I am working on a project. I am using Angular 2 as a front end and firebase as backend. TO access the data from Firebase i am using express. I am using REST methodology. Now all i am facing an issue here is to rest the data after i delete anything or update anything in the List. I am posting Delete and Update code. Please let me know whether i am doing any mistake or what.
router.route('/contacts/:id').get(function(req , res) {
//Show contact based on ID which is passed as perameter
var contactId = req.params.id;
contactRef.child(contactId).once('value' , function(snapshot) {
if(snapshot.exists()) {
var contactVal = snapshot.val();
res.json(contactVal);
} else {
res.json({message : "Contact does not exist"});
}
})
}).delete(function(req,res) {
//Deletes the Contact based on the ID which we are passing as perameter
var contactId = req.params.id;
console.log(contactId);
contactRef.child(contactId).remove(function(){
console.log("deleted")
});
res.json({message : "Contact with contact id "+ contactId +" has been removed"});
}).put(function(req, res) {
//Updates the contact based on ID passed in the perameter.
var contactId = req.params.id;
console.log(req.body);
contactRef.child(contactId).update();
contactRef.child(contactId).once(req.body , function(snapshot) {
//
if(snapshot.exists()) {
console.log("Contact Id" + contactId)
var contactVal = snapshot.val();
res.json({"contact ID " : contactId} );
} else {
res.json({message : "Contact does not exist"});
}
})
})
This is the code i am using but not having any idea what to do. Please let me whether i am doing anything wrong then.
