I can query my mongodb collection to get the ipv4Addresses based on the
nfType and the minimum distance using the command line query
db.nfinstancesdb.aggregate([
{
"$match": {
"nfType": "AMF"
}
},
{
"$unwind": "$ipv4Addresses"
},
{
$group: {
"_id": "$distance",
"ipv4Addresses": {
"$addToSet": "$ipv4Addresses"
}
}
},
{
"$sort": {
"_id": 1
}
},
{
"$limit": 1
}])
This give the output am expecting as
[{"_id": 10,"ipv4Addresses": ["172.16.0.11","172.16.0.10"]}]
How can I write the bson form of the above query on Go?
I did in the function below but am getting all the ipv4Addresses instead of
the above result.
func (m *NfInstanceDataAccess) FindIp(nfType string) ([]NfInstance, error) {
var ip []NfInstance
findQ := bson.M{"nfType": nfType}
filter := bson.M{"ipv4Addresses": 1}
err := db.C(COLLECTION).Find(findQ).Select(filter).All(&ip)
if err != nil {
return ip, err
}
return ip, nil}
My collection has the following items
{
"nfInstanceID": "1",
"nfType": [
"AMF"
],
"nfStatus": [
"REGISTERED"
],
"ipv4Addresses": [
"172.16.0.10"
],
"distance": 10
},
{
"nfInstanceID": "2",
"nfType": [
"UPF"
],
"nfStatus": [
"REGISTERED"
],
"ipv4Addresses": [
"172.16.0.20"
],
"distance": 20
},
{
"nfInstanceID": "3",
"nfType": [
"AMF"
],
"nfStatus": [
"REGISTERED"
],
"ipv4Addresses": [
"172.16.0.30"
],
"distance": 30
},
{
"nfInstanceID": "4",
"nfType": [
"AMF"
],
"nfStatus": [
"REGISTERED"
],
"ipv4Addresses": [
"172.16.0.11"
],
"distance": 10
}
And I am expecting the same or similar output.
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