Questions tagged [messaging]
The messaging tag has no summary.
107 questions
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CQRS: Multiple entry points for a single command
I’m trying to follow the Clean Architecture and CQRS within an application that, let’s say, create a product.
To achieve this, the application has 3 adapters, one for reading a file, another for ...
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4
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242
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Programming language independent semantic validation of message protocol
I have a proprietary protocol that describes the exchange of messages of two participants (applications) via a messaging broker (mqtt). A participant is of type A or B. Each type is allowed to send ...
- 29
2
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1
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487
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Cons of sending content-available=true and content-priority=high in BULK FCM messages?
While sending FCMs, I've noticed these two headers are important(message won't go without these headers), but what could be the cons of sending both of these headers as it is? I tried to read about ...
- 191
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153
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Is RabbitMQ suitable for allowing SaaS customers to subscribe to events?
I work on a SaaS system which is generally a single-tenant environment. Customers (whom the SaaS instances are for) would like a way to subscribe to events, such as updates of certain data entities. ...
- 101
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126
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sync over async in K8S
We build up a microservice architecture which is called from above by a REACT SPA. All is deployed in the AWS Cloud, that is to say in an AWS EKS (K8S). We have at most 600 users in parallel.
Do you ...
- 101
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1
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453
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Should I update local storage every new event in a chat app? [closed]
I am building a chat app using flutter and sqflite. In the chats screen we display a list of chats, each contain name and last message. Every time a user sends a message, should I update the last ...
- 105
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2
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2k
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How to design inter-service communication with notifications microservice?
I'm creating an application based on the microservice architecture and stuck on notifications microservice design. Basically it should be a service that notifies users about events happening in the ...
- 131
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157
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Kafka : Is sending some payload data (identifier) in headers considered a good practive?
I am wondering about some architectonical decisions in our system.
There are situations where we are sending import business events through kafka which should be performed in every case.
All the cases ...
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1
vote
1
answer
102
views
Efficient Schema For Pairing Styling Metadata with Text Fields in JSON Messages
I am trying to design a schema for pairing styling data with text. However, I need it to pair styling metadata to only one part of a larger string.
For example:
"This is a test string"
I ...
- 143
3
votes
2
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274
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How to propagate seldomly changing data in a distributed system
We store data – some kind of metadata like car manufacturers or types of computer parts – in one of our applications.
This data changes rarely. Let's say it changes once every two weeks.
This data is ...
- 207
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4
answers
488
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GUID possible misuse as short term message id
I have an distributed application that sends P2P messages parallel (for fault tolerance) across different channels.
This mandates an filter to avoid multiple receivement of the same message. Therfor I ...
- 231
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1
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118
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How to engineer a "message read/message not read" fucntionality like the tchat apps or forums ones?
I am challenged to rebuild a support ticket manager app currently on legacy PHP code.
I plan to migrate to microservices + JS frontend technology like VueJS or React.
One of the app's page is a ...
- 103
2
votes
1
answer
655
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Internal/external commands in CQRS
I have several questions related to CQRS in eventually consistent systems with a need of resilient Command/Event processing.
Is it OK to have external/public synchronous Commands (triggered by API, e....
- 121
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0
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67
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How to handle maintenance to your queuing server (e.g. rabbitMQ)
I'm new to queuing and looking into options that could be done operationally. I'm sorry if I have any conceptual misunderstandings related to queuing.
I watched this video where the presenter made a ...
- 341
-1
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1
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951
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Chat app database architecture [closed]
I understand that chat apps are a fairly well understood and architected thing. I’m looking for some best practices advice on structuring the backend, particularly as it relates to user inboxes.
One ...
- 255