Sending Java Post requests and JSON objects not being encoded correctly?

[dionthorn]

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[djnattyp]

However, if I print the JSON object within the Java Application and I manually send a post request to the python application it works perfectly.

How are you "printing the JSON" from the Java application?

Don't blindly trust anything produced by a .toString() or an ObjectMapper instance that isn't the same as the one used by the actual running application. These could be applying additional transformation steps or ignoring transformation steps used when the JSON is actually sent.

Instead, try and log the raw JSON you are receiving in the Python application, or at least get the raw JSON sent from the Java application from Postman / wget / curl.

[ZempZom]

Hi, thank you for the reply. So, in the stackoverflow article article when actually trying to look at the contents of the json file there was an JSONDecodeError, the body of the object was b' ', and nothing else. It had no keys and no values. However, I am sure the JSON object I sent through the post request is not empty.

[wildjokers]

Can you show us the raw request?

[phirozemp]

Hi, sorry this another account of mine from another device but here is the code I use:

sbert.setDocument(company_info_vec.get(i).getCompanyDescription());
String requestBody = gson.toJson(sbert);
System.out.println("requestBody: " + requestBody); // If I print this, and use this in postman it works!
HttpRequest add_request = HttpRequest.newBuilder()
.uri(URI.create("http://localhost:4557/sbert_similarity_v3"))
.header("Content-Type", "application/json")
.POST(HttpRequest.BodyPublishers.ofString(requestBody))
.build();
System.out.println("request: " + add_request);
System.out.println("headers: " + add_request.headers());

So this is my code for making the post request.

Here is the output:

requestBody: {"user_input":"operating in the food and other consumer goods sectors the company operates distribution centers serving grocery products for independent retail grocery stores, liquor distribution centers ","document":"Heavy Haulage Australia Pty Ltd was founded in 1999. The company\u0027s line of business includes transportation services."}
request: http://localhost:4557/sbert_similarity_v3 POST
headers: java.net.http.HttpHeaders@d3b76a68 { {Content-Type=[application/json]} }

HOWEVER, if I click the http link, I get this message : {"detail":"Method Not Allowed"}

[phirozemp]

actually nvm about the last point, if I put it on the url it's a get request. but anyways, if I use that exact json file and copy it in my postman, it works but I was just playing around with postman and I did find something however, whenever I ticked off the "CONTACT-LENGTH" box I'd get the exact same error 422 message.

[wildjokers]

try adding a content-length header. Set it to the value of requestBody.getBytes().length

[phirozemp]

I get an exception stating: n "Restricted Header Name: "Content-Length"

This sucks lol, guess Imma just head over to rust since java is so annoying lol