Overview

gRPC

Stacks2.4K

Followers1.4K

Votes64

GitHub Stars43.9K

Forks11.0K

Mercury

Stacks7

Followers13

Votes0

GitHub Stars6

Forks1

Mercury vs gRPC: What are the differences?

Protocol: Mercury is a messaging protocol used for communication between different microservices within the same system, while gRPC is a remote procedure call (RPC) framework that enables client-server communication across different systems.
Serialization: Mercury uses a binary serialization format, which is compact and efficient for data transfer, while gRPC supports multiple serialization formats, such as Protobuf and JSON, offering flexibility based on the application requirements.
Language Support: Mercury is language-agnostic, allowing developers to use any programming language to implement the protocol, whereas gRPC provides support for multiple programming languages, including Java, Python, and C++, making it easier to integrate with existing code bases.
Error Handling: In Mercury, error handling mechanisms need to be implemented by developers within the messaging protocol, while gRPC has built-in support for handling errors and status codes, simplifying the development process.
Bidirectional Streaming: gRPC offers bidirectional streaming capabilities, allowing both clients and servers to send multiple messages back and forth asynchronously, which is not natively supported in Mercury.
Interoperability: gRPC provides built-in support for HTTP/2, making it easier to integrate with existing web infrastructure, whereas Mercury requires additional configurations for interoperability with standard web protocols.

In Summary, Mercury and gRPC differ in terms of protocol, serialization, language support, error handling, bidirectional streaming, and interoperability.

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Detailed Comparison

gRPC	Mercury
gRPC is a modern open source high performance RPC framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking...	A modular JSON-RPC library that allows pluggable transport layers, JSON libraries, and effect/async monads. It is used to communicate with embedded devices where the device is acting in the server role.
Simple service definition;Works across languages and platforms;Start quickly and scale;Works across languages and platforms;Bi-directional streaming and integrated auth	Free and open source license; Allow for swappable transports; Allow for swappable JSON libraries; Be usable without code generation
Statistics
GitHub Stars 43.9K	GitHub Stars 6
GitHub Forks 11.0K	GitHub Forks 1
Stacks 2.4K	Stacks 7
Followers 1.4K	Followers 13
Votes 64	Votes 0
Pros & Cons
Pros 25 Higth performance 15 The future of API 13 Easy setup 5 Contract-based 4 Polyglot	No community feedback yet
Integrations
.NET Swift Java JavaScript C++ Kotlin	MQTT Scala

What are some alternatives to gRPC, Mercury?

REST

An architectural style for developing web services. A distributed system framework that uses Web protocols and technologies.

JSON-RPC

It is a very simple protocol, defining only a few data types and commands. It allows for notifications (data sent to the server that does not require a response) and for multiple calls to be sent to the server which may be answered out of order.

Apache Dubbo

It is a high-performance, light weight, java based RPC framework. Dubbo offers three key functionalities, which include interface based remote call, fault tolerance & load balancing, and automatic service registration & discovery.

Tars

It is an open-source microservice platform. It contains a high-performance RPC framework and a service management platform. Based on Tars, you can develop a reliable microservice system efficiently. It is designed for high reliability, high performance, and efficient service management. By significantly reducing system operation work, developers can focus on business logic and meet fast changes of user requirements.

RSocket

It is a binary protocol for use on byte stream transports such as TCP, WebSockets, and Aeron. It provides a protocol for Reactive Streams semantics between client-server, and server-server communication.

Kitex

It is a high-performance and strong-extensibility Golang RPC framework that helps developers build microservices. If performance and extensibility are the main concerns when you develop microservices, it can be a good choice.

Gravity Framework

It is a modern back-end framework with full-stack capacities written in Typescript. Its main feature is to facilitate communication in a safe way between server and client by using a remote procedure call system. It will give you the power to call a function defined in the server directly from the client - like if it's just a normal Javascript function.

FRPC

It is a proto3-compatible RPC Framework that's designed from the ground up to be lightweight, extensible, and extremely performant. On average fRPC outperforms other RPC frameworks by 2-4x in an apples-to-apples comparison, and is easily able to handle more than 2 million RPCs/second on a single server.