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Microservices are small, independent processes that communicate with each other to form complex applications which utilize language-agnostic APIs. These services are small building blocks, highly decoupled and focused on doing a small task, facilitating a modular approach to system-building.

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Hi I have following structure : Client App (layer 1) Business logic Services ( Layer 2) Business Logic layer consists of many microservices . Access token can be created and passed from APP layer to ...
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I'm fairly new at system architecting and I'm looking for some advice. My company is revamping its order management system. Currently is a monolith system that scales very poorly and is difficult for ...
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Introduction Hi everyone, in my company we are using microservice approach and of course are trying to do it as correct as possible. There is a new requirement coming up where I have laid out a ...
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I am building 2 REST microservices: ParentService and ChildService. I need to build endpoint to fetch all Child resources related to specific Parent, so I have these URI's as options: GET /parent/{...
milosdju's user avatar
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So I am designing some microservices that communicate via messaging and event queues. However, if I update a message class, for example remove a field, this will break several participating ...
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I am looking to enhance my skills in back-end technologies and would need your help in setting up a scalable microservices architecture. Here's my project. I have N sensors that send me data (Pressure,...
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I'm aiming to create a simple event-driven system where each microservice operates with its own database. The idea is to share database changes across microservices through events. To ensure proper ...
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My company, which specializes in logistics and transportation, delegated the majority of the backend microservices to our team. All of the microservices (which our team inherited from "past ...
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One of the main guidelines I keep seeing for successfully building a microservice application is to use a separate database for each microservice. In diagrams these are usually depicted as physically ...
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We have some services (consider 10, some of them already exist and some are yet to come). All of these services have a common part where they keep track of what's being changed, and these so-called &...
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When and Service Oriented Architecture (SOA) is designed, and the ESB is changed to multiple independent service busses that talk to each other (pub/sub), does the architecture cease to be SOA? Is it ...
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I have two microservices, USERS and PRODUCTS, the second one creates objects referred to first one so it needs first to check that exists First I though in a redis cache, but then I realize that for ...
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Background I have an authentication microservice that handles the user authentication and returns 2 JWT cookies (access_token and refresh_token). I want to incorporate an API gateway that does the JWS ...
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I am fond of writing Streamlit applications (when a front-end is needed) and fastAPI backends when I just need a REST API. I've seen many blog posts where these two are combined - with the Streamlit ...
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We are going to have multiple microservices and decided to use api gateway. What we couldn't decide is if we should go for a single gateway for all of them or one for each. The reason why one for each ...
dstr's user avatar
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I have a Java Spring boot microservice in production which supports multi-tenancy and the tenants are isolated at database level. This microservice exposes REST APIs for communication. During a ...
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We are beginning to add third-party integrations that all have to do with a certain business concept. (If it helps to make things concrete, in our case it's "measurements," i.e. third-party ...
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We have a microservices application and our User management service is the source of truth for user's first and last name. But we also need these in the Reporting service, where we generate reports ...
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My company* wants to move from using long-running feature branching (~up to a few weeks) to continuous integration with trunk-based development, and to break up our monolith into microservices. We'...
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Originally posted here, moved to code review, redirected from code review back here as there is no code to review. I think the question is enough abstract to be asked here. I have a mono repo with ...
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I've just started learning to use this architecture and I'm trying to build a simple project management app. The App works such that a user after registering, creates a workspace. This Workspace is ...
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While practicing System Design, I decided to create a hypothetical proximity service (like Google Maps) with a microservice architecture. Suppose we have 3 core categories of functionality: CRUD ...
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I am working on design of a distributed system which will process some events. For simplicity lets say, multiple instance of same service will be consuming from same queue, every message will have a ...
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I'm developing a doctor-patient system that consists of two microservices, namely the "doctor" and "patient" microservices. Both doctors and patients share some common attributes, ...
omid's user avatar
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I've created a backend following a microservices architecture and now I need to implement logging. my understanding After reading some articles about this topic, I've listed below some "pretty ...
