fix: update examples

Author: JKRhb

example/coaps_readproperty.dart

@@ -45,7 +45,7 @@ Future<void> main(List<String> args) async {
   final wot = await servient.start();
 
   const thingDescriptionJson = {
-    "@context": "http://www.w3.org/ns/td",
+    "@context": "https://www.w3.org/2022/wot/td/v1.1",
     "title": "Test Thing",
     "base": "coaps://californium.eclipseprojects.io",
     "security": ["psk_sc"],

example/complex_example.dart

@@ -10,7 +10,7 @@ import "package:dart_wot/dart_wot.dart";
 
 const thingDescriptionJson = {
   "@context": [
-    "http://www.w3.org/ns/td",
+    "https://www.w3.org/2022/wot/td/v1.1",
     {"@language": "de", "coap": "http://www.example.org/coap-binding#"},
   ],
   "title": "Test Thing",

example/core_link_format_discovery.dart

@@ -8,30 +8,35 @@
 
 import "package:dart_wot/dart_wot.dart";
 
-const propertyName = "status";
-const actionName = "toggle";
-
 Future<void> main(List<String> args) async {
   final servient = Servient(clientFactories: [CoapClientFactory()]);
 
   final wot = await servient.start();
 
-  // TODO(JKRhb): Replace with an endpoint providing CoRE Format Links pointing
-  //              to TDs. At the moment, this URI is just for illustrative
-  //              purpose and will not return actual Thing Description links.
-  final discoveryUri = Uri.parse("coap://coap.me/.well-known/core");
+  final discoveryUri =
+      Uri.parse("coap://plugfest.thingweb.io/.well-known/core");
 
   await for (final thingDescription
       in wot.discover(discoveryUri, method: DiscoveryMethod.coreLinkFormat)) {
+    print(thingDescription.title);
+
+    if (thingDescription.title != "Smart-Coffee-Machine") {
+      continue;
+    }
+
     final consumedThing = await wot.consume(thingDescription);
 
     try {
-      final statusBefore = await consumedThing.readProperty(propertyName);
+      final statusBefore =
+          await consumedThing.readProperty("allAvailableResources");
       print(await statusBefore.value());
 
-      await consumedThing.invokeAction(actionName);
+      final result = await consumedThing.invokeAction("makeDrink");
+
+      print(await result.value());
 
-      final statusAfter = await consumedThing.readProperty(propertyName);
+      final statusAfter =
+          await consumedThing.readProperty("allAvailableResources");
       print(await statusAfter.value());
     } on Exception catch (e) {
       print(e);

example/http_basic_authentication.dart

@@ -11,7 +11,7 @@ import "package:dart_wot/dart_wot.dart";
 const username = "username";
 const password = "password";
 const thingDescriptionJson = {
-  "@context": ["http://www.w3.org/ns/td"],
+  "@context": "https://www.w3.org/2022/wot/td/v1.1",
   "title": "Test Thing",
   "id": "urn:test",
   "base": "https://httpbin.org",

example/mqtt_example.dart

@@ -87,7 +87,9 @@ Future<void> main(List<String> args) async {
   await consumedThing.invokeAction("toggle", input: actionInput);
   await subscription.stop();
 
-  await consumedThing.invokeAction("toggle", input: actionInput);
+  final actionInput2 = "Bye World".asInteractionInput();
+
+  await consumedThing.invokeAction("toggle", input: actionInput2);
   await consumedThing.readAndPrintProperty("status");
   print("Done!");
 }