redisgraph-rb is a Ruby gem client for the RedisGraph module. It relies on redis-rb for Redis connection management and provides support for graph QUERY, EXPLAIN, and DELETE commands.
The current version of redisgraph-rb is compatible with RedisGraph versions >= 1.99 (module version: 19900).
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
To install, run:
$ gem install redisgraph
Or include redisgraph as a dependency in your Gemfile.
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"
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
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