Merge pull request #16 from Permissionless-Software-Foundation/ct-unstable

fix(createOrder()): Updating wallet UTXOs before checking for funds

README.md

@@ -1,34 +1,59 @@
 # bch-dex
 
-[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](http://standardjs.com) [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](http://standardjs.com) [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release) [![Join the chat at https://gitter.im/Permissionless-Software-Foundation/psf-dex-dev](https://badges.gitter.im/Permissionless-Software-Foundation/psf-dex-dev.svg)](https://gitter.im/Permissionless-Software-Foundation/psf-dex-dev?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
-This is a prototype web service that monitors the [P2WDB](https://github.com/Permissionless-Software-Foundation/ipfs-p2wdb-service) for trading signals, to trade BCH and SLP tokens. It's inspired by the [SWaP Prototype](https://github.com/vinarmani/swap-protocol/blob/master/swap-protocol-spec.md).
+This is a prototype web service that monitors the [P2WDB](https://github.com/Permissionless-Software-Foundation/ipfs-p2wdb-service) for trading signals, to trade BCH and SLP tokens. It's inspired by the [SWaP Protocol](https://github.com/vinarmani/swap-protocol/blob/master/swap-protocol-spec.md).
 
-This repository was forked from [ipfs-torlist-service](https://github.com/Permissionless-Software-Foundation/ipfs-torlist-service).
-
-## Development Notes
+This repository contains the back end code. The user interface is contained in the [bch-dex-ui](https://github.com/Permissionless-Software-Foundation/bch-dex-ui) repository.
 
 **Warning**: This repository is under active development. Things will be constantly changing and breaking.
 
-### Road Map:
+## Participate
+This is an open source project, and we encourage other JavaScript developers to participate in its creation and maintenance. We have two chat rooms for the community:
+- [Telegram Channel](https://t.me/psf_dex_dev)
+- [Gitter Channel](https://gitter.im/Permissionless-Software-Foundation/psf-dex-dev)
 
