Today, we are open sourcing gRPC, a brand new framework for handling remote procedure calls. It’s BSD licensed, based on the recently finalized HTTP/2 standard, and enables easy creation of highly performant, scalable APIs and microservices in many popular programming languages and platforms. Internally at Google, we are starting to use gRPC to expose most of our public services through gRPC endpoints as part of our long term commitment to HTTP/2.
Over the years, Google has developed underlying systems and technologies to support the largest ecosystem of micro-services in the world; our servers make tens of billions of calls per second within our global datacenters. At this scale, nanoseconds matter. Efficiency, scalability and reliability are at the core of building Google’s APIs.
gRPC is based on many years of experience in building distributed systems. With the new framework, we want to bring to the developer community a modern, bandwidth and CPU efficient, low latency way to create massively distributed systems that span data centers, as well as power mobile apps, real-time communications, IoT devices and APIs.
Building on HTTP/2 standards brings many capabilities such as bidirectional streaming, flow control, header compression, multiplexing requests over a single TCP connection and more. These features save battery life and data usage on mobile while speeding up services and web applications running in the cloud.
Developers can write more responsive real-time applications, which scale more easily and make the web more efficient. Read more about the features and benefits in the FAQ.
Alongside gRPC, we are releasing a new version of Protocol Buffers, a high performance, open source binary serialization protocol that allows easy definition of services and automatic generation of client libraries. Proto 3 adds new features, is easier to use compared to previous versions, adds support for more languages and provides canonical mapping of Proto to JSON.
The project has support for C, C++, Java, Go, Node.js, Python, and Ruby. Libraries for Objective-C, PHP and C# are in development. To start contributing, please fork the Github repositories and start submitting pull requests. Also, be sure to check out the documentation, join us on the mailing list, visit the IRC #grpc channel on Freenode and tag StackOverflow questions with the “grpc” tag.
Google has been working closely with Square and other organizations on the gRPC project. We’re all excited for the potential of this technology to improve the web and look forward to further developing the project in the open with the help, direction and contributions of the community.
Post by Mugur Marculescu, Product Manager
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