gremlin-loader
v0.0.2
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A Webpack loader for Gremlin Groovy files
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gremlin-loader
A Gremlin (Groovy) webpack loader.
gremlin-loader
allows you to define Gremlin queries in Groovy files and load them within your Node.js environment as JavaScript functions.
This loader is meant to be used server-side with babel-plugin-webpack-loaders.
This is highly experimental and shouldn't be used in production.
Installation
npm install gremlin-loader --save
To make babel-plugin-webpack-loaders
work, your .babelrc
file should resemble the following:
{
"presets": ["es2015"],
"plugins": [
["babel-plugin-webpack-loaders", {
"config": "./webpack.config.babel.js",
"verbose": false,
}]
]
}
And the corresponding webpack.config.babel.js
file:
const config = {
output: {
libraryTarget: 'commonjs2',
},
resolve: {
extensions: ['', '.js', '.gremlin']
},
module: {
loaders: [
{
test: /\.gremlin$/,
loader: 'gremlin'
}
]
}
};
export default config;
Usage
Once configured, you can do the following:
queries.gremlin file:
def fetchAllByName = { userName ->
g.V().has('name', userName)
}
application.js file:
import { fetchAllByName } from './queries';
const byNameQuery = fetchAllByName('Alice');
// byNameQuery is an object with 'gremlin' and 'bindings' keys:
// {
// gremlin: 'def fetchAllByName = { userName -> g.V().has(\'name\', userName)}\n;fetchAllByName(userName)',
// bindings: { userName: 'Alice' }
// }
When used in conjunction with gremlin-javascript:
import { createClient } from 'gremlin';
const client = createClient();
const query = fetchAllByName('Alice');
client.execute(query, (err, results) => {
// handle err or results
});