-- Phase 1: MVP (single user)
-  - Move tokens or BCH for sale to temporary address.
-  - Accept input from user:
-    - Submit Signal message to P2WDB for new buy/sell order.
-    - Check UTXO status before submitting Payment message.
-  - React to webhook when new Offers come in.
-    - Add and track new Offers in MongoDB.
-    - Process Payment signals:
-      - Checking transaction for compatibility
-      - Broadcast/close trades managed by this app.
-- Phase 2: Build single-user web app
-  - _Make_ buy or sell orders.
-  - Browse Offers on the market.
-  - _Take_ buy or sell orders.
-- Phase 3: Multi-user
-  - Configure REST API as an IPFS Service that can offer services to multiple users.
-  - Update web app to display and select available SWaP services over IPFS.
+## Installation
+Running the DEX requires composition of these different software packages:
+- bch-dex - This repository is the back end software that tracks trade data on the network, generates [Offers and Counter Offers](https://github.com/Permissionless-Software-Foundation/bch-dex/tree/ct-unstable/dev-docs#definitions), and finalizes trades by accepting Counter Offers.
+- [bch-dex-ui](https://github.com/Permissionless-Software-Foundation/bch-dex-ui) is a [Gatsby](https://www.gatsbyjs.com/) web app and user interface (UI) for bch-dex.
+- [P2WDB](https://github.com/Permissionless-Software-Foundation/ipfs-p2wdb-service) is a censorship-resistant database used to communicate trade data between peers running bch-dex.
+- [IPFS](https://ipfs.io/) is a censorship-resistant network for communicating data over the internet.
+- [MongoDB](https://www.mongodb.com/) is a database used by both P2WDB and bch-dex to store and manage local data.
+
+The above software is orchestrated using [Docker](https://www.docker.com/) and Docker Compose. The target operating system is Ubuntu 20+, and the target hardware is amd64 (normal desktop PCs) and the arm64 (Raspberry Pi 4). Trying to operate this software on other operating systems or hardware is possible, but not supported.
+
+Instructions for setting up Node.js, Docker, and Docker Compose can be found in [this Gist](https://gist.github.com/christroutner/a39f656850dc022b60f25c9663dd1cdd). Walk-through videos can also be found on the [PSF Videos page](https://psfoundation.cash/video/).
+
+Building the Docker containers and getting the app working involve these steps:
+- Follow the direction in [this Gist](https://gist.github.com/christroutner/a39f656850dc022b60f25c9663dd1cdd) to install Node.js, Docker, and Docker Compose.
+- Clone the repository with `git clone https://github.com/Permissionless-Software-Foundation/bch-dex` and enter it with `cd bch-dex`.
+- Install dependencies by running `npm install`
+- Create a wallet by executing the [create-wallet.js script](./production/scripts/create-wallet.js) with `node create-wallet.js`
+- Move the `wallet.json` file to the [x86 Docker folder](./production/docker/bch-dex) or the [RPi Docker folder](./production/rpi-docker/bch-dex/) depending on your hardware target.
+- Change directory to the `docker` or `rpi-docker` folder depending on your hardware target.
+- Build the Docker containers with `docker-compose build --no-cache`.
+- Start the Docker containers with `docker-compose up -d`
+- Wait for the containers to run for about a minute, then bring them down with `docker-compose down`. That will create the needed folders in `production/data`.
+- Copy the `swarm.key` into the `production/data/go-ipfs/data/` directory. This will allow the IPFS node to connect to the PSF private network.
+- Bring the containers back up with `docker-compose up -d`.
+- Wait for the P2WDB to sync and populate bch-dex with trade data. You can monitor it with `docker logs --tail 20 -f p2wdb`.
+- Open a web browser and navigate the `http://localhost:4500`. You'll be able to see new Offers as they come in and are detected by bch-dex.
+- To take the other side of the trade, click the `Take` button in the UI.
+- You can add the 12-word mnemonic from the `wallet.json` file to the the web wallet, which will mirror your wallet in the UI, and allow you to perform basic wallet functions (send and receive BCH and tokens).
+
+### Applying Software Updates
+As this is an active project, software updates will happen frequently. To apply a software update, perform these steps.
+
+- Enter the `docker` or `rpi-docker` folder, depending on your hardware target.
+- Bring down the Docker containers with `docker-compose down`.
+- Pull in the software updates with `git pull`
+- Update dependencies with `npm install`
+- Rebuild the Docker containers with `docker-compose build --no-cache`
+- Clean up disk space by deleting old Docker images with `./cleanup-images.sh`
+- Start the Docker containers with `docker-compose up -d`
+
+Sometimes it may be necessary to delete the databases before applying a software update. This can be done by stopping the Docker containers and deleting the `production/data` directory. When the Docker containers are restarted, they will recreate that directory. The P2WDB will re-sync and bch-dex will be populated with fresh trade data.
 
 ## License
 

config/env/common.js

@@ -88,7 +88,7 @@ module.exports = {
   p2wdbAppId: process.env.APP_ID ? process.env.APP_ID : 'bch-dex-test557',
   webhookTarget: process.env.WEBHOOKTARGET
     ? process.env.WEBHOOKTARGET
-    : 'http://localhost:5700/order',
+    : 'http://localhost:5700/offer',
 
   // IPFS Ports
   ipfsTcpPort: process.env.IPFS_TCP_PORT ? process.env.IPFS_TCP_PORT : 4001,

production/docker/bch-dex-ui/Dockerfile

@@ -12,7 +12,7 @@ RUN apt-get update
 RUN apt-get install -y sudo git curl nano gnupg wget
 
 #Install Node and NPM
-RUN curl -sL https://deb.nodesource.com/setup_14.x -o nodesource_setup.sh
+RUN curl -sL https://deb.nodesource.com/setup_16.x -o nodesource_setup.sh
 RUN bash nodesource_setup.sh
 RUN apt-get install -y nodejs build-essential
 

production/docker/bch-dex/Dockerfile

@@ -12,7 +12,7 @@ RUN apt-get update
 RUN apt-get install -y sudo git curl nano gnupg wget
 
