https://github.com/redisgraph/redisgraph-rb

A Ruby client for RedisGraph
https://github.com/redisgraph/redisgraph-rb

cypher graph-database redis redis-client redisgraph

Last synced: 15 days ago
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A Ruby client for RedisGraph

• Host: GitHub
• URL: https://github.com/redisgraph/redisgraph-rb
• Owner: RedisGraph
• License: bsd-3-clause
• Created: 2018-08-13T14:31:43.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2024-09-05T09:17:15.000Z (2 months ago)
• Last Synced: 2024-10-31T12:55:08.863Z (15 days ago)
• Topics: cypher, graph-database, redis, redis-client, redisgraph
• Language: Ruby
• Homepage: https://redisgraph.io
• Size: 40 KB
• Stars: 26
• Watchers: 7
• Forks: 4
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# redisgraph-rb

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`redisgraph-rb` is a Ruby gem client for the [RedisGraph](https://github.com/RedisLabsModules/RedisGraph) module. It relies on `redis-rb` for Redis connection management and provides support for graph QUERY, EXPLAIN, and DELETE commands.

## RedisGraph compatibility

The current version of `redisgraph-rb` is compatible with RedisGraph versions >= 1.99 (module version: 19900).

### Previous Version

For RedisGraph versions >= 1.0 and < 2.0 (ie module version: 10202), instead use and refer to

the redisgraph gem version ~> 1.0.0

which corresponds to the following docker image

`docker run -p 6379:6379 -it --rm redislabs/redisgraph:1.2.2`

## Installation

To install, run:

`$ gem install redisgraph`

Or include `redisgraph` as a dependency in your Gemfile.

## Usage

```

require 'redisgraph'

graphname = "sample"

r = RedisGraph.new(graphname)

cmd = """CREATE (:person {name: 'Jim', age: 29})-[:works]->(:employer {name: 'Dunder Mifflin'})"""

response = r.query(cmd)

response.stats

 => {:labels_added=>2, :nodes_created=>2, :properties_set=>3, :relationships_created=>1, :internal_execution_time=>0.705541}

cmd = """MATCH ()-[:works]->(e:employer) RETURN e"""

response = r.query(cmd)

response.print_resultset

--------------------------------

| e                            |

--------------------------------

| [{"name"=>"Dunder Mifflin"}] |

--------------------------------

r.delete

 => "Graph removed, internal execution time: 0.416024 milliseconds"

```

## Specifying Redis options

RedisGraph connects to an active Redis server, defaulting to `host: localhost, port: 6379`. To provide custom connection parameters, instantiate a RedisGraph object with a `redis_options` hash:

`r = RedisGraph.new("graphname", redis_options= { host: "127.0.0.1", port: 26380 })`

These parameters are described fully in the documentation for https://github.com/redis/redis-rb

## Running tests

To ensure prerequisites are installed, run the following:

`bundle install`

These tests expect a Redis server with the Graph module loaded to be available at localhost:6379

The currently compatible version of the RedisGraph module may be run as follows:

`docker run -p 6379:6379 -it --rm redislabs/redisgraph:2.0-edge`

A simple test suite is provided, and can be run with:

`rspec`