javananohttpd

Retrieve HTTP Body in NanoHTTPD


How can I retrieve the HTTP POST request body when implementing NanoHTTPDs serve method?

I've tried to use the getInputStream() method of IHTTPSession already, but I always get an SocketTimeoutException when using it inside of the serve method.


Solution

  • In the serve method you first have to call session.parseBody(files), where files is a Map<String, String>, and then session.getQueryParameterString() will return the POST request's body.

    I found an example in the source code. Here is the relevant code:

    public Response serve(IHTTPSession session) {
        Map<String, String> files = new HashMap<String, String>();
        Method method = session.getMethod();
        if (Method.PUT.equals(method) || Method.POST.equals(method)) {
            try {
                session.parseBody(files);
            } catch (IOException ioe) {
                return new Response(Response.Status.INTERNAL_ERROR, MIME_PLAINTEXT, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage());
            } catch (ResponseException re) {
                return new Response(re.getStatus(), MIME_PLAINTEXT, re.getMessage());
            }
        }
        // get the POST body
        String postBody = session.getQueryParameterString();
        // or you can access the POST request's parameters
        String postParameter = session.getParms().get("parameter");
    
        return new Response(postBody); // Or postParameter.
    }