cloud firestore search by child value
0
I am searching a record in child level using one of the key called email ID, but it always returning null. Below is my collection data base and Query.
exports.authVerfication = functions.https.onRequest((req,res)=>{
if(req.method!=='POST'){
return res.status(500).json({
message:'Not allowed'
});
}
const p3= db.collection('Users').where('state', '==', 'Kar').get();
const p2= p3.then(snapshot =>{
if (!snapshot.exists) {
res.status(204).send({message:'No users found'});
} else {
res.status(200).send(snapshot.data());
}
})
javascript firebase google-cloud-firestore google-cloud-functions
edited Nov 22 '18 at 14:50
Frank van Puffelen
238k29382408
asked Nov 22 '18 at 13:30
Praveen Linge gowdaPraveen Linge gowda
363
add a comment |
0
I am searching a record in child level using one of the key called email ID, but it always returning null. Below is my collection data base and Query.
exports.authVerfication = functions.https.onRequest((req,res)=>{
if(req.method!=='POST'){
return res.status(500).json({
message:'Not allowed'
});
}
const p3= db.collection('Users').where('state', '==', 'Kar').get();
const p2= p3.then(snapshot =>{
if (!snapshot.exists) {
res.status(204).send({message:'No users found'});
} else {
res.status(200).send(snapshot.data());
}
})
javascript firebase google-cloud-firestore google-cloud-functions
edited Nov 22 '18 at 14:50
Frank van Puffelen
238k29382408
asked Nov 22 '18 at 13:30
Praveen Linge gowdaPraveen Linge gowda
363
What do you mean by "returning null". How do you display the results? In other words, what is after the.get()??
– Renaud Tarnec
Nov 22 '18 at 13:49
const p3= db.collection('Users').where('state', '==', 'Kar').get(); const p2= p3.then(snapshot =>{ if (!snapshot.exists) { res.status(204).send({message:'No users found'}); } else { res.status(200).send(snapshot.data()); } }) This is how i m returning an API results.
– Praveen Linge gowda
Nov 22 '18 at 13:50
Can you modify your original question with this part of the code? Thx
– Renaud Tarnec
Nov 22 '18 at 13:51
Yep, it works by adding doc.data() as you suggested. Thanks!
– Praveen Linge gowda
Nov 22 '18 at 14:10
Glad I could help. You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers. Thanks.
– Renaud Tarnec
Nov 22 '18 at 14:38
add a comment |
0
0
0
I am searching a record in child level using one of the key called email ID, but it always returning null. Below is my collection data base and Query.
exports.authVerfication = functions.https.onRequest((req,res)=>{
if(req.method!=='POST'){
return res.status(500).json({
message:'Not allowed'
});
}
const p3= db.collection('Users').where('state', '==', 'Kar').get();
const p2= p3.then(snapshot =>{
if (!snapshot.exists) {
res.status(204).send({message:'No users found'});
} else {
res.status(200).send(snapshot.data());
}
})
javascript firebase google-cloud-firestore google-cloud-functions
edited Nov 22 '18 at 14:50
Frank van Puffelen
238k29382408
asked Nov 22 '18 at 13:30
Praveen Linge gowdaPraveen Linge gowda
363
I am searching a record in child level using one of the key called email ID, but it always returning null. Below is my collection data base and Query.
