firebase realtime db get non existent child throws exception
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0
my code is like
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value").then(
(resp) =>
).catch(err => console.error("error"))
if referrals do not have child node "ABCD" it goes to exception block. How can i check the existence of it and handle rather throwing to catch?
firebase firebase-realtime-database google-cloud-functions
asked Nov 15 '18 at 7:58
VikVik
2,0901346101
add a comment |
0
my code is like
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value").then(
(resp) =>
).catch(err => console.error("error"))
if referrals do not have child node "ABCD" it goes to exception block. How can i check the existence of it and handle rather throwing to catch?
firebase firebase-realtime-database google-cloud-functions
asked Nov 15 '18 at 7:58
VikVik
2,0901346101
add a comment |
0
0
0
my code is like
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value").then(
(resp) =>
).catch(err => console.error("error"))
if referrals do not have child node "ABCD" it goes to exception block. How can i check the existence of it and handle rather throwing to catch?
firebase firebase-realtime-database google-cloud-functions
asked Nov 15 '18 at 7:58
VikVik
2,0901346101
my code is like
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value").then(
(resp) =>
).catch(err => console.error("error"))
if referrals do not have child node "ABCD" it goes to exception block. How can i check the existence of it and handle rather throwing to catch?
firebase firebase-realtime-database google-cloud-functions
firebase firebase-realtime-database google-cloud-functions
asked Nov 15 '18 at 7:58
VikVik
2,0901346101
asked Nov 15 '18 at 7:58
VikVik
2,0901346101
asked Nov 15 '18 at 7:58
VikVik
2,0901346101
asked Nov 15 '18 at 7:58
VikVik
2,0901346101
asked Nov 15 '18 at 7:58
VikVik
2,0901346101
2,0901346101
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
0
Try ;
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value", resp =>
if (resp.exists())
// Data exists
else
// No data fetched
)
answered Nov 15 '18 at 9:10
HakanCHakanC
2,3693814
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
Try ;
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value", resp =>
if (resp.exists())
// Data exists
else
// No data fetched
)
answered Nov 15 '18 at 9:10
HakanCHakanC
2,3693814
add a comment |
0
Try ;
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value", resp =>
if (resp.exists())
// Data exists
else
// No data fetched
)
answered Nov 15 '18 at 9:10
HakanCHakanC
2,3693814
add a comment |
0
0
0
Try ;
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value", resp =>
if (resp.exists())
// Data exists
else
// No data fetched
)
answered Nov 15 '18 at 9:10
HakanCHakanC
2,3693814
Try ;
var db = admin.database();
var ref = db.ref('referrals')
ref.child("ABCD").once("value", resp =>
if (resp.exists())
// Data exists
else
// No data fetched
)
answered Nov 15 '18 at 9:10
HakanCHakanC
2,3693814
answered Nov 15 '18 at 9:10
HakanCHakanC
2,3693814
answered Nov 15 '18 at 9:10
HakanCHakanC
2,3693814
answered Nov 15 '18 at 9:10
HakanCHakanC
2,3693814
2,3693814
add a comment |
add a comment |
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