deprecate ikey (#1817)

* deprecat ikey

* resolve comments

* remove unused import

* change error message

* update

* shorten error messgae

AISKU/src/Initialization.ts

@@ -189,6 +189,14 @@ export class Initialization implements IApplicationInsights {
             _core = new AppInsightsCore();
             _self.core = _core;
 
+        
+            if (!config.connectionString) {
+                _throwInternal(_core.logger,
+                    eLoggingSeverity.CRITICAL,
+                    _eInternalMessageId.InstrumentationKeyDeprecation,
+                    "Instrumentation key support will end soon, see aka.ms/IkeyMigrate");
+            }
+
             _self.snippet = snippet;
             _self.config = config;
             _getSKUDefaults();

shared/AppInsightsCore/src/JavaScriptSDK.Enums/LoggingEnums.ts

@@ -105,7 +105,8 @@ export const enum _eInternalMessageId {
     InvalidContentBlob = 102,
     TrackPageActionEventFailed = 103,
     FailedAddingCustomDefinedRequestContext = 104,
-    InMemoryStorageBufferFull = 105
+    InMemoryStorageBufferFull = 105,
+    InstrumentationKeyDeprecation = 106
 }
 
 /**
@@ -196,6 +197,8 @@ export const _InternalMessageId = createEnumStyle<typeof _eInternalMessageId>({
     InvalidContentBlob: _eInternalMessageId.InvalidContentBlob,
     TrackPageActionEventFailed: _eInternalMessageId.TrackPageActionEventFailed,
     FailedAddingCustomDefinedRequestContext: _eInternalMessageId.FailedAddingCustomDefinedRequestContext,
-    InMemoryStorageBufferFull: _eInternalMessageId.InMemoryStorageBufferFull
+    InMemoryStorageBufferFull: _eInternalMessageId.InMemoryStorageBufferFull,
+    InstrumentationKeyDeprecation: _eInternalMessageId.InstrumentationKeyDeprecation
+
 });
 export type _InternalMessageId = number | _eInternalMessageId;