README.md

    The Only Native GraphQL Database With A Graph Backend.

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    Dgraph is a horizontally scalable and distributed GraphQL database with a graph backend. It provides ACID transactions, consistent replication, and linearizable reads. It's built from the ground up to perform for a rich set of queries. Being a native GraphQL database, it tightly controls how the data is arranged on disk to optimize for query performance and throughput, reducing disk seeks and network calls in a cluster.

    Dgraph's goal is to provide Google production level scale and throughput, with low enough latency to be serving real-time user queries, over terabytes of structured data. Dgraph supports GraphQL query syntax, and responds in JSON and Protocol Buffers over GRPC and HTTP.

    Use Discuss Issues for reporting issues about this repository.

    Status

    Dgraph is at version v21.03.0 and is production-ready. Apart from the vast open source community, it is being used in production at multiple Fortune 500 companies, and by Intuit Katlas and VMware Purser.

    Quick Install

    The quickest way to install Dgraph is to run this command on Linux or Mac.

    curl https://get.dgraph.io -sSf | bash

    Install with Docker

    If you're using Docker, you can use the official Dgraph image.

    docker pull dgraph/dgraph:latest

    Install from Source

    If you want to install from source, install Go 1.13+ or later and the following dependencies:

    Ubuntu

    sudo apt-get update
    sudo apt-get install gcc make

    Build and Install

    Then clone the Dgraph repository and use make install to install the Dgraph binary to $GOPATH/bin.

    git clone https://github.com/dgraph-io/dgraph.git
    cd ./dgraph
    make install

    Get Started

    To get started with Dgraph, follow:

    Is Dgraph the right choice for me?

    • Do you have more than 10 SQL tables connected via foreign keys?
    • Do you have sparse data, which doesn't elegantly fit into SQL tables?
    • Do you want a simple and flexible schema, which is readable and maintainable over time?
    • Do you care about speed and performance at scale?

    If the answers to the above are YES, then Dgraph would be a great fit for your application. Dgraph provides NoSQL like scalability while providing SQL like transactions and the ability to select, filter, and aggregate data points. It combines that with distributed joins, traversals, and graph operations, which makes it easy to build applications with it.

    Dgraph compared to other graph DBs

    Features Dgraph Neo4j Janus Graph
    Architecture Sharded and Distributed Single server (+ replicas in enterprise) Layer on top of other distributed DBs
    Replication Consistent None in community edition (only available in enterprise) Via underlying DB
    Data movement for shard rebalancing Automatic Not applicable (all data lies on each server) Via underlying DB
    Language GraphQL inspired Cypher, Gremlin Gremlin
    Protocols Grpc / HTTP + JSON / RDF Bolt + Cypher Websocket / HTTP
    Transactions Distributed ACID transactions Single server ACID transactions Not typically ACID
    Full-Text Search Native support Native support Via External Indexing System
    Regular Expressions Native support Native support Via External Indexing System
    Geo Search Native support External support only Via External Indexing System
    License Apache 2.0 GPL v3 Apache 2.0

    Users

    Developers

    Client Libraries

    The Dgraph team maintains several officially supported client libraries. There are also libraries contributed by the community unofficial client libraries.

    Contact

    项目简介

    🚀 Github 镜像仓库 🚀

    源项目地址

    https://github.com/dgraph-io/dgraph

    发行版本 99

    Dgraph v21.09.0-rc2

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