gremlin-importer

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gremlin-importer

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A command line tool for importing graph files into a gremlin-enabled server.

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# **gremlin-importer** #

[![NPM](https://nodei.co/npm/gremlin-importer.png?downloads=true&downloadRank=true&stars=true)](https://nodei.co/npm/gremlin-importer/)

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## STATUS: Not stable ##
Under development: ETA ~ march 15, 2016

- Release 1.0 supporting CSV for edges and vertices
 - User defined values, including labels

In the near future:

- Create a solid test suite
 - Edges and vertices meta properties for second release
 - Fix messy code, and document everything
 - Migrate to Swig templates and use promises instead of callbacks
 - Migrate to ES6  **(in process: thanks to Jean-Baptiste Musso)**

## Description ##

This is a pain free data importing tool for **Gremlin enabled** databases. All you need is to provide the **vertices** and **edges** in the correct format and the gremlin-importer will populate the graph database for you. Some **rules** and **restrictions** must be **followed** in order to have a successful import process.

See the [**wiki**](https://github.com/mastayoda/gremlin-importer/wiki) for guides of how to import different formats.

## Installation ##

$ npm install -g gremlin-importer

## Usage ##

$ gremlin-importer [options] <file>

###Example

Connect to **myServer.com** port **8182**, and import a **csv** file named **vertices.csv** containing **vertices** with delimiter **#**

$ gremlin-importer -h myServer.com -p 8182 -f csv -t v vertices.csv  
    
###Options
**-h, ---help**                    
output usage information

$ gremlin-importer -h
    $ gremlin-importer --help

**-V, ---version**                
output the version number

$ gremlin-importer -V
    $ gremlin-importer --version

**-h, ---host < host >**            
The hostname or IP address of the gremlin server, by default **localhost**

$ gremlin-importer -h 128.0.0.1
    $ gremlin-importer -h mygremlinserver.com
    $ gremlin-importer --host otherServer.com

**-p, ---port <port>**            
The hostname or IP address of the gremlin server, by default **8182**

$ gremlin-importer -p 8182
    $ gremlin-importer --port 9991

**-f, ---format <format>** 
The file format, currently supported: **csv**

$ gremlin-importer -f csv
    $ gremlin-importer --format csv

**-t, ---type <type>**            
(**ONLY FOR CSV**) Type of components contained in the file, can be **e** for edges or **v** for vertices

$ gremlin-importer -t v
    $ gremlin-importer --type e

**-d, ---delimiter <delimiter>**  
(**ONLY FOR CSV**) The value delimiter

$ gremlin-importer -d ,
    $ gremlin-importer --delimiter #

**---prefix <prefix>**           
 The gremlin server groovy prefix for the default **graphTraversalSource**, by default **g**

$ gremlin-importer --prefix bigGraph

## Preamble ##

Why this tool?

- Importing data should be easy and not a painful process.
 - Currently, **Gremlin I/O** is very sensitive, it can import data in **graphML** and **Graphson** formats by default.
 - Sometimes, we don't want to convert our data into specific format, but simple ones such as **CSV**.
 - Nested file format such as **graphML** and **Graphson** need to be loaded into memory to be imported. If the amount of vertices and edges is massive, it can be imported in a stream fashion and even in parallel using flat fils such as **CSV**.

## Current file format support ##

Current supported formats are:

- [CSV](https://github.com/mastayoda/gremlin-importer/wiki/CSV-import-guide)

Future supported formats will be:

- GEXF
 - GraphML
 - DOT

## Current tested databases ##

- [TitanDB](http://thinkaurelius.github.io/titan/)

## Import Guides##

- [CSV import guide](https://github.com/mastayoda/gremlin-importer/wiki/CSV-import-guide)

## Important information ##

- Help with these tools are welcomed, please fill your pull request.
 - I will try to keep including more file formats.
 - All illustrations belong to their respective owners, and not me.
 - The fancy icons where design in [designApp.io](https://designapp.io/)
 - This package comes without any warranty, expect bugs.

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