Hi,
I've been trying for weeks to get a proper chaining of db calls with
angularfire2 and displaying them. I always come back to the same solution
with the same errors.
ts code
this.user.subscribe(user => {
this._lists = this.db.list('/user/' + user.uid);
// this.lists = this.db.list('/starLists/');
this.lists = this.db.list('/user/' + user.uid, {query: {orderByKey:
true}})
.map((itemKeys) => {
return itemKeys.map(key => {
key.data = this.db.list(`'/starLists/${key.$key}`);
return key;
})
});
});
html
<ul>
<li *ngFor="let list of lists | async">
{{ list | json }}
</li>
</ul>
DB
{
"starLists" : {
"-KoJUYG0hZc3lt5AvQN-" : {
"name" : "Test",
"stars" : 0
},
"-KoRQF4wg0OFxaLtPW5v" : {
"name" : "list2",
"stars" : 0
}
},
"user" : {
"zKzdYljl5Lb0N0lqzz7hJZO6xB72" : {
"-KoJUYG0hZc3lt5AvQN-" : true,
"-KoRQF4wg0OFxaLtPW5v" : true
}
}
}
Error
ERROR TypeError: Converting circular structure to JSON
When logging it seems to turn out ok, but I'm pretty new to Obeservables,
does anyone have any input?
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