随着即时通信（Instant Messaging）场景和客户端种类的不断丰富，多端通信已经成为普遍趋势。本文为您介绍一种使用 云数据库 Tair（兼容 Redis）在IM场景中实现多端同步的方案。消息存储模型 通常，IM系统的核心架构分为三个部分：消息管理...
message(msg):session_id=request.sid username=get_session_data(session_id,"username")if username:username=username.decode()formatted_message=f"{username}：{msg}"emit('message',formatted_message,broadcast=True)print...
Chat App is a message engine that Alibaba Cloud builds for global enterprises.Integrated with WhatsApp,ChatApp can efficiently deliver messages by using WhatsApp accounts to more than one billion WhatsApp users all over ...
Short Message Service(SMS)is a messaging service that is provided by Alibaba Cloud.SMS allows you to call API operations and SDKs or use the SMS console to send messages to recipients in more than 200 countries and regions...
音视频通信RTC（Real-Time Communication）是阿里云覆盖全球的实时音视频开发平台，提供高可用、高品质、超低延时的实时网络服务，适用于在线教育、互动娱乐、视频会议、保险定损、调度指挥等场景。使用阿里云RTC SDK，您可以在移动、Web、...
see Message trace fees.Message trace storage duration Message trace data is stored for 15 days.Trace data older than 15 days is automatically deleted and cannot be queried.Query methods Simple Message Queue(formerly MNS)...
This topic describes the"message not exist"error message that appears when you delete a message in Message Service(MNS).This topic also describes the cause and solution to the issue.Issue The following error message ...
we recommend that you do not use Base64 encoding.To send a message,use the message.setMessageBodyAsRawString method to set the message body.To receive a message,use the message.getMessageBodyAsRawString method to obtain ...
see SendMessage.message ID A message ID is used to identify a message in a queue.Message IDs are unique to a queue,but not across queues.When a message is sent to an Simple Message Queue(formerly MNS)queue,Simple Message ...
After sending messages using the Chat App Message Service API,you can receive status updates and user replies through either the Simple Message Queue(SMQ)consumption mode or the ...the system automatically creates a dedicated...
The message filtering feature of Message Service(MNS)is used to push messages of a topic to different queues by using tags.This topic describes the message filtering feature and how to configure tags for message filtering....
This topic describes how to configure the Send a Viber Message component to send a Viber message to an end user.The end user can reply to the message by using the specific features of Viber.Component information Icon Name ...
To prevent business exceptions caused by repeated message consumption,the Simple Message Queue(SMQ,formerly MNS)provides the consumption idempotence feature.This enables consumers to perform idempotent processing on the ...
This topic describes how to configure the Send Message component.You can use it to send a Short Message Service(SMS)message.Component information Icon Name Send Message Preparations Go to the canvas page of an existing ...
side navigation pane,click Channel Management.On the Channel Management page,click a channel ID or click Manage in the Actions column.On the page that appears,click Message Sending in the left-side navigation pane.Specify ...
This topic describes the terms,scenarios,and solutions related to manage the visibility timeout of a message when it is consumed by customers.Terms Visible:A visible message can be read and received by numerous consumers.A...
message billing model.MsgFrameType String Yes The message type.Valid values:message:A free-form message.You can send this type of message only within 24 hours of the last message from the user.template:A pre-approved ...
use the message.getMessageBodyAsRawString method to obtain the message body.Send a message Run the following command to run the send_message.py file:python send_message.py MyQueue1 The following output is returned:=Send ...
This topic describes how to get started with the topic-based model in the Simple Message Queue(formerly MNS)console.Prerequisites Activate Simple Message Queue(formerly MNS)and grant permissions Create a queue Log on to ...
such as"example.name".Attribute value The length of an attribute value cannot exceed 4,096 characters.Total message size The total size of all message attributes,including names,types,and values,is included in the total ...
This topic describes how to use Simple Message Queue(formerly MNS)(SMQ)SDK for Java to send a message to a queue.Prerequisites SMQ SDK for Java is installed.For more information,see Install SDK for Java.An endpoint and an ...
This topic provides an example of how to push a topic message with message attributes using the Java SDK.Background information Simple Message Queue(formerly MNS)uses a topic-based model.If a subscription is for Direct ...
template:the template message.A template message is sent based on a template that is created and approved in the Chat App Message Service console.You can send template messages at any time.message:the custom message.You ...
After sending messages,access the Chat App Message Service console to monitor your message activities,including the delivery details,status reports,and batch sending history.View message statistics Three data modules are ...
see Design an Instagram message template.An user has sent a message to your Instagram professional account.Note Conversations must be initiated by the user.You cannot send the first message.When a user sends your Instagram...
template:the template message.A template message is sent based on a template that is created and approved in the Chat App Message Service console.You can send template messages at any time.message:the custom message....
This topic explains how to send Messenger messages.Prerequisites You have created a Messenger template.For more information,see Design a Messenger template.A user has sent a message to your Facebook Page.Note Conversations...
see Sign requests.404 MessageNotExist Message not exist.The error message returned because no visible message exists in the queue.The receipt handle you provided has expired.The error message returned because you have not ...
If you plan to send messages to recipients in the Chinese mainland,you need to fulfill some additional requirements before you can begin sending messages.Specifically,you must first submit an SMS signature and message ...
This topic describes how to use the message workbench to communicate with users in real time.Prerequisites You have activated the Chat App Message Service.A channel is created.The accounts bound with the channel are ...
If the size of a message exceeds 64 KB and cannot be directly stored in a Simple Message Queue(formerly MNS)queue,you can use SMQ and Object Storage Service to transmit the message without the need to slice the message....
we recommend that you use Base64 encoding.To send a message to a topic,use the TopicMessage method to initialize the message object.In this case,the message body is Base64-encoded and stored in the Message field for ...
the retry policy.Message Format:Select the message push format.SIMPLIFIED:The message body is the user-published message without any attribute information.JSON:The message body is in JSON format,containing the message ...
see Short polling and long polling.Message invisibility duration:After a consumer receives a message,the message becomes invisible to other consumers in the queue for the specified duration.This prevents a message from ...
If the size of a message exceeds 64 KB and cannot be directly stored in a Simple Message Queue(formerly MNS)queue,you can use SMQ and Object Storage Service to transmit the message without the need to slice the message....
find the target queue,and in the Action column,choose More Send Messages.On the Quick Experience For Sending And Receiving Messages page,go to the Send Message section.Enter the Message Content and Message Delay Period,and...
Simple Message Queue(SMQ,formerly MNS)allows you to configure the delay period for a message or messages from a queue to be consumed.This topic describes common scenarios,effective rules,and methods of the delay features....
see Message visibility.Message Retention Period:the maximum duration for which a message exists in the queue.After the specified retention period,the message is deleted regardless of whether the message is received.Message...
SMS fallback refers to the mechanism where,if a message fails to reach its target under specified conditions within a designated time,an SMS is used to send the message instead.Using SMS fallback can improve message ...
you can specify the DelaySeconds parameter when you send the message.If you set the DelaySeconds parameter to a value that is greater than 0,the initial status of the message is Delayed after the message is sent to a queue...