Hi,
Am trying to implement a case where a client sends a POST request to
subscribe to some service to a server including a "nfStatusNotificationUri"
in the JSON data.
The server responds with the subscription data, however after some time if
there is a change in the subscritpion
information in the server, the server have to send notification to the
client about the changes.
I currently do not have an idea how to do this. I have implemented the POST
subscription part but ave no idea how to implent the notification part.
Need help about how to do this. Thanks in advance.
This what i have done so far:
// server
// functions
func (m *NfInstanceDataAccess) Insertsub(nfinstancesub Subscriptions) error
{
err := db.C(COLLECTION).Insert(&nfinstancesub)
return err
}
func CreateNewSubscriptionPost(w http.ResponseWriter, r *http.Request) {
var nfinstancesub Subscriptions
id := uuid.New()
subscriptionID := id.String()
if r.Header.Get("Accept") != "application/json" {
WriteError(w, ErrNotAcceptable)
return
}
if err := json.NewDecoder(r.Body).Decode(&nfinstancesub); err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid request payload")
return
}
nfinstancesub.ID = bson.NewObjectId()
nfinstancesub.SubscriptionID = subscriptionID
if err := da.Insertsub(nfinstancesub); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
w.Header().Set("Response-Code", "201")
w.Header().Set("Response-Desc", "Success")
w.Header().Set("Cache-Control", "max-age=2592000") // 30 days
respondWithJson(w, http.StatusCreated, nfinstancesub)
}
// Main function
func main() {
http.HandleFunc("/nnrf-nfm/v1/subscriptions, CreateNewSubscriptionPost)
log.Fatal(http.ListenAndServe(":8080", nil))
}
The JSON data to request subscription including the notification
uri "nfStatusNotificationUri".
Am using mongodb to store this json data request is sent.
{
"nfStatusNotificationUri": "string",
"subscriptionID": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"validityTime": "2019-02-11T09:45:52.015Z",
"reqNotifEvents": [
"NF_REGISTERED",
"string"
],
"plmnId": {
"mcc": "string",
"mnc": "string"
},
"notifCondition": {
"monitoredAttributes": [
"string"
],
"unmonitoredAttributes": [
"string"
]
},
"reqNfFqdn": "string"
}
Thanks in advance.
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