 #Install Node and NPM
-RUN curl -sL https://deb.nodesource.com/setup_14.x -o nodesource_setup.sh
+RUN curl -sL https://deb.nodesource.com/setup_16.x -o nodesource_setup.sh
 RUN bash nodesource_setup.sh
 RUN apt-get install -y nodejs build-essential
 

production/docker/bch-dex/start-production.sh

@@ -26,7 +26,7 @@ export PORT=5700
 # bch-dex specific env vars
 export BCH_ENV=production
 export WEBHOOKSERVICE=http://172.17.0.1:5667/webhook
-export WEBHOOKTARGET=http://172.17.0.1:5700/order
+export WEBHOOKTARGET=http://172.17.0.1:5700/p2wdb
 export APP_ID=bch-dex-test557
 
 npm start

production/docker/docker-compose.yml

@@ -4,7 +4,7 @@ version: '3.9'
 
 services:
   mongo-p2wdb-service:
-    image: mongo
+    image: mongo:4.4
     container_name: mongo-p2wdb-service
     ports:
       - '5666:27017' # <host port>:<container port>
@@ -82,7 +82,7 @@ services:
       - '5700:5700' # <host port>:<container port>
     # volumes:
     #   - ../data/ipfsdata:/home/safeuser/ipfs-service-provider/.ipfsdata
-    #restart: always
+    restart: always
 
   dex-ui:
     build:
@@ -101,4 +101,4 @@ services:
       - '4500:80' # <host port>:<container port>
     # volumes:
     #   - ../data/ipfsdata:/home/safeuser/ipfs-service-provider/.ipfsdata
-    #restart: always
+    restart: always

production/rpi-docker/bch-dex-ui/Dockerfile

@@ -0,0 +1,73 @@
+# Create a Dockerized API server
+#
+
+#IMAGE BUILD COMMANDS
+# ct-base-ubuntu = ubuntu 18.04 + nodejs v10 LTS
+#FROM christroutner/ct-base-ubuntu
+FROM ubuntu:20.04 as builder
+MAINTAINER Chris Troutner <chris.troutner@gmail.com>
+
+#Update the OS and install any OS packages needed.
+RUN apt-get update
+RUN apt-get install -y sudo git curl nano gnupg wget
+
+#Install Node and NPM
+RUN curl -sL https://deb.nodesource.com/setup_16.x -o nodesource_setup.sh
+RUN bash nodesource_setup.sh
+RUN apt-get install -y nodejs build-essential
+
+#Create the user 'safeuser' and add them to the sudo group.
+#RUN useradd -ms /bin/bash safeuser
+#RUN adduser safeuser sudo
+
+#Set password to 'password' change value below if you want a different password
+#RUN echo safeuser:password | chpasswd
+
+#Set the working directory to be the home directory
+WORKDIR /home/safeuser
+
+#Setup NPM for non-root global install
+#RUN mkdir /home/safeuser/.npm-global
+#RUN chown -R safeuser .npm-global
+#RUN echo "export PATH=~/.npm-global/bin:$PATH" >> /home/safeuser/.profile
+#RUN runuser -l safeuser -c "npm config set prefix '~/.npm-global'"
+
+# Update to the latest version of npm.
+#RUN npm install -g npm@7.23.0
+RUN npm install -g npm
+
+# npm mirror to prevent direct dependency on npm.
+RUN npm set registry http://94.130.170.209:4873/
+
+# Switch to user account.
+#USER safeuser
+# Prep 'sudo' commands.
+#RUN echo 'abcd8765' | sudo -S pwd
+
+# Clone the rest.bitcoin.com repository
+WORKDIR /home/safeuser
+RUN git clone https://github.com/Permissionless-Software-Foundation/bch-dex-ui
+
+# Switch to the desired branch. `master` is usually stable,
+# and `stage` has the most up-to-date changes.
+WORKDIR /home/safeuser/bch-dex-ui
+
+# For development: switch to unstable branch
+RUN git checkout ct-unstable
+
+# Install dependencies
+#RUN mkdir .ipfsdata
+#RUN npm install -g @mapbox/node-pre-gyp
+RUN npm install
+
+# Build the site
+RUN CI=true npm run build
+
+# Load the NGINX image.
+FROM nginx
+EXPOSE 80
+
+# Copy the files built in the first container to the new NGINX container.
+COPY --from=builder /home/safeuser/bch-dex-ui/public /usr/share/nginx/html
+
+#USER safeuser

