SafeOneSignal.RestAPIv3.Client (nuget): One signal client targeting .Net Framework 4.5.2 and .Net Standard for .Net Core 2.0+ support.  Feel Free to contribute! :)
Keywords: OneSignal|.NetStandard2.0|.NetCore2.0|.NetFramework452|net452|netstandard2.0|netcoreapp2.0|Client|MultiFramework