Fast, Distributed Graph DB
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martinmr Change /commit endpoint to accept a list of preds. (#3020)
Previously the commit endpoint accepted a list of keys. Now it accepts a
map with two keys, one whose value represents the keys and the other
represents the preds.

The endpoint still accepts the old format.
Latest commit 63418d7 Feb 15, 2019
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.github/ISSUE_TEMPLATE Simplify the feature request template. Jan 17, 2019
.travis Remove dashboard specific code from Dgraph. Also build binary for rat… Dec 18, 2017
algo Fix ineffassign warnings in dgraph. (#2878) Jan 8, 2019
chunker Option handling improvements (#2991) Feb 12, 2019
codec Fix ineffassign warnings in dgraph. (#2878) Jan 8, 2019
conn Use defer statements to release locks. (#2962) Feb 1, 2019
contrib contrib/scripts/test-backup-restore.sh: removed script, no longer nee… Feb 14, 2019
dgraph Change /commit endpoint to accept a list of preds. (#3020) Feb 16, 2019
edgraph Added curl support for ACLs, pinning ACL predicates to group 1 etc (#… Feb 13, 2019
ee User more readable CIDR format for whitelists. Feb 14, 2019
gql Support for Gql variable in arrays (#2981) Feb 14, 2019
lex Fixes error found by gofuzz and reports line-column numbers for lexer… Jan 22, 2019
licenses Make OSS builds (#2790) Nov 29, 2018
posting Prevent dropping or altering of reserved predicates. (#2967) Feb 8, 2019
present Changing DGraph to Dgraph Jun 22, 2016
protos New make command to check protoc deps (#2968) Feb 11, 2019
query Sanity check for empty variables (#3021) Feb 15, 2019
raftwal Set the Prefix option during iteration (#2780) Nov 26, 2018
schema Prevent dropping or altering of reserved predicates. (#2967) Feb 8, 2019
static Add note and gif about loader performance. Dec 23, 2016
systest Add 21million query set to test suite (#3013) Feb 14, 2019
task Switch Dgraph back to Apache 2.0 (#2652) Oct 11, 2018
tok Fuzzy match support (#2916) Feb 12, 2019
types Sanity check for empty variables (#3021) Feb 15, 2019
vendor add opencensus deps to vendor using govendor (#2989) Feb 11, 2019
wiki docs: Update inequality and GraphQL Variable examples. (#3016) Feb 16, 2019
worker Fix bug retrieving reverse edges of non-list uid predicates. (#3005) Feb 13, 2019
x Added curl support for ACLs, pinning ACL predicates to group 1 etc (#… Feb 13, 2019
xidmap Optimize XidtoUID map used by live and bulk loader (#2998) Feb 11, 2019
z Added curl support for ACLs, pinning ACL predicates to group 1 etc (#… Feb 13, 2019
.codeclimate.yml See what code climate can do for Dgraph Jan 3, 2017
.gitignore Add idea file to gitignore Mar 27, 2018
.golangci.yml add line length lt 100 check to linter (#2865) Jan 3, 2019
.travis.yml Bump Travis versions (#2683) Oct 20, 2018
CHANGELOG.md Update CHANGELOG with links to commit changes for each release. Feb 12, 2019
CODE_OF_CONDUCT.md Add Code of Conduct file. (#2779) Nov 26, 2018
CONTRIBUTING.md More testing improvements (#2905) Jan 16, 2019
LICENSE.md docs: Add hyperlink to license directory in LICENSE.md. Jan 21, 2019
Makefile Add make install_oss target. Set GOPATH if not set. Jan 29, 2019
README.md Update README.md Feb 7, 2019
logo.png Update README with logo, and version. Nov 18, 2017
test.sh contrib/scripts/test-backup-restore.sh: removed script, no longer nee… Feb 14, 2019

README.md

Fast, Transactional, Distributed Graph Database.

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Dgraph is a horizontally scalable and distributed graph database, providing ACID transactions, consistent replication and linearizable reads. It's built from ground up to perform for a rich set of queries. Being a native graph 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-like query syntax, and responds in JSON and Protocol Buffers over GRPC and HTTP.

Status

Dgraph is at version 1.0.x 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.

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, you can use go get to install to $GOPATH/bin.

go get -v github.com/dgraph-io/dgraph/dgraph

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 ids?
  • Do you have sparse data, which doesn't correctly 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

Unofficial Client Libraries

The Dgraph team maintain a number of officially supported client libraries. The following libraries are contributed by the community.

C# .NET

Dart

Elixir

Contact