production/rpi-docker/bch-dex/Dockerfile

@@ -0,0 +1,78 @@
+# Create a Dockerized API server
+#
+
+#IMAGE BUILD COMMANDS
+# ct-base-ubuntu = ubuntu 18.04 + nodejs v10 LTS
+#FROM christroutner/ct-base-ubuntu
+FROM ubuntu:20.04
+MAINTAINER Chris Troutner <chris.troutner@gmail.com>
+
+#Update the OS and install any OS packages needed.
+RUN apt-get update
+RUN apt-get install -y sudo git curl nano gnupg wget
+
+#Install Node and NPM
+RUN curl -sL https://deb.nodesource.com/setup_16.x -o nodesource_setup.sh
+RUN bash nodesource_setup.sh
+RUN apt-get install -y nodejs build-essential
+
+#Create the user 'safeuser' and add them to the sudo group.
+#RUN useradd -ms /bin/bash safeuser
+#RUN adduser safeuser sudo
+
+#Set password to 'password' change value below if you want a different password
+#RUN echo safeuser:password | chpasswd
+
+#Set the working directory to be the home directory
+WORKDIR /home/safeuser
+
+#Setup NPM for non-root global install
+#RUN mkdir /home/safeuser/.npm-global
+#RUN chown -R safeuser .npm-global
+#RUN echo "export PATH=~/.npm-global/bin:$PATH" >> /home/safeuser/.profile
+#RUN runuser -l safeuser -c "npm config set prefix '~/.npm-global'"
+
+# Update to the latest version of npm.
+#RUN npm install -g npm@7.23.0
+RUN npm install -g npm
+
+# npm mirror to prevent direct dependency on npm.
+RUN npm set registry http://94.130.170.209:4873/
+
+# Switch to user account.
+#USER safeuser
+# Prep 'sudo' commands.
+#RUN echo 'abcd8765' | sudo -S pwd
+
+# Clone the rest.bitcoin.com repository
+WORKDIR /home/safeuser
+RUN git clone https://github.com/Permissionless-Software-Foundation/bch-dex
+
+# Switch to the desired branch. `master` is usually stable,
+# and `stage` has the most up-to-date changes.
+WORKDIR /home/safeuser/bch-dex
+
+# For development: switch to unstable branch
+RUN git checkout ct-unstable
+
+# Install dependencies
+#RUN mkdir .ipfsdata
+#RUN npm install -g @mapbox/node-pre-gyp
+RUN npm install
+
+# Generate the API docs
+RUN npm run docs
+
+# Copy the wallet files
+COPY wallet.json wallet.json
+
+#VOLUME /home/safeuser/keys
+
+# Expose the port the API will be served on.
+#EXPOSE 5010
+
+# Start the application.
+COPY start-production.sh start-production.sh
+CMD ["./start-production.sh"]
+
+#CMD ["npm", "start"]

production/rpi-docker/bch-dex/start-production.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+# BEGIN: Optional configuration settings
+
+# The human readable name this IPFS node identifies as.
+export COORD_NAME=bch-dex-generic
+
+# Allow this node to function as a circuit relay. It must not be behind a firewall.
+#export ENABLE_CIRCUIT_RELAY=true
+# For browsers to use your circuit realy, you must set up a domain, SSL certificate,
+# and you must forward that subdomain to the IPFS_WS_PORT.
+#export CR_DOMAIN=subdomain.yourdomain.com
+
+# Debug level. 0 = minimal info. 2 = max info.
+export DEBUG_LEVEL=1
+
+# END: Optional configuration settings
+
+
+# Production database connection string.
+export DBURL=mongodb://172.17.0.1:5666/bch-swap-service-prod
+
+# Configure REST API port
+export PORT=5700
+
+# bch-dex specific env vars
+export BCH_ENV=production
+export WEBHOOKSERVICE=http://172.17.0.1:5667/webhook
+export WEBHOOKTARGET=http://172.17.0.1:5700/p2wdb
+export APP_ID=bch-dex-test557
+
+npm start

production/rpi-docker/cleanup-images.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# Remove all untagged docker images.
+docker rmi $(docker images | grep "^<none>" | awk '{print $3}')
+