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I have two microservices, one Flask (python) and one Spring (java), they currently share a database. The Flask microservice handles processing json files (~40mb) for each user (could be 100's or 1000'...
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If you can have one event with multiple "things to process" or one event per thing to process, what is considered the best practice? Bearing in mind, the former option may involve persisting ...
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I am using spring boot with mongo db (azure cosmos db) in my microservices. Currently I have an Orders collection that stores Orders. These documents have a field userId that is null when the document ...
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Consider a web-app with 5 micro-services deployed with Docker, and a MySQL container dedicated to storing data produced from other services (shared-database pattern). How should I make the connection ...
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Our platform is growing in the number of events we're raising, and these different events are often related to one another: ProductCreated ProductUpdated ProductTakenOffSale ProductPutOnSale ...
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I have a distributed platform which allows customers to make purchases, and the items which are purchased are stored in an inventory: Sales app -> PurchaseEvent -> Inventory app The Sales app ...
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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 ...
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Overall cost and simplicity are the primary strengths of the layered architecture style. Being monolithic in nature, layered architectures don’t have the complexities associated with distributed ...
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I have an application in which a client interacts with a backend, which interacts with blockchain. Since blockchain executions can be time-consuming, they are executed asynchronously within different ...
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We are trying to implement an authorization and authentication service for our product. Now, we would have to cater to different kinds of IAM systems like SSO, LDAP and Basic Username+Password in ...
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We are working on a suite of Python 'services' each of which is basically an application that does some calculations based on a domain (data) model and returns the results. These services are designed ...
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I have a monolith implementing what is basically an ETL process, receive data from external system, orchestrate the processing of it, and then pass the results back to an external system. (The ...
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I am new to microservice. While learning about them, I was wondering what is the basic rules (the minimum) that make a microservice a microservice. I have found some rules/characteristics along the ...
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I am creating a distributed chat system with a microservice architecture where a user can log in and chat with another user. The services that I identified is a conversation service that handles chat-...
thetruth's user avatar
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I am facing this problem and would like to review my approach to it here. A Client sends an HTTP request to Service A and is expecting an answer. Service A is connected to DB A. When it receives a ...
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I was wondering if I have a microservice called, for example, Weather, and only certain people can update certain properties around the weather such as Temperature, Precipitation, and Wind. These ...
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Some decades ago working with IRC, I remember a paragraph of some RFC and now I'm looking for it. I don't remember it by memory, only a concept: When it comes to communication between two services, ...
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I'm trying to break down my dockerized monolith into a few services that can be deployed independently. Right now, I have a development environment, a staging environment and a production environment. ...
samdouble's user avatar
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I have a set of complex data, which I use on various subdomains of my project. Data are static most of the time, it changes few times per year. Currently, it's hardcoded in every project which needs ...
Pavel Štěrba's user avatar
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In a distributred system that uses parallel processing to complete tasks and I want to determine when all sub tasks have been completed, what design method or principals can i apply ? I am using ...
Manse's user avatar
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1 answer
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We have a system with a few microservices and multiple clients (Web, mobile). Currently, only one microservice (let's call it "Master MS") exposes a public API, which is used by all clients. ...
Maxim Zabolotskikh's user avatar
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I'm looking for some guidance on a design proposition I have to accomplish the following use case: We have several small microservices that each generate a unique set of "analytics" or ...
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At deployment time, I register my microservices in the following way: They register themselves in Keycloak to have an identity as a confidential client; Then they call an endpoint on a dedicated ...
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I'm trying to find the best solution to abstract the return type of the service layer. I have a controller that calls a service to create a user. The service calls a REST API and receives an HTTP ...
Achref RIAHI's user avatar
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The Microservice arcitecture is still a new thing for me to work with, so it gives me some unanswered questions. In my case each MicroService has its own database. I need a UserService to handle CRUD ...
Martin C's user avatar
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