Getting and sending ion checkbox value to database

Hi

I have created a form in angular that contains ion-checkboxes. When I submit the form values to the database the ion-checkboxes default to “true” rather than the value of the checkbox. My code is:

<ion-item>
<ion-label>What are you interested in?</ion-label>
</ion-item>
<ion-item>
 <ion-checkbox value="Junior Coaching" formControlName="interestedin"></ion-  
checkbox>
<ion-label>Junior Group Coaching</ion-label>
</ion-item>
<ion-item>
 <ion-checkbox value="Adult Coaching" formControlName="interestedin"></ion-
checkbox>
<ion-label>Adult Group Coaching</ion-label>
</ion-item>
<ion-item>
 <ion-checkbox value="Holiday Camps" formControlName="interestedin"></ion-
checkbox>
<ion-label>Junior Tennis Holiday Camps</ion-label>
</ion-item>
<ion-item>
 <ion-checkbox value="Individuals" formControlName="interestedin"></ion-
checkbox>
<ion-label>Individual Lessons</ion-label>
</ion-item>

So I would like them to tick as many of the 4 options as they wish, and the name of what they have ticked to appear in my database. The 4 options appear under 1 question so assuming I need to send an array to the database? Any ideas would be hugely appreciated. Many thanks

You seem to have four checkboxes all bound to the same FormControl. Which one is it supposed to listen to?

I would suggest emulating the idioms in the Angular Reactive Forms documentation.