即时通讯开发指南（IM）
产品概述
美信拓扑是可以一键启用多云架构的即时通讯云服务。企业可以通过集成即时通讯 IM SDK，配合使用云服务，可以为应用快速添加聊天功能。集成SDK后，典型的应用架构如下：
依靠十余年的即时通讯 IM 技术积累，美信拓扑IM SDK和服务 API 都已经过优化设计，通过更加简单的接口提供更加专业的服务。
一键启用多云架构，是美信拓扑即时通讯云服务的独特优势。
一键启用意味着，从基础功能到服务定制，均可通过控制台一键操作即开即用；而多云架构，支持应用在公有云、专有云和私有云的不同部署方式自由迁移，顺应业务发展阶段，无缝迁移无忧切换。
配合无所不能的控制台，你需要做的只有两件事，一是客户端集成美信拓扑 IM SDK，二是服务端对接美信拓扑 API 服务。本文主要介绍客户端 SDK 集成相关工作。
美信拓扑 IM SDK 跨平台的，包括移动端（iOS/Android）、PC桌面端（Linux/Windows/Mac）、Web浏览器端（包括H5）以及微信小程序等。为了最大程度的复用，并提高服务质量，美信拓扑 IM SDK 技术栈如下：
统一设计并实现二进制即时通讯协议 XSYNC ，分别实现了 C++ 版和 Javascript 版；
在 C++ 通讯库的基础上封装了全平台的 C++ SDK，并以此为基础继续封装了移动端（iOS/Android）和PC桌面端（Linux/Windows/Mac）SDK；
移动端在实现美信拓扑 DemoApp 前均封装了本地的 UI Kit 库，但 iOS 和 Android 稍有不同，iOS 通过 Object-C 封装 SDK 后进一步转化成 Swift 库，而 Android 则通过 Swig 框架和 JNI 技术直接封装了 Java 库供上层使用；
PC桌面端通过 Electron 封装 C++ 通讯库后，与 Web 浏览器端共享一套由 Vue.js 实现的 UI 组件；
Javascript 通讯库通过 WebAssembly 加密封装后提供给 Web 浏览器端（包括H5）使用；
微信小程序由于平台原因，除协议库外均与 Web 浏览器端不同，系统层调用了微信的网络和存储库，上层用的微信的 UI Kit；
新手接入指南
开始集成所有客户端之前，你需要通过美信拓扑控制台，创建应用并获取应用的 AppID 然后在各端设置。
创建账号
注册并登陆美信拓扑控制台
创建应用
登录成功后，点击创建应用
创建应用成功后，应用信息页面内获得该应用的 App ID 等重要信息，也可以点击功能页进行配置。
服务端
API 文档
私有部署安装
下载安装包 后直接在控制台按照步骤操作，亦可查看详细安装文档
客户端SDK
美信拓扑IM 客户端SDK，代号 floo。文中有 IM SDK 的地方将会用 floo 代替。
API详细文档
Web API，微信小程序API与此完全相同
平台兼容
美信拓扑支持以下平台：
iOS
兼容iOS 9.0 +
Android
兼容Android 4.1 +
Web
兼容 IE10 及以上、Chrome、Firefox、Safari等
PC
Node.js版本SDK支持Electron开发框架，但仅支持 x86_64 架构
Linux
C++版本SDK，支持 x86/x86-x64/ARM/MIPS 架构
Changelog
待补充，请参考源码更新
客户端错误码
InvalidParam
Input parameters are invalid
NotFound
Operate object is NOT exist
UserNotLogin
User have NOT signed in
UserAlreadyLogin
User have signed in using another account
UserAuthFailed
User sign in authentication failed, user name/id or password is incorrect
UserPermissionDenied
User is NOT granted for the operation.
UserNotExist
User is NOT exist
UserAlreadyExist
User has already exist
UserFrozen
User was frozen
UserBanned
User was banned to send message
UserRemoved
User account was removed
UserTooManyDevice
User sign in from too many devices
UserPasswordChanged
User password was changed from other device
UserKickedBySameDevice
User was kicked out by the same device
UserKickedByOtherDevices
User was kicked out by another device
UserAbnormal
User sign in status is abnomal, advise to sign in again
UserCancel
User cancel operation
InvalidVerificationCode
invalid verification code
InvalidRequestParameter
invalid request parameter(s)
InvalidUserNameParameter
invalud username parameter
MissingAccessToken
missing access token
CurrentUserIsInRoster
current user is in roster
CurrentUserIsInBlocklist
current user is in block list
AnswerFailed
the application does not exist or has already expired
InvalidToken
invalid token
RosterNotFriend
User was not in roster friend list
RosterBlockListExist
User was block by roster
RosterRejectApplication
User application was reject by roster
GroupServerDbError
Server db error
GroupNotExist
Group NOT Found
GroupNotMemberFound
User is NOT group member
GroupMsgNotifyTypeUnknown
Unknown msg_notify_type
GroupOwnerCannotLeave
Owner can not leave group
GroupTransferNotAllowed
Group only can transfer to group member
GroupRecoveryMode
Group is recovery mode
GroupExceedLimitGlobal
Global group count exceed limit
GroupExceedLimitUserCreate
Group count user created exceed limit
GroupExceedLimitUserJoin
Group count user joined exceed limit
GroupCapacityExceedLimit
Group capacity exceed limit
GroupMemberPermissionRequired,
This operation needs group member permission
GroupAdminPermissionRequired,
This operation needs group admin permission
GroupOwnerPermissionRequired
This operation needs group owner permission
GroupApplicationExpiredOrHandled,
Application has expired or be handled
GroupInvitationExpiredOrHandled,
Invitation has expired or be handled
GroupKickTooManyTimes
User has been kicked too many times
GroupMemberExist
User is already in group
GroupBlockListExist
User is in group block list
GroupAnnouncementNotFound
Group announcement is not found
GroupAnnouncementForbidden
Group announcement has been forbidden by system admin
GroupSharedFileNotFound
Group shared file is not found
GroupSharedFileOperateNotAllowed
Do not have permission operate shared file
GroupMemberBanned
Group banned member to send message
SignInCancelled
Sign in operation was cancelled
SignInTimeout
Sign in operation was timeout
SignInFailed
Sign in operation failed
DbOperationFailed
Datebase read/write failed
MessageInvalid
Message is invalid
MessageOutRecallTime
Out of recall permission time
MessageRecallDisabled
Disable recall message
MessageCensored
Message include censored content
MessageInvalidType
Message don't support the operation
ServerNotReachable
Server is NOT reachable
ServerUnknownError
Unknown server error
ServerInvalid
Server is invalid
ServerDecryptionFailed
Server decryption failed
ServerEncryptMethodUnsupported
Server don't support encrypt method
ServerBusy
Server is busy
ServerNeedRetry
Server need retry
ServerTimeOut
Server time out
ServerConnectFailed
Server connect failed
ServerDNSFailed
Server get DNS list failed
ServerNeedReconnected
Server changed need reconnect again
ServerFileUploadUnknownError
Server file upload unknow error
ServerFileDownloadUnknownError
Server file download unknow error
ServerInvalidLicense
Server invalid license
ServerLicenseLimit
Server license limit
ServerAppFrozen
Server App frozen
ServerTooManyRequest
Server too many request
ServerNotAllowOpenRegister
Server not allow open register
ServerFireplaceUnknownError
Server Fireplace unknown error
ServerResponseInvalid
Server response invald
ServerInvalidUploadUrl
Server invalid upload url
Last updated
Was this helpful?