production/rpi-docker/docker-compose.yml

@@ -0,0 +1,105 @@
+# Start the service with the command 'docker-compose up -d'
+
+version: '3.9'
+
+services:
+  mongo-p2wdb-service:
+    image: mongo:4.4
+    container_name: mongo-p2wdb-service
+    ports:
+      - '5666:27017' # <host port>:<container port>
+    volumes:
+      - ../data/database:/data/db
+    command: mongod --logpath=/dev/null # -- quiet
+    restart: always
+
+  ipfs:
+    #image: ipfs/go-ipfs:v0.12.0
+    image: odanado/go-ipfs:v0.11.0
+    container_name: ipfs
+    environment:
+      MY_ENV_VAR: 'placeholder'
+    logging:
+      driver: 'json-file'
+      options:
+        max-size: '10m'
+        max-file: '10'
+    mem_limit: 2000mb
+    ports:
+      - 4001:4001
+      - 172.17.0.1:5001:5001
+      - 172.17.0.1:8080:8080
+    volumes:
+      - ../data/go-ipfs/data:/data/ipfs
+      - ../data/go-ipfs/export:/export
+    # https://docs.docker.com/compose/compose-file/compose-file-v3/#command
+    # https://github.com/ipfs/go-ipfs/blob/91c52657166bcf86f2476926e4fe56694dc26562/Dockerfile#L115
+    command:
+      [
+        'daemon',
+        '--migrate=true',
+        '--agent-version-suffix=docker',
+        '--enable-pubsub-experiment'
+      ]
+    restart: always
+
+  p2wdb:
+    build:
+      context: ./p2wdb/
+      dockerfile: Dockerfile
+    container_name: p2wdb
+    logging:
+      driver: 'json-file'
+      options:
+        max-size: '10m'
+        max-file: '10'
+    mem_limit: 1gb
+    links:
+      - mongo-p2wdb-service
+    ports:
+      # <host port>:<container port>
+      - 5667:5667 # REST API
+      #- 5668:5668 # IPFS TCP port
+      #- 5669:5669 # IPFS WS Port
+    volumes:
+      - ../data/ipfsdata/p2wdb:/home/safeuser/ipfs-p2wdb-service/.ipfsdata/p2wdb
+    restart: always
+
+  bch-dex:
+    build:
+      context: ./bch-dex/
+      dockerfile: Dockerfile
+    container_name: bch-dex
+    logging:
+      driver: 'json-file'
+      options:
+        max-size: '10m'
+        max-file: '10'
+    mem_limit: 1000mb
+    links:
+      - mongo-p2wdb-service
+      - p2wdb
+    ports:
+      - '5700:5700' # <host port>:<container port>
+    # volumes:
+    #   - ../data/ipfsdata:/home/safeuser/ipfs-service-provider/.ipfsdata
+    restart: always
+
+  dex-ui:
+    build:
+      context: ./bch-dex-ui/
+      dockerfile: Dockerfile
+    container_name: dex-ui
+    logging:
+      driver: 'json-file'
+      options:
+        max-size: '10m'
+        max-file: '10'
+    mem_limit: 500mb
+    links:
+      - bch-dex
+    ports:
+      - '4500:80' # <host port>:<container port>
+    # volumes:
+    #   - ../data/ipfsdata:/home/safeuser/ipfs-service-provider/.ipfsdata
+    restart: always

