks like you're reading the wrong parts of the string? I'd suggest you use something like curl or Postman to accurately replay the HTTP request, then try to map it to Java.

pedroribeiro98 Over a year ago

It works with javascript, so I think the http request is ok

MadMax · Accepted Answer · 2018-03-22 18:44:58Z

0

if() is pretty much the same in Java as in JavaScript.

answered Mar 22, 2018 at 18:44

MadMax

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1 Comment

pedroribeiro98 Over a year ago

I know that, I asked about the if's, in like, how can I determinate if the answer is error, etc... Also, my main issue is the body part

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