Private Waves blockchain network setup

Step 1

Install git, Java 8 and sbt.

Step 2

Clone Waves repository.

Step 3

Edit the node/src/test/resources/genesis.example.conf file with genesis block parameters, for example like this:

  network-type: "L"  #your custom network identifier byte
  initial-balance: 10000000000000000  #initial balance in wavelets
  base-target: 153722867  #the initial complexity parameter
  average-block-delay: 60s #average block delay
  timestamp: 1500635421931 #comment this to use the current time

  # the sum of shares should be = initial-balance
    foo0 { # name for this account. Will be printed in generator's output
      seed-text: "foo0"
      nonce: 0
      amount: 10000000000000000

Step 4

Run the genesis block generator command:

sbt "node/runMain com.wavesplatform.GenesisBlockGenerator node/src/test/resources/genesis.example.conf genesis.conf"

The result will be written to the genesis.conf file (instead of genesis.conf, you can use arbitrary name), and it will look like this:

 Seed text:           foo0
 Seed:                3csAfH
 Account seed:        58zgAnBg775J6NKd4qVtfeX3m5TBMeizHNY9STvm2N87
 Private account key: FYLXp1ecxQ6WCPD4axTotHU9RVfPCBLfSeKx1XSCyvdT
 Public account key:  GbGEY3XVc2ohdv6hQBukVKSTQyqP8rjQ8Kigkj6bL57S
 Account address:     3JfE6tjeT7PnpuDQKxiVNLn4TJUFhuMaaT5
genesis {
  average-block-delay: 60000ms
  initial-base-target: 153722867
  timestamp: 1500635421931
  block-timestamp: 1500635421931
  signature: "3NELFXiQqQoYUfgLba5YAS1z8gJLc19zfzSvmYRX9eLso4zGByRGDpWdL4cooHTocyi5boFiu6H7hyW3ukVGtswP"
  initial-balance: 10000000000000000
  transactions = [
    {recipient: "3JfE6tjeT7PnpuDQKxiVNLn4TJUFhuMaaT5", amount: 10000000000000000}

If you built a fat JAR, you can generate a genesis block through it. For example:

java -cp ./node/target/waves-all-0.17.2-grpc-27-g0fab715-DIRTY.jar com.wavesplatform.GenesisBlockGenerator node/src/test/resources/genesis.example.conf

The output will be the same.

Step 5

Open a text editor and create waves-custom-network.conf (or any other name) file.

You can enable following features on your node by modifying the pre-activated-features parameter in the file.

Features Name Status
1 Minimum Generating Balance of 1000 WAVES ACTIVATED
3 Mass Transfer Transaction ACTIVATED
4 Smart Accounts ACTIVATED
5 Data Transaction ACTIVATED
6 Burn Any Tokens ACTIVATED
7 Fee Sponsorship ACTIVATED
9 Smart Assets ACTIVATED
10 Smart Account Trading ACTIVATED

If the directory parameter was not redefined, the waves folder will be created in
Linux: $XDG_DATA_HOME/waves or $HOME/.local/share/waves
Win: %APPDATA%/local/waves
Mac OS: $HOME/Library/Application Support/waves

The address-scheme-character parameter value from below must be the same as the network-type value from the step 3.

The contents of the genesis section from below is what was generated on the step 4. Instead of pasting this section, you can just write include "genesis.conf", where the genesis.conf is a filename from the step 4.

# Waves node settings
  # data storage folder

  logging-level = DEBUG

    type: CUSTOM
      address-scheme-character: "L" # this value must be the same as the `network-type` value from the step 3
      # various parameters of network consensus
      functionality {
        feature-check-blocks-period = 30
        blocks-for-feature-activation = 25
        allow-temporary-negative-until: 0
        allow-invalid-payment-transactions-by-timestamp: 0
        require-sorted-transactions-after: 0
        generation-balance-depth-from-50-to-1000-after-height: 0
        minimal-generating-balance-after: 0
        allow-transactions-from-future-until: 0
        allow-unissued-assets-until: 0
        require-payment-unique-id-after: 0
        allow-invalid-reissue-in-same-block-until-timestamp: 0
        allow-multiple-lease-cancel-transaction-until-timestamp: 0
        reset-effective-balances-at-height: 1
        allow-leased-balance-transfer-until: 0
        block-version-3-after-height: 0
        pre-activated-features = {
          2 = 0
        double-features-periods-after-height = 1000000000
        max-transaction-time-back-offset = 120m
        max-transaction-time-forward-offset = 90m
      genesis {
        average-block-delay: 60000ms
        initial-base-target: 153722867
        timestamp: 1500635421931
        block-timestamp: 1500635421931
        signature: "3NELFXiQqQoYUfgLba5YAS1z8gJLc19zfzSvmYRX9eLso4zGByRGDpWdL4cooHTocyi5boFiu6H7hyW3ukVGtswP"
        initial-balance: 10000000000000000
        transactions = [
          {recipient: "3JfE6tjeT7PnpuDQKxiVNLn4TJUFhuMaaT5", amount: 10000000000000000}
      # the contents of the above `genesis` section is what was generated on the step 4
      # please note that instead of pasting this section, you can just write
      # `include "genesis.conf"`, where the `genesis.conf` is a filename from # the step 4

    bind-address = ""
    port = 6860
    known-peers = []
    node-name = "L custom node 1"
    declared-address = ""

    password = "password"
    seed = "3csAfH"

    # Enable/disable REST API
    enable = yes
    # Network address to bind to
    bind-address = ""
    # Port to listen to REST API requests
    port = 6861
    # Hash of API key string
    api-key-hash = "H6nsiifwYKYEx6YzYD7woP1XCn72RVvx6tC1zjjLXqsu"

    # Enable block generation only in the last block is not older the given period of time
    interval-after-last-block-then-generation-is-allowed = 999d
    # Required number of connections (both incoming and outgoing) to attempt block generation. Setting this value to 0
    # enables "off-line generation".
    quorum = 0

Pay attention to the parameters waves.blockchain.custom.address-scheme-character and waves.blockchain.custom.genesis. They were copied from the result and settings of genesis generator tool. Also, look at waves.wallet.seed value. This value can be copied from "Seed" value for one of the genesis addresses from the result of genesis generator tool.

Step 6

Start your custom network node by running:

sbt "run waves-custom-network.conf"

Also, you can run already built release package (deb or jar) with this configuration file manually.

Done! You created your private Waves network consisting of one node!

Adding Nodes to Your Network

You can add more nodes to your network using parameter, specify the address and port of the existing node with the same network parameters like "". If you are making several nodes locally, then do not forget to change for the new nodes the network port, the API port, folder for the data and wallet seed waves.wallet.seed.

waves.blockchain.custom.functionality section contains parameters that allow you to enable and disable some features in your blockchain system.

Note. The developers can add new parameters in waves.blockchain.custom.functionality section, which are not present in this example; for an example of a working configuration, you can look at the waves-devnet.conf file in root folder of repository.

Check our configuration file documentation for more information.

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