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Dapr: Portable Distributed Application Runtime
Dapr is a portable, event-driven runtime that makes it easy for developers to build resilient, stateless, and stateful applications running on cloud and edge with the programming languages and developer frameworks they already know.
Go
Added on 2025年7月3日24,883
Stars1,971
ForksGo
LanguageProject Introduction
Summary
Dapr provides a set of building blocks to simplify the development of distributed applications. It runs as a sidecar to your application, exposing APIs that abstract away common distributed system challenges, allowing developers to write code in any language or framework.
Problem Solved
Building microservice and distributed applications is complex due to challenges in state management, service discovery, secrets, bindings, and observability. Dapr abstracts away these complexities using sidecar patterns, allowing developers to focus on business logic rather than infrastructure concerns.
Core Features
Service Invocation
Secure and reliable service-to-service communication, allowing calls between applications using standard protocols like gRPC and HTTP.
State Management
Manage application state across various databases and storage solutions with pluggable state stores, including consistency models.
Publish/Subscribe
Enable event-driven architectures with a publish/subscribe pattern using a variety of message brokers.
Resource Bindings
Trigger application code from external events and call external resources, integrating with databases, queues, and SaaS.
Secrets Management
Access secrets securely from secret stores like Kubernetes Secrets, Azure Key Vault, AWS Secrets Manager, etc.
Tech Stack
Go
Kubernetes
Docker
Cloud Providers (Azure, AWS, GCP)
Various Databases & Message Brokers
Use Cases
Dapr can be applied in various scenarios where building and operating distributed systems is a challenge.
Building Event-Driven Microservices
Details
Build event-driven microservices that communicate asynchronously via messages, decoupling services and improving resilience.
User Value
Simplify message handling code and switch message brokers without changing application logic.
Developing Stateful Applications
Details
Develop stateful applications (like shopping carts or workflow engines) by easily storing and retrieving state using different state stores (e.g., Redis, Cosmos DB, SQL).
User Value
Abstract away state store specific SDKs and configuration, making state management portable.
Cross-Language Service Communication
Details
Enable secure and reliable service-to-service calls between applications written in different languages running anywhere.
User Value
Avoid complex networking and serialization code for polyglot microservice landscapes.
Integrating with External Systems
Details
Integrate your application with various external services and data sources (like Kafka, Azure Blob Storage, AWS SQS) using Dapr bindings and components.
User Value
Connect to external systems via configuration, without needing to include their SDKs in your application code.
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