Full-featured instant messaging cloud service
Users, friends, groups, messages, conversations and online status are covered by one set of services. Server REST API access, dozens of operation policies are configured on demand.
how to work
Your server manages users and data through REST APIs, and your client sends and receives messages in real time over long connections
DeepRespond Linkfunction details
Each capability has complete documentation and ready-to-run examples
user system
Create an IM account for each of your users that interfaces with your own account system.
- Server-side creation, batch creation, query, and deletion of users
- Nicknames, avatars and custom attributes
- Password login, or one-time login certificate issued by the server
- Multiple logins: maximum number of devices, limit by platform, policy when exceeded
- View login devices, kick offline, ban and unblock, global ban
Friends and Blacklists
Complete friend chain, users control who can contact them.
- Friend request, consent and rejection, postscript to request
- Friend Notes
- Add friend method: verification required, allow anyone, reject everyone
- Blacklist: Blacklisted people cannot send messages or add friends.
- The server directly establishes and disconnects friend relationships
Groups
Group chats with regular members, supporting small discussion groups to large communities.
- Group owners, administrators and ordinary members
- Invite, apply, approve, link, open group
- Group data and settings, group nicknames
- All banned, member banned, group blacklist
- Transfer group owner, dissolve group, ban illegal group at server end
Messages
Reliable and orderly messaging, multi-terminal consistency.
- Individual chats, Group chats, text, pictures, voice, video, files, locations, and custom messages
- Multi-channel synchronization, offline messaging and historical messaging
- Withdraw, edit, delete, emoticon response, top message
- @ Mentions, replies to quotes, messages pushed only to online devices
- The server sends, batches and exports messages as users
conversation
The server maintains the session list and the unread, and the device login can be consistent.
- Conversation list, unread and @ my reminder
- Read receipt, mark read vs. all read
- Session top, mark unread
- Delete conversations, clear chats
File and Rich Media
Upload, store and download message attachments, avatars and group files.
- File direct transfer object storage, large file fragment upload, breakpoint resume
- Remove shooting information and generate thumbnail images according to file header recognition format
- The download address is valid for a short time. Only users of this application can exchange it to prevent chain theft.
- Group file space, avatar public address
- Attachment retention period configurable, storage usage statistics
Chatrooms
Large-scale chat rooms with no regular members and no offline messages, suitable for live interaction.
- Create, dissolve, ban chat rooms, owners and administrators
- Messages are delivered according to priority, and the server sends and withdraws messages
- Banned, All Banned, Banned and Whitelisted
- Chat room properties, number of people online and member list
Audio & video calls
One-to-one and multi-person audio and video calls, signaling and call logs are available on this service.
- Ring, answer, reject and timeout
- Resumption of call after disconnection
- Server queries call, ends call, removes member
- Call recording and statistics, concurrent calls controlled by package
Independent RTC channel
Service server creates channel, users join directly; no friend relationship or IM group is required. Source code is provided, see document for application launch and SDK release status.
- Business channel_id, open or ticket authorization
- Publishers and subscribers, default not collected
- Member removal, blocking and asynchronous closure
- Independent channel usage and automatic billing corrections
offline push
When users are not online, notifications are delivered through the push channel of the mobile phone system.
- APNs (including VoIP), FCM, Huawei, Glory, Xiaomi, OPPO, vivo, Meizu, Hongmeng Channel
- Notification Title & Preview, App Corner, Do Not Disturb
- Update sent notifications after withdrawal (depending on channel support)
- Push device query and push statistics
Long connection and online status
WebSocket-based long connections push changes to every online device in real time.
- Heartbeat alive, recover after disconnection and complete message
- background status
- Online status query and subscription, visibility range configurable
- Number of connections and online user statistics
safety
Credentials, permissions, and auditing protect your apps and data.
- App Token authentication, Secret master/backup rotation, IP whitelist
- Console Member Roles, Two-Step Validation, Sensitive Operations Two-Step Validation
- Manage Operations All Log Operations Log
- By applied call quota and fuse gear
content security
Review messages, materials, applications and documents, and dispose of offending users and content.
- Check before sending and review after sending, custom thesaurus
- Manual review and user reporting
- Illegal records, automatic silence and ban
- The server blocks users, blocks groups, withdraws messages, deletes files
event callback
Tell your business server about changes in service in real time.
- Event callbacks for users, friends, groups, messages, chat rooms, and calls
- Send messages, add friends, synchronize callbacks before joining a group, you can reject or rewrite them
- Request signature, failed retry, delivery record, and redelivery
operation strategy
No code changes, adjust service behavior by application in console.
- Withdrawal time limit, retention period of messages and attachments, friend requirement for single chat
- Read receipt, online status, emoticon response and other function switches
- Token validity period, multi-terminal login rules
- Tenant default policy, apply separate override
client SDK
Web, Flutter/iOS, Android, Tauri, UniApp have provided channel access source code, UniApp three targets (H5 /Mini programs/ App) are accompanied by runable demo; Weixin Mini Programs channel only query. Product release and media support scope subject to platform documentation.
Start building your Chat features
Once registered, you can create your app and follow the quick start steps 10 minutes to send out the first message.