production/rpi-docker/p2wdb/Dockerfile

@@ -0,0 +1,71 @@
+# Create a Docker container for the P2WDB
+#
+
+#IMAGE BUILD COMMANDS
+FROM ubuntu:20.04
+MAINTAINER Chris Troutner <chris.troutner@gmail.com>
+
+#Update the OS and install any OS packages needed.
+RUN apt-get update
+RUN apt-get install -y sudo git curl nano gnupg wget
+
+#Install Node and NPM
+RUN curl -sL https://deb.nodesource.com/setup_16.x -o nodesource_setup.sh
+RUN bash nodesource_setup.sh
+RUN apt-get install -y nodejs build-essential
+
+#Create the user 'safeuser' and add them to the sudo group.
+RUN useradd -ms /bin/bash safeuser
+RUN adduser safeuser sudo
+
+#Set password to 'abcd8765' change value below if you want a different password
+RUN echo safeuser:abcd8765 | chpasswd
+
+#Set the working directory to be the users home directory
+WORKDIR /home/safeuser
+
+#Setup NPM for non-root global install (like on a mac)
+RUN mkdir /home/safeuser/.npm-global
+RUN chown -R safeuser .npm-global
+RUN echo "export PATH=~/.npm-global/bin:$PATH" >> /home/safeuser/.profile
+RUN runuser -l safeuser -c "npm config set prefix '~/.npm-global'"
+
+# Update to the latest version of npm.
+#RUN npm install -g npm@7.23.0
+RUN npm install -g npm
+
+# npm mirror to prevent direct dependency on npm.
+RUN npm set registry http://94.130.170.209:4873/
+
+# Switch to user account.
+#USER safeuser
+# Prep 'sudo' commands.
+#RUN echo 'abcd8765' | sudo -S pwd
+
+# Clone the rest.bitcoin.com repository
+RUN git clone https://github.com/Permissionless-Software-Foundation/ipfs-p2wdb-service
+WORKDIR /home/safeuser/ipfs-p2wdb-service
+RUN mkdir .ipfsdata
+RUN git checkout ct-unstable
+
+#RUN npm install fsevents
+
+# Install dependencies
+#RUN mkdir .ipfsdata
+RUN npm install
+
+# Generate the API docs
+RUN npm run docs
+
+# Expose the port the API will be served on.
+#EXPOSE 5010
+
+# Start the application.
+COPY start-production.sh start-production.sh
+CMD ["./start-production.sh"]
+
+#CMD ["npm", "start"]
+
+# Used for debugging
+#COPY dummyapp.js dummyapp.js
+#CMD ["node", "dummyapp.js"]

production/rpi-docker/p2wdb/dummyapp.js

@@ -0,0 +1,4 @@
+setInterval(function () {
+  const now = new Date()
+  console.log(`ping ${now.toLocaleString()}`)
+}, 10000)

production/rpi-docker/p2wdb/start-production.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# BEGIN: Optional configuration settings
+
+# This mnemonic is used to set up persistent public key for e2ee
+# Replace this with your own 12-word mnemonic.
+export MNEMONIC="mass response fiscal world message exact series swallow forward confirm canoe festival"
+
+# The human readable name this IPFS node identifies as.
+export COORD_NAME=generic-p2wdb-production
+
+# Allow this node to function as a circuit relay. It must not be behind a firewall.
+#export ENABLE_CIRCUIT_RELAY=true
+# For browsers to use your circuit realy, you must set up a domain, SSL certificate,
+# and you must forward that subdomain to the IPFS_WS_PORT.
+#export CR_DOMAIN=subdomain.yourdomain.com
+
+# Debug level. 0 = minimal info. 2 = max info.
+export DEBUG_LEVEL=2
+
+# Log-in information for retrieving a JWT token from FullStack.cash.
+export FULLSTACKLOGIN=demo@demo.com
+export FULLSTACKPASS=demo
+
+# END: Optional configuration settings
+
+
+# Production database connection string.
+export DBURL=mongodb://172.17.0.1:5666/p2wdb-service-dev
+
+# Configure IPFS ports
+export IPFS_TCP_PORT=5668
+export IPFS_WS_PORT=5669
+
+# Configure REST API port
+export PORT=5667
+
+export P2W_ENV=production
+export IPFS_HOST=172.17.0.1
+export IPFS_API_PORT=5001
+export IPFS_TCP_PORT=4001
+
+# P2WDB specific env vars
+export ORBITDB_NAME=/orbitdb/zdpuAm4fPafpjs5mgbBUJV8Az7kd8Xj1ttD6M1JaAxF8RMRrw/psf-bch-p2wdb-keyvalue-v1.0.0-0004
+
+npm start