exports.authVerfication = functions.https.onRequest((req,res)=>{
if(req.method!=='POST'){
return res.status(500).json({
message:'Not allowed'
});
}
const p3= db.collection('Users').where('state', '==', 'Kar').get();
const p2= p3.then(snapshot =>{
if (!snapshot.exists) {
res.status(204).send({message:'No users found'});
} else {
res.status(200).send(snapshot.data());
}
})
javascript firebase google-cloud-firestore google-cloud-functions
javascript firebase google-cloud-firestore google-cloud-functions
edited Nov 22 '18 at 14:50
Frank van Puffelen
238k29382408
asked Nov 22 '18 at 13:30
Praveen Linge gowdaPraveen Linge gowda
363
edited Nov 22 '18 at 14:50
Frank van Puffelen
238k29382408
asked Nov 22 '18 at 13:30
Praveen Linge gowdaPraveen Linge gowda
363
edited Nov 22 '18 at 14:50
Frank van Puffelen
238k29382408
edited Nov 22 '18 at 14:50
Frank van Puffelen
238k29382408
edited Nov 22 '18 at 14:50
Frank van Puffelen
238k29382408
238k29382408
asked Nov 22 '18 at 13:30
Praveen Linge gowdaPraveen Linge gowda
363
asked Nov 22 '18 at 13:30
Praveen Linge gowdaPraveen Linge gowda
363
asked Nov 22 '18 at 13:30
Praveen Linge gowdaPraveen Linge gowda
363
363
What do you mean by "returning null". How do you display the results? In other words, what is after the.get()??
– Renaud Tarnec
Nov 22 '18 at 13:49
const p3= db.collection('Users').where('state', '==', 'Kar').get(); const p2= p3.then(snapshot =>{ if (!snapshot.exists) { res.status(204).send({message:'No users found'}); } else { res.status(200).send(snapshot.data()); } }) This is how i m returning an API results.
– Praveen Linge gowda
Nov 22 '18 at 13:50
Can you modify your original question with this part of the code? Thx
– Renaud Tarnec
Nov 22 '18 at 13:51
Yep, it works by adding doc.data() as you suggested. Thanks!
– Praveen Linge gowda
Nov 22 '18 at 14:10
Glad I could help. You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers. Thanks.
– Renaud Tarnec
Nov 22 '18 at 14:38
add a comment |
What do you mean by "returning null". How do you display the results? In other words, what is after the.get()??
– Renaud Tarnec
Nov 22 '18 at 13:49
const p3= db.collection('Users').where('state', '==', 'Kar').get(); const p2= p3.then(snapshot =>{ if (!snapshot.exists) { res.status(204).send({message:'No users found'}); } else { res.status(200).send(snapshot.data()); } }) This is how i m returning an API results.
– Praveen Linge gowda
Nov 22 '18 at 13:50
Can you modify your original question with this part of the code? Thx
– Renaud Tarnec
Nov 22 '18 at 13:51
Yep, it works by adding doc.data() as you suggested. Thanks!
– Praveen Linge gowda
Nov 22 '18 at 14:10
Glad I could help. You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers. Thanks.
– Renaud Tarnec
Nov 22 '18 at 14:38
What do you mean by "returning null". How do you display the results? In other words, what is after the
.get()??– Renaud Tarnec
Nov 22 '18 at 13:49
What do you mean by "returning null". How do you display the results? In other words, what is after the
.get()??– Renaud Tarnec
Nov 22 '18 at 13:49
const p3= db.collection('Users').where('state', '==', 'Kar').get(); const p2= p3.then(snapshot =>{ if (!snapshot.exists) { res.status(204).send({message:'No users found'}); } else { res.status(200).send(snapshot.data()); } }) This is how i m returning an API results.
– Praveen Linge gowda
Nov 22 '18 at 13:50
const p3= db.collection('Users').where('state', '==', 'Kar').get(); const p2= p3.then(snapshot =>{ if (!snapshot.exists) { res.status(204).send({message:'No users found'}); } else { res.status(200).send(snapshot.data()); } }) This is how i m returning an API results.
– Praveen Linge gowda
Nov 22 '18 at 13:50
Can you modify your original question with this part of the code? Thx
– Renaud Tarnec
Nov 22 '18 at 13:51
Can you modify your original question with this part of the code? Thx
– Renaud Tarnec
Nov 22 '18 at 13:51
Yep, it works by adding doc.data() as you suggested. Thanks!
– Praveen Linge gowda
Nov 22 '18 at 14:10
Yep, it works by adding doc.data() as you suggested. Thanks!
– Praveen Linge gowda
Nov 22 '18 at 14:10
Glad I could help. You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers. Thanks.
– Renaud Tarnec
Nov 22 '18 at 14:38
Glad I could help. You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers. Thanks.
