How to integrate Tencent IM with Salesforce

const getSalesforceAccessToken = async function () {
  const url = "https://{your_instance}.salesforce.com"
  const conn = new sf.Connection({ loginUrl: url })
  try {
 await conn.login("SF_EMAIL", "SF_PASSWORDSF_TOKEN")
 return { error: undefined, token: conn.accessToken }
  } catch (e) {
 return { error: e, token: undefined }
  }
}

const createCase = async function (token, caseInfo) {
  const { subject, desc, name, email } = caseInfo
  const body = {
 Subject: subject,
 Description: desc,
 SuppliedName: name,
 SuppliedEmail: email,
  }
  const headers = {
 headers: {
   "Content-Type": "application/json",
   Authorization: "Bearer " + token,
 },
  }
  const url =
 "https://{your_instance}.salesforce.com/services/data/v{api_version}/sobjects/Case"
  try {
 const result = await axios.post(url, body, headers)
 return result.data
  } catch (e) {
 return { id: undefined, success: false, error: e }
  }
}

 const generateUserSig = function () {
  const expires = 600
  const api = new TLSSigAPIv2.Api(YOUR_SDKAPPID, YOUR_SECRET)
  return api.genSig(ADMIN_USERID, expires)
}

const createGroup = async function (groupName, userId) {
  const sig = generateUserSig()
  const random = generateRandom()
  const data = { Owner_Account: userId, Type: "Public", Name: groupName }
  const url = `https://console.tim.qq.com/v4/group_open_http_svc/create_group?sdkappid=${YOUR_SDKAPPID}&identifier=${ADMIN_USERID}&usersig=${sig}&random=${random}&contenttype=json`
  try {
 const groupRes = await axios.post(url, data)
 return groupRes.data
  } catch (e) {
 return { ErrorCode: -1, ErrorInfo: e }
  }
}

const joinGroup = async function (groupId, userId) {
  const sig = generateUserSig()
  const random = generateRandom()
  const data = { GroupId: groupId, MemberList: [{ Member_Account: userId }] }
  const url = `https://console.tim.qq.com/v4/group_open_http_svc/add_group_member?sdkappid=${YOUR_SDKAPPID}&identifier=${ADMIN_USERID}&usersig=${sig}&random=${random}&contenttype=json`
  try {
 const groupRes = await axios.post(url, data)
 return groupRes.data
  } catch (e) {
 return { ErrorCode: -1, ErrorInfo: e }
  }
}

const leaveGroup = async function (groupId, userId) {
  const sig = generateUserSig()
  const random = generateRandom()
  const data = { GroupId: groupId, MemberToDel_Account: [userId] }
  const url = `https://console.tim.qq.com/v4/group_open_http_svc/delete_group_member?sdkappid=${YOUR_SDKAPPID}&identifier=${ADMIN_USERID}&usersig=${sig}&random=${random}&contenttype=json`
  try {
 const groupRes = await axios.post(url, data)
 return groupRes.data
  } catch (e) {
 return { ErrorCode: -1, ErrorInfo: e }
  }
}

const deleteGroup = async function (groupId) {
  const sig = generateUserSig()
  const random = generateRandom()
  const data = { GroupId: groupId }
  const url = `https://console.tim.qq.com/v4/group_open_http_svc/destroy_group?sdkappid=${YOUR_SDKAPPID}&identifier=${ADMIN_USERID}&usersig=${sig}&random=${random}&contenttype=json`
  try {
 const groupRes = await axios.post(url, data)
 return groupRes.data
  } catch (e) {
 return { ErrorCode: -1, ErrorInfo: e }
  }
}

<!-- tim_utilities_bar.cmp -->
<aura:component implements="flexipage:availableForAllPageTypes" access="global">
  <lightning:utilityBarAPI aura:id="utilitybar" />
</aura:component>

<!-- tim_utilities_bar.cmp -->
<aura:component implements="flexipage:availableForAllPageTypes" access="global">
  <lightning:utilityBarAPI aura:id="utilitybar" />
  <aura:attribute name="recordId" type="String" />
  <aura:attribute name="data" type="String" />
  <lightning:navigation aura:id="navService" />
  <lightning:container
    aura:id="TIM_Bar"
    src="{!$Resource.tim_bar + '/index.html'}"
  />
</aura:component>

// tim_utilities_barController.js
({
handleMessage: function(component, message, helper) {
var payload = message.getParams().payload
// Once container is ready, initUIKit
if (payload === "READY") helper.initUIKit(component, message, helper)
}
});
({
initUIKit: function (component, message, helper) {
// Get Agent's ID
var userId = $A.get("$SObjectType.CurrentUser.Id")
var message = { userId: userId }
try {
// Send the ID to the component
component.find("TIM_Bar").message(message)
} catch (err) {
console.error("Error from Utilities Bar:", err)
}
},
})


<!-- tim_utilities_bar.cmp -->
<lightning:container
aura:id="TIM_Bar"
src="{!$Resource.tim_bar + '/index.html'}"
onmessage="{!c.handleMessage}"
/>


// index.js
try {
const clientState = "READY";
LLC.sendMessage(clientState);
console.warn("Lightning Container --> TO SALESFORCE --> Sent:", clientState);
} catch (e) {
console.error("LLC NOT WORKING", e);
}
try {
LLC.addErrorHandler((error) => console.log("LLC ERROR:", error));
LLC.addMessageHandler((salesforceMessage) => {
console.warn("SALESFORCE --> Lightning Container --> Arrived:", salesforceMessage);
const app = createApp(App, {
user: salesforceMessage
});
app
.use(store)
.use(router)
.use(TUIKit)
.use(Aegis)
.use(ElementPlus)
.mount('#app');
});
} catch (e) {
console.error("Error from LLC!!", e);
}


// AssignAgent.apxt
trigger AssignAgent on Case (after update, after delete) {
     if(trigger.isUpdate){
       // Case is updating
       System.debug('Case Update Fired:');
       for(Case a : trigger.new){
         Case oldCase = trigger.oldMap.get(a.ID);
         if(String.valueOf(a.OwnerId).substring(0, 3) == '005'){
           // Owner Agent ID is changed, 005 prefix means agent ID
           System.debug('Agent invited :' + a.OwnerId);
           // Assign new owner to the Tencent Cloud IM group
           String[] data = new String[2];
           data[0] = a.Id; // Case ID is group ID
           data[1] = a.OwnerId;
           TimCallouts.joinGroup(data); //Custom callout class
         }
         // New case agent is different fromthe current agent
         if(String.valueOf(oldCase.OwnerId).substring(0, 3) == '005' && oldCase.OwnerId != a.OwnerId && String.valueOf(a.OwnerId).substring(0, 3) == '005'){
           // Delete the old agent from the group.
           // Note: A Case's very first owner will be the system owner.
           System.debug('Old Agent will be removed from group' + a.Id);
           System.debug('leaveGroup: ' + oldCase.OwnerId);
           String[] removeData = new String[2];
           removeData[0] = a.Id; // Case ID is group ID
           removeData[1] = oldCase.OwnerId;
           TIMCallouts.leaveGroup(removeData);
         }
       }
   }
   if(trigger.isDelete ){
     // Case is deleting
     System.debug('Case Delete Fired:');
     for(Case a : trigger.old){
       if(String.valueOf(a.OwnerId).substring(0, 3) == '005'){
         System.debug('Delete Group :' + a.Id);
         String[] data = new String[1];
         data[0] = a.Id;
         TimCallouts.deleteGroup(data); //Custom callout class
       }
     }
   }
 }