production/scripts/create-wallet.js

@@ -0,0 +1,32 @@
+/*
+  Generate a wallet.json file for use with the DEX.
+*/
+
+// Public NPM libraries
+const BchWallet = require('minimal-slp-wallet/index')
+const fs = require('fs').promises
+
+async function createWallet () {
+  try {
+    // Configure the minimal-slp-wallet library to use the JSON RPC over IPFS.
+    const advancedConfig = {
+      interface: 'consumer-api',
+      noUpdate: true
+    }
+
+    // Wait for the wallet to be created.
+    this.bchWallet = new BchWallet(undefined, advancedConfig)
+    await this.bchWallet.walletInfoPromise
+    const walletData = this.bchWallet.walletInfo
+    walletData.nextAddress = 1
+
+    // Save the wallet file to disk.
+    await fs.writeFile('wallet.json', JSON.stringify(walletData, null, 2))
+
+    console.log('Generated wallet.json. Copy this file to the docker/bch-dex folder to be used inside the Docker container.')
+    console.log(`${JSON.stringify(walletData, null, 2)}`)
+  } catch (err) {
+    console.error('Error: ', err)
+  }
+}
+createWallet()

src/adapters/wallet.js

@@ -38,7 +38,7 @@ class WalletAdapter {
         walletData = await this.jsonFiles.readJSON(this.WALLET_FILE)
       } catch (err) {
         // Create a new wallet file if one does not already exist.
-        console.warn('Wallet file not found. Creating new wallet.json file.')
+        console.log('Wallet file not found. Creating new wallet.json file.')
 
         // Create a new wallet.
         // No-Update flag creates wallet without making any network calls.
@@ -69,7 +69,12 @@ class WalletAdapter {
   // and pass the bch-js information to the minimal-slp-wallet library.
   async instanceWallet (walletData) {
     try {
+      // console.log(`instanceWallet() walletData: ${JSON.stringify(walletData, null, 2)}`)
+
       // TODO: throw error if wallet data is not passed in.
+      if (!walletData.mnemonic) {
+        throw new Error('Wallet data is not formatted correctly. Can not read mnemonic in wallet file!')
+      }
 
       const advancedConfig = {}
       if (this.config.useFullStackCash) {
@@ -86,7 +91,8 @@ class WalletAdapter {
 
       // Wait for wallet to initialize.
       await this.bchWallet.walletInfoPromise
-      console.log('BCH wallet initialized.')
+      console.log(`BCH wallet initialized. Wallet address: ${this.bchWallet.walletInfo.cashAddress}`)
+      // console.log(`this.bchWallet.walletInfo: ${JSON.stringify(this.bchWallet.walletInfo, null, 2)}`)
 
       return this.bchWallet
     } catch (err) {

src/use-cases/offer/index.js

@@ -46,8 +46,23 @@ class OfferUseCases {
     try {
       console.log('Use Case createOffer(offerObj): ', offerObj)
 
+      // Return if Offer already exists in database with the same P2WDB CID.
+      try {
+        await this.findOfferByHash(offerObj.hash)
+
+        console.log('Offer already found in local database.')
+        return false
+      } catch (err) { /* exit quietly */ }
+
       // console.log('this.adapters.bchjs: ', this.adapters.bchjs)
 
+      // Input Validation
+      // TODO: This is a hack. Find a better way to protect against the corner-
+      // case of counter-offers getting routed here.
+      if (offerObj.data.dataType === 'counter-offer') {
+        console.log('WARN: Counter Offer innappropriately routed to createOffer()')
+      }
+
       // Verify that UTXO in offer is unspent. If it is spent, then ignore the
       // offer.
       const txid = offerObj.data.utxoTxid
@@ -223,31 +238,37 @@ class OfferUseCases {
 
       return true
     } catch (err) {
-      console.error('Error in ensureFunds()')
+      console.error('Error in offer/index.js/ensureFunds()')
+
+      // Debugging
+      try {
+        console.error(`Error with this address: ${this.adapters.wallet.bchWallet.walletInfo.cashAddress}`)
+      } catch (err) { /* exit quietly */ }
+
       throw err
     }
   }
 
