Cannot submit a form in AngularJS to Server - angularjs

Question

I am learning AngularJS and I got a beta project to modify the exisiting model. I cannot post the below form through api. When i click on submit button, the dasboard is senseless. can some one guide me how to move further. This is Angular version:1.6.0. I have passed the ng-submit as startApproval in form element.. But it doesn't workout
index.html
<form ng-controller="RequestController" method="post" ng-submit="startApproval()">
<div class="container">
<div class="row" ng-submit>
<p class="text-info">Please create request...</p>
<!-- Left -->
<div class="col-lg-2">
<div class="panel panel-primary">
<!-- Heading -->
<div class="panel-heading">
<h4>Request</h4>
</div>
<!-- Body -->
<div class="panel-body">
<!-- process type -->
<div class="groups list list-inset">
<div class="form-group">
<label for="generic_process_id">Select process typ:</label>
<select class="form-control" id="generic_process_id" ng-model="request.approvalObject.generic_process_id" >
<option value="1" ng-show="true" >Simple Process</option>
<!-- <option ng-hide= "true" ng-disabled="true" value="2">2</option>
<option ng-hide= "true" ng-disabled= "true" value="3">3</option>
<option ng-hide= "true" ng-disabled= "true" value="4">4</option>-->
</select>
</div>
</div>
</div>
</div>
<div class="panel panel-warning">
<!-- Heading -->
<div class="panel-heading">
<h4>Priority</h4>
</div>
<!-- Body -->
<div class="panel-body">
<!-- priority type -->
<div class="groups list list-inset">
<label>Select priority:</label><br>
<div class="btn-group" ng-init="request.approvalObject.priority='1'">
<label class="btn btn-info" ng-model="request.approvalObject.priority" uib-btn-radio="'1'" uncheckable>Low</label>
<label class="btn btn-info" ng-model="request.approvalObject.priority" uib-btn-radio="'2'" uncheckable>High</label>
</div>
</div>
<hr>
</div>
</div>
</div>
<!-- Center -->
<div class="col-lg-6">
<!-- Description part-->
<div class="panel panel-success">
<!-- Heading -->
<div class="panel-heading">
<h4>Description</h4>
</div>
<pre>{{request.approvalObject|json}}</pre>
<pre>{{request.form|json}}</pre>
</div>
</div>
<!-- Right -->
<div class="col-lg-4">
<!-- value part-->
<div class="panel panel-info">
<!-- Heading -->
<div class="panel-heading">
<h4>Value</h4>
</div>
<!-- Body -->
<div class="panel-body">
<div class="groups list list-inset">
<label class="item item-input">
<input type="text" placeholder="" name="value" ng-model="request.approvalObject.value"><b class="text-primary">{{request.approvalObject.value_currency}}</b>
</label>
<br>
</div>
</div>
<div class="panel panel-info">
<!-- Heading -->
<div class="panel-heading">
<h4>Approver</h4>
</div>
<!-- Body -->
<div class="panel-body">
<div class="groups list list-insert">
<label class="item item-input">
<input type="text" placeholder="First approver name" name="approver1_name" ng-model="request.approvalObject.approver1_name">
</label>
</div>
<!-- show second approver if process type != 1 -->
<div ng-show="secondApprover" class="groups list list-insert">
<label class="item item-input">
<input type="text" placeholder="Second approver name" name="approver2_name" ng-model="request.approvalObject.approver2_name" >
</label>
</div>
</div>
</div>
</div>
</div>
<input type="submit" value="request">
</form>
Controller.js
'use strict';
export default class RequestController {
approvalObject = {};
form = {};
secondApprover = false;
$onInit() {
this.approvalObject.generic_process_id=1;
this.approvalObject.value_currency="EUR";
this.approvalObject.priority=1;
this.form.type=1;
}
/*#ngInject*/
constructor($http, $scope, socket) {
this.$http = $http;
console.log("testentry");
}
startApproval(approvalObject) {
console.log("test");
// creator_email and name from backend
approvalObject.generic_process_id=1;
approvalObject.creator_email= "test1#example.com";
approvalObject.creator_name= "test1";
approvalObject.approver1_email= approvalObject.approver1_name+"#example.com";
approvalObject.approver2_email= approvalObject.approver2_name+"#example.com";
// wip from backend
approvalObject.approval_process_status= "wip";
approvalObject.priority= "super high";
//date_of_creation: '', -->> filled by database
approvalObject.date_of_expiration = undefined;
approvalObject.sending_tool= "Web-App";
approvalObject.submitRequest=true;
this.$http.post('/api/approvals', approvalObject);
}
}

Answer 1

The startApproval(approvalObject)method in your controller expecting input parametar object. but you are calling with out passing any object to the function on ng-submit in your html
you can clear the input parameter in your controller and you can access thos variables in funtion with 'this'keyword like
this.approvalObject.generic_process_id=1;