期-im系统协议消息设计

IM协议消息设作者–版本日期IMServer协议设 TCP层数据格 概念说 消息格 公共消息格 登 获取用户资 消息发 获取最近列 获取历史消 获取离线消 事件消 新消息事 用户状态变化事 用户连接状态变化事 错误码定 公共错误 登录错误 单发消息错误 IMServer协议设TCP层数据格length概念说请求消息事件响应消息消息格公共消息格msgmsgmsg{{"version":"cmd":"seq":"msg":}}{{"version":"cmd":"seq":"error_code":"msg":{}}注意{{"version":"cmd":"seq":"error_code":"msg":}{{"version":"event":"seq":"msg":}}登{{"version":"cmd":"seq":"msg":"app_key":"identifier":"userSig":}}创建应用时申请的{{"version":"cmd":"seq":"error_code":"msg":}获取用户资描述id{{"version":"cmd":"seq":"msg":}}id{{"version":"cmd":"seq":"error_code":"error_desc"msg":{"users":{"uid":"username":"}]}}消息发描述：消息发送指用户到用户的消息发送，根据不同的消息类型，content{{"version":"cmd":"seq":"msg":"content":"time":"2018-02-28"receiverId":"receiverId":"type":}}文本消息发描述{"version":"cmd":{"version":"cmd":"seq":"msg":"msg":"content":"text""time":"2018-02-"receiverId":"type":}}文本消息content消息发描述：发送消上传至文件服务器，返回的url用于实际的消息传输。上传具体参考"orignalPic":"bigPic":""smallPic":""size":"width":"height":{"version":"cmd":{"version":"cmd":"seq":"msg":"content":"time":"2018-02-28"receiverId":"type":}}原始大图小图url语音消息发描述接口上传至文件服务器，返回的url{{"version":"cmd":"seq":"msg":"content":"voice":""voice":"/voices,"time":"2018-02-28"receiverId":"type":}}语音消息content音频文件音频时小消息发描述：发送消http接口上传至文件服务器，返回的url用于实际的 小消息发送示{{"version":"cmd":"seq":"msg":"content":"":"/s,"time":"2018-02-28"receiverId":"type":}} 消息content内容参数说文件获取最近会话列{{"version":"cmd":"seq":"msg":"type":"size":"offset":}}{"version":"cmd":"seq":"error_code":"error_desc"msg":{sessions:{"u1_id":"u2_id":"group_id":"type":"last_time":"2018-03-{"u1_id":"u2_id":"group_id":"type":"last_time":"2018-03-}]]}}12获取历史消{{"version":"cmd":"seq":"msg":"uid":"msgId":"startTime":"2018-03-01"endTime":"2018-03-01"size":}}}msgId{{"version":"cmd":"seq":"error_code":"error_desc"msg":"msg":"messages":{"msgId":"sender_id":"receiver_id":"send_time":"2018-03-01"type":"1","content":"text": "read_status":"retreat":}]}}获取离线消描述：用户不时离线消息于服务器，用户上线后同步离线消息{{"version":"cmd":"seq":"msg":"size":}}{{"version":"cmd":"seq":"error_code":"error_desc"msg":{"messages":{"msgId":"sender_id":"receiver_id":"send_time":"2018-03-01"type":"1","content":"text": "read_status":"retreat":}]}}事件消新消息事{"version":"event":{"version":"event":"seq":"msg":"msgId":"content":…"time":"time":"2018-02-"senderId":"type":}}新文本消息事{{"version":"event":"seq":"msg":"msg":"msgId":"content":"text""time":"2018-02-28"senderId":"type":}}新消息事{{"version":"event":"orignalPic":"bigPic":""smallPic":""size":"width":"height":"seq":"msg":"seq":"msg":"msgId":"content":"time":"2018-02-28"senderId":"type":}}原始大图小图url新语音消息事{{"version":"event":"seq":"msg":"msgId":"content":"voice":"/voices,"time":"2018-02-28"senderId":"type":}}}语音新消息事件content音频文件音频时新小消息事 新消息事件示{{"version":"event":"seq":"msg":"msgId":"content":"":"/s,"time":"2018-02-"senderId":"type":}}小新消息事件content内容参数说文件用户状态变化事{{"version":"event":"seq":"msg":"uid":"status":}}用户连接状态变化事文件上描述：上传、语音、小、一般文件等文Content-multipart/form-type=[img|{{"error_code":"error_desc":"