What is state Id that xtext uses while saving the resource

Question

I am hosting xtext's orion editor using iframe in my angular application. I need to save the content written from my angular application side to a backend (Java application). Can anyone help me with what API calls or approach should I make from my angular side so that I can save the content written in the editor.

What I have already done :
1 .I tried extracting the content from the iframe from my angular side , but the data so extracted is partial as it only extracts data what is only visible through the iframe at once and not the whole content which one has to scroll to view .
2 . I tried making 'save' API calls that the xtext makes while saving, but it requires some stateId as its request body . I need to understand what is this state Id and how is it evaluated ?

I am making this call from my angular application

        _this.saveEditor = function(args) {
        var params = {
            requiredStateId: args.stateId
        }
        _this.saveUrl = XTEXT_URL + '/save?resource=' + args.resourceId;
        return $http({
            method: 'POST',
            url: _this.saveUrl,
            data: params
        });
    };

my request body is :

{"requiredStateId":"-80000000"}

And this is the state Id i am obtaining by making a prior load api call which.returns state Id in its response.

Answer 1

may this snipped can help you, i dont know how you can wire this up with your stuff though

require(["orion/code_edit/built-codeEdit-amd"], function() {
        require(["xtext/xtext-orion"], function(xtext) {
            var editors = xtext.createEditor({
                baseUrl: baseUrl,
                syntaxDefinition: "xtext-resources/generated/mydsl-syntax"
            }).done(function(editorViewer) {
                $("#save-button").click(function() {
                    editorViewer.xtextServices.saveResource();
                });
                $("#log-button").click(function() {
                    console.log(editorViewer.xtextServices.editorContext.getServerState());
                });
            });

        });
    });

where i do the simple log you can query and then call save manually.