angularfire2 - How to include the document id in Firestore collection in Angular 5

Question

I have this function that gets all the posts and I want to get the id of the post any idea how to get the id of the post or How to include the id when I add the document to the collection

get_the_posts(){
    this.Post_collection = this.afs.collection('posts'); 
    return this.Posts = this.Post_collection.valueChanges();
}

That gives me this output:

[
   { name: 'post 1 name' description: 'post description'}, 
   { name: 'post 2 name' description: 'post description'},
   { name: 'post 3 name' description: 'post description'},
]

And i want this output

[
   { id: 'm9mggfJtClLCvqeQ', name: 'post 1 name' description: 'post description'}, 
   { id: 'm9mggfJtCldsadaf', name: 'post 2 name' description: 'post description'},
   { id: 'm9mggfJtCdsasavq', name: 'post 3 name' description: 'post description'},
]

Answer 1

Waitting for answers