Upgrade example accordingly to the protocol changes

example/src/index.ts

 import * as _ from "lodash";
 import { connect, WalletConnection, keyStores, Near } from 'near-api-js';
 import { BrowserLocalStorageKeyStore } from "near-api-js/lib/key_stores";
-const { KeyProvisioner, ErrorType, ProvisionerConfig } = await import("../../pkg/web_client");
+const { KeyProvisioner, ProvisionerConfig } = await import("../../pkg/web_client");
 
 async function ui() {
     let keyStore = new keyStores.BrowserLocalStorageKeyStore();
     let keypair = await keyStore.getKey("testnet", account_id.toString());
     let found = accessKeys.find(key => key.public_key.toString() == keypair.getPublicKey().toString());
 
-    let config = new ProvisionerConfig("contract2.demoacc.testnet", "https://rpc.testnet.near.org", "http://servtest.relayz.io:3000");
+    let config = new ProvisionerConfig("relayz-meet.testnet", "https://rpc.testnet.near.org", "http://servtest.relayz.io:3000");
     let provisioner = new KeyProvisioner(keypair.toString(), BigInt(found.access_key.nonce), account_id.toString(), config);
 
     console.log("KeyPair: ", keypair.getPublicKey().toString());
         let participants = (document.getElementById("inp_participants") as HTMLInputElement | null)?.value;
         if (participants.length > 0) {
             console.log("Participants: " + participants);
-            provisioner.init(new Set(participants.split(",")), timeout_ms)
-                .then((id: string) => {
-                    (document.getElementById("meeting_id_label") as HTMLSpanElement).textContent = id;
-                    console.log("Meeting Id:", id);
-                    provisioner.send_keys(id, interaction_timeout_ms)
+            provisioner.init_meeting(new Set(participants.split(",")), timeout_ms)
+                .then((meeting) => {
+                    console.log("Meeting Id:", meeting.meet_id);
+                    console.log("Transaction Id:", meeting.transaction_id);
+                    (document.getElementById("meeting_id_label") as HTMLSpanElement).textContent = meeting.meet_id;
+                    provisioner.send_keys(meeting.meet_id, interaction_timeout_ms)
                         .then((secret_key) => {
                             (document.getElementById("secret_id_label") as HTMLSpanElement).textContent = secret_key;
                             console.log("Secret Key" + secret_key);
                         })
                         .then(() => console.log("Send keys is ok"))
                         .catch((err) => {
-                            console.log("Error: " + err.err_msg());
+                            console.log("Error: ", err);
                         });
                 })
                 .then(() => console.log("Init is ok"))
                 .catch((err) => {
-                    console.log("ErrorType: " + ErrorType[err.err_type()]);
-                    console.log("Error: " + err.err_msg());
+                    console.log("Error: ", err);
                 });
         }
     });
     document.getElementById("join_meeting_id").addEventListener("click", () => {
         let meeting_id = (document.getElementById("inp_meeting_id") as HTMLInputElement | null)?.value;
         if (meeting_id.length > 0) {
-            provisioner.push_to_near(meeting_id, timeout_ms).then((_id) => {
-                provisioner.get_key(meeting_id, timeout_ms).then((secret_key) => {
-                    (document.getElementById("secret_id_label") as HTMLSpanElement).textContent = secret_key;
-                    console.log("Secret Key" + secret_key);
-                }).catch((err) => {
-                    console.log("ErrorType: " + ErrorType[err.err_type()]);
-                    console.log("Error: " + err.err_msg());
-                });
-            })
-            .catch((err) => {
-                console.log("Error: " + err.err_msg());
+            provisioner.get_key(meeting_id, timeout_ms).then((secret_key) => {
+                (document.getElementById("secret_id_label") as HTMLSpanElement).textContent = secret_key;
+                console.log("Secret Key" + secret_key);
+            }).catch((err) => {
+                console.log("Error: ", err);
             });
         }
     });