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dgraph-io

Description

Native GraphQL Database with graph backend

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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 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.

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Status

Dgraph is at version 20.07.2 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:

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

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 to each other 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 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 maintain a number of officially supported client libraries. There are also libraries contributed by the community unofficial client libraries.

Contact

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