How to Use HTTPClient to POST FCM message. - Microsoft Community

hi,

i struggling use httpclient post fcm message. getting invald  header format exception.  can use webrequest post fcm message. want try async , await using httpclient.

please suggest me best httpclient or webrequest.

stringuri;

uri = "https://fcm.googleapis.com/fcm/send";

varpostdata = new

{

             

to = deviceid,

//to = togroup,

data = new

{

messageid = enquiryid

},

notification = new

{

body = enquirymessage,

title = fromuser,

icon = "myicon"

}

};

varserializer = newjavascriptserializer();

varjson = serializer.serialize(postdata);

using(varclient = newhttpclient())

{

               

client.defaultrequestheaders.authorization = newauthenticationheadervalue("key", "="+ fcmdetails.server_api_key);

client.defaultrequestheaders.accept.add(newmediatypewithqualityheadervalue("application/json"));

client.defaultrequestheaders.add("sender: id ", "="+ fcmdetails.project_key);

               

　

using(varr = awaitclient.postasjsonasync(newuri(uri), json))

{

stringresult = awaitr.content.readasstringasync();

sresponsefromserver= result;

}

}

hi,

firebase cloud messaging (fcm) java
http://bytefish.de/blog/fcmjava/

need work fcm support

firebase cloud messaging
https://firebase.google.com/docs/cloud-messaging/

hope helps.
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rob brown - microsoft mvp <- profile - windows , devices it : bicycle - mark twain said right.

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