Prereqs for Local RegTest Network => Build Tools, Docker, Dashmate

dashhive / DashJoin.js

Dash CoinJoin JavaScript (Browser & Node) SDK

MIT License

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If you already have a group of configs in ~/.dashmate/, you can destroy the nodes and begin anew with:

./dashmate/bin/dashmate group stop
./dashmate/bin/dashmate group reset
./dashmate/bin/dashmate group start

Install updates and prereqs

sudo apt update &&
  sudo apt install -y build-essential curl git

curl https://webi.sh/ | sh
source ~/.config/envman/PATH.env

webi dashcore@20.1.0 jq pathman serviceman
source ~/.config/envman/PATH.env

mkdir -p ~/bin/
pathman add ~/bin/
source ~/.config/envman/PATH.env

And reduce the amount of logging to something reasonable so that it doesn't fill up the disk from all the docker container messages: /etc/systemd/journald.conf:

[Journal]
Compress=yes
SystemMaxUse=500M
SystemKeepFree=4G
SystemMaxFileSize=50M
SystemMaxFiles=100
RuntimeMaxUse=1G
RuntimeKeepFree=500M
RuntimeMaxFileSize=1G
RuntimeMaxFiles=1000

sudo systemctl daemon-reload
sudo systemctl restart systemd-journald

Install docker as per https://github.com/webinstall/webi-installer-requests/issues/28#issuecomment-1982087878 \ with special attention to the sections including:
- groupadd docker
- --groupname=docker
- and nesting=1 (if already running within a container, such as docker)

Install dashmate as per https://github.com/dashpay/platform/issues/1736#issue-2170387832: ~/bin/dashmate-install:

#!/bin/sh
set -e
set -u

# NOTE: the latest version doesn't work with dash-cli v20.1.1
#g_rel="v1.0.0-pr.1902.1"
#g_file="dashmate-v1.0.0-pr.1902.1-f5fc6d074-linux-x64.tar.gz"
g_rel="v1.0.0-dev.9"
g_file="dashmate-v1.0.0-dev.9-d6688bef2-linux-x64.tar.gz"
if ! test -f "${g_file}"; then
   curl -L -O 'https://github.com/dashpay/platform/releases/download'/"${g_rel}"/"${g_file}"
fi
echo "Extracting ${g_file}"
tar xf "${g_file}"

Create a regtest (a.k.a. "local") network ~/bin/dashmate-regtest-init:

#!/bin/sh
set -e
set -u

(
   cd ./dashmate/
   ./bin/dashmate setup --verbose --node-count=3 --debug-logs --miner-interval=0.5m local

   ./bin/dashmate group start

   ./bin/dashmate status core --config=local_seed
   ./bin/dashmate status core --config=local_1
   ./bin/dashmate status core --config=local_2
   ./bin/dashmate status core --config=local_3
)

Cruft

Just in case I need this later:

Create some wallets (these names are part of the test code, not arbitrary yet):

git clone https://github.com/dashhive/DashJoin.js.git
pushd ./DashJoin.js/
npm ci

#!/bin/sh
set -e
set -u

for b_username in foobar psend luke han chewie; do
   ./bin/wallet-create "${b_username}"
done
./bin/dboot --make-junk-user

./bin/dboot --instance=base --create-wallets

./bin/dboot --instance=base --list-users

# creates immature balances
#for b_username in foobar psend luke han chewie; do
#    ./bin/dboot --instance=base --generate-to="${b_username}"
#done 

# takes a few minutes
./bin/dboot --dash-for-all

# takes a few seconds
./bin/dboot --create-denoms

# matures balances of the other test fixture users
./bin/dboot --grind-junk-user

# creates more coins, matures the previous balances, and imports the mature addresses
for b_username in foobar psend luke han chewie; do
   #./bin/dboot --instance=base --generate-to="${b_username}"
   ./bin/dash-cli-wallet "${b_username}" getbalances
   ./bin/dboot --instance=base --import-addresses="${b_username}"
done

# creates some denominated coins for each user
./utils/denominate --users=foobar,psend,luke,han,chewie

./bin/dboot --instance=base --all-utxos

Attempt a coinjoin. Supposed the minimum number of participants is only 2: \ Spork 22 introduced in Dash Core 0.16.0 expanded the maximum number of participants to 20 and also reduced the minimum number of participants to 2 for testnet/devnet/regtest networks. The spork was removed in Dash Core 0.17.0 which made the change permanent.

# in one screen
./src/demo.js --instance=base --username=luke

# in a second screen
./src/demo.js --instance=base --username=han

This should work to denominate in the way that ./src/demo.js expects:

./bin/dboot --split-utxos=luke

Limits:

dashhive / DashJoin.js

Prereqs for Local RegTest Network => Build Tools, Docker, Dashmate #12

Cruft