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    0.9.11 • Public • Published

    Grenache Grape implementation

    Grenache is a micro-framework for connecting microservices. Its simple and optimized for performance.

    Internally, Grenache uses Distributed Hash Tables (DHT, known from Bittorrent) for Peer to Peer connections. You can find more details how Grenche internally works at the Main Project Homepage.

    Grapes are the backbone of Grenache. They manage the DHT, the base of our virtual network.


    // Install global (run binary)
    npm install -g grenache-grape
    // Install locally to project (programmatic approach)
    npm install --save grenache-grape

    Run in Binary Mode

    grape --help
    Usage: grape --dp <dht-port> --aph <http-api-port> --bn <nodes> [--b
      -b, --bind                 Listening host                             [string]
      --dp, --dht_port           DHT listening port              [number] [required]
      --dc, --dht_concurrency    DHT concurrency                            [number]
      --dht_maxTables            DHT max tables                             [number]
      --dht_maxValues            DHT max values                             [number]
      --bn, --bootstrap          Bootstrap nodes                 [string] [required]
      --aph, --api_port          HTTP api port                   [number] [required]
      --dht_peer_maxAge, --dpa   Max age for peers in DHT                   [number]
      --cache_maxAge             Maximum cache age                          [number]
      --dnl, --dht_nodeLiveness  Interval in ms to check for dead nodes     [number]
      --check_maxPayloadSize     Limit for max payload size                 [number]
      --help                     Show help                                 [boolean]
      --version                  Show version number                       [boolean]
    // Run 3 Grapes
    grape -b --dp 20001 --dc 32 --aph 30001 --bn ','
    grape --dp 20002 --aph 40001 --dc 32 --bn ','
    grape --dp 20003 --aph 50001 --dc 32 --bn ','

    Integrate in your Code

    const Grape = require('grenache-grape').Grape
    const g = new Grape({
      // host: '', // if undefined the Grape binds all interfaces
      dht_port: 20001,
      dht_bootstrap: [
      api_port: 30001


    Class: Grape

    new Grape(options)

    • options <Object> Options for the link
      • host <String> IP to bind to. If null, Grape binds to all interfaces
      • dht_maxTables <Number> Maximum number of DHT tables
      • dht_maxValues <Number> Maximum number of DHT values
      • dht_port <Number> Port for DHT
      • dht_concurrency <Number> Concurrency for DHT
      • dht_bootstrap: <Array> Bootstrap servers
      • dht_peer_maxAge <Number> maxAge for DHT peers
      • api_port <Number> Grenache API HTTP Port

    Event: 'ready'

    Emitted when the DHT is fully bootstrapped.

    Event: 'listening'

    Emitted when the DHT is listening.

    Event: 'peer'

    Emitted when a potential peer is found.

    Event: 'node'

    Emitted when the DHT finds a new node.

    Event: 'warning'

    Emitted when a peer announces itself in order to be stored in the DHT.

    Event: 'announce'

    Emitted when a peer announces itself in order to be stored in the DHT.


    Node.JS Clients

    Ruby Clients

    CLI Clients


    npm i grenache-grape

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