– Renaud Tarnec
Nov 22 '18 at 14:38
add a comment |
1 Answer
1
active
oldest
votes
2
By doing:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.then(snapshot =>{})
the snapshot you get is a QuerySnapshot (see doc) and there is no exists property for such an object. You should use the empty property.
As said in a comment to your question (that I deleted) you can test that the query returns a result with:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.get()
.then(snapshot => {
snapshot.forEach(doc => {
console.log(doc.id, '=>', doc.data());
});
})
.catch(err => {
console.log('Error getting documents', err);
});
answered Nov 22 '18 at 13:56
Renaud TarnecRenaud Tarnec
11.9k21532
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
2
By doing:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.then(snapshot =>{})
the snapshot you get is a QuerySnapshot (see doc) and there is no exists property for such an object. You should use the empty property.
As said in a comment to your question (that I deleted) you can test that the query returns a result with:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.get()
.then(snapshot => {
snapshot.forEach(doc => {
console.log(doc.id, '=>', doc.data());
});
})
.catch(err => {
console.log('Error getting documents', err);
});
answered Nov 22 '18 at 13:56
Renaud TarnecRenaud Tarnec
11.9k21532
add a comment |
2
By doing:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.then(snapshot =>{})
the snapshot you get is a QuerySnapshot (see doc) and there is no exists property for such an object. You should use the empty property.
As said in a comment to your question (that I deleted) you can test that the query returns a result with:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.get()
.then(snapshot => {
snapshot.forEach(doc => {
console.log(doc.id, '=>', doc.data());
});
})
.catch(err => {
console.log('Error getting documents', err);
});
answered Nov 22 '18 at 13:56
Renaud TarnecRenaud Tarnec
11.9k21532
add a comment |
2
2
2
By doing:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.then(snapshot =>{})
the snapshot you get is a QuerySnapshot (see doc) and there is no exists property for such an object. You should use the empty property.
As said in a comment to your question (that I deleted) you can test that the query returns a result with:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.get()
.then(snapshot => {
snapshot.forEach(doc => {
console.log(doc.id, '=>', doc.data());
});
})
.catch(err => {
console.log('Error getting documents', err);
});
answered Nov 22 '18 at 13:56
Renaud TarnecRenaud Tarnec
11.9k21532
By doing:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.then(snapshot =>{})
the snapshot you get is a QuerySnapshot (see doc) and there is no exists property for such an object. You should use the empty property.
As said in a comment to your question (that I deleted) you can test that the query returns a result with:
const p3 = db.collection('Users').where('state', '==', 'Kar').get();
const p2 = p3.get()
.then(snapshot => {
snapshot.forEach(doc => {
console.log(doc.id, '=>', doc.data());
});
})
.catch(err => {
console.log('Error getting documents', err);
});
answered Nov 22 '18 at 13:56
Renaud TarnecRenaud Tarnec
11.9k21532
edited Nov 22 '18 at 14:39
answered Nov 22 '18 at 13:56
Renaud TarnecRenaud Tarnec
11.9k21532
answered Nov 22 '18 at 13:56
Renaud TarnecRenaud Tarnec
11.9k21532
answered Nov 22 '18 at 13:56
Renaud TarnecRenaud Tarnec
11.9k21532
11.9k21532
add a comment |
add a comment |
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What do you mean by "returning null". How do you display the results? In other words, what is after the
.get()??– Renaud Tarnec
Nov 22 '18 at 13:49
const p3= db.collection('Users').where('state', '==', 'Kar').get(); const p2= p3.then(snapshot =>{ if (!snapshot.exists) { res.status(204).send({message:'No users found'}); } else { res.status(200).send(snapshot.data()); } }) This is how i m returning an API results.
– Praveen Linge gowda
Nov 22 '18 at 13:50
Can you modify your original question with this part of the code? Thx
– Renaud Tarnec
Nov 22 '18 at 13:51
Yep, it works by adding doc.data() as you suggested. Thanks!
– Praveen Linge gowda
Nov 22 '18 at 14:10
Glad I could help. You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers. Thanks.
– Renaud Tarnec
Nov 22 '18 at 14:38