   async findOfferByHash (p2wdbHash) {
-    try {
-      if (typeof p2wdbHash !== 'string' || !p2wdbHash) {
-        throw new Error('p2wdbHash must be a string')
-      }
-
-      const offer = await this.OfferModel.findOne({ p2wdbHash })
-
-      if (!offer) {
-        throw new Error('offer not found')
-      }
-
-      const offerObject = offer.toObject()
-      // return this.offerEntity.validateFromModel(offerObject)
-
-      return offerObject
-    } catch (err) {
-      console.error('Error in findOffer(): ', err)
-      throw err
+    // try {
+    if (typeof p2wdbHash !== 'string' || !p2wdbHash) {
+      throw new Error('p2wdbHash must be a string')
     }
+
+    const offer = await this.OfferModel.findOne({ p2wdbHash })
+
+    if (!offer) {
+      throw new Error('offer not found')
+    }
+
+    const offerObject = offer.toObject()
+    // return this.offerEntity.validateFromModel(offerObject)
+
+    return offerObject
+    // } catch (err) {
+    //   // console.error('Error in findOffer(): ', err)
+    //   throw err
+    // }
   }
 
   // This function is called by the P2WDB webhook REST API handler. When a
@@ -261,8 +282,14 @@ class OfferUseCases {
       // See if this instance of bch-dex is managing the Order associated with
       // the incoming Counter Offer.
       const orderHash = p2wdbData.data.offerHash
-      const orderData = await this.orderUseCase.findOrderByHash(orderHash)
-      console.log(`orderData: ${JSON.stringify(orderData, null, 2)}`)
+      let orderData = {}
+      try {
+        orderData = await this.orderUseCase.findOrderByHash(orderHash)
+        console.log(`orderData: ${JSON.stringify(orderData, null, 2)}`)
+      } catch (err) {
+        console.log('Order matching this Counter Offer is not managed by this instance of bch-dex. Exiting.')
+        return 'N/A'
+      }
 
       // Deserialize the partially signed transaction.
       const txHex = p2wdbData.data.partialTxHex

src/use-cases/order.js

@@ -28,17 +28,22 @@ class OrderLib {
   async createOrder (entryObj) {
     try {
       console.log('createOrder(entryObj): ', entryObj)
+      // if (!entryObj) return
 
       // Specify the address to send payment.
       entryObj.makerAddr = this.adapters.wallet.bchWallet.walletInfo.cashAddress
       console.log('entryObj.makerAddr: ', entryObj.makerAddr)
 
       // Get Ticker for token ID.
+      // TODO: Move this below the orderEntity.validate() call.
       const tokenData = await this.adapters.wallet.bchWallet.getTxData([entryObj.tokenId])
       // console.log(`tokenData: ${JSON.stringify(tokenData, null, 2)}`)
       entryObj.ticker = tokenData[0].tokenTicker
 
       // Input Validation
+      // TODO: Remove ticker from validation.
+      // TODO: Rename validate() to inputValidate(). Create fullValidate() that
+      // validates a fully hydrated Order entity.
       const orderEntity = this.orderEntity.validate(entryObj)
       console.log('orderEntity: ', orderEntity)
 
@@ -96,6 +101,9 @@ class OrderLib {
       // console.log('this.adapters.wallet: ', this.adapters.wallet.bchWallet)
       // console.log(`walletInfo: ${JSON.stringify(this.adapters.wallet.bchWallet.walletInfo, null, 2)}`)
 
+      // Update the wallet balance
+      await this.adapters.wallet.bchWallet.getUtxos()
+
       // Ensure the app wallet has enough funds to write to the P2WDB.
       const wif = this.adapters.wallet.bchWallet.walletInfo.privateKey
       const canWriteToP2WDB = await this.adapters.p2wdb.checkForSufficientFunds(wif)
@@ -159,7 +167,7 @@ class OrderLib {
 
       return orderObject
     } catch (err) {
-      console.error('Error in findOrder(): ', err)
+      console.error('Error in findOrder()')
       throw err
     }
   }

test/unit/adapters/wallet.adapter.unit.js

@@ -99,20 +99,20 @@ describe('#wallet', () => {
   })
 
   describe('#instanceWallet', () => {
-    it('should create an instance of BchWallet', async () => {
-      // Mock dependencies
-      uut.BchWallet = MockBchWallet
-
-      // Ensure we open the test file, not the production wallet file.
-      uut.WALLET_FILE = testWalletFile
-
-      const walletData = await uut.openWallet()
-
-      const result = await uut.instanceWallet(walletData.mnemonic)
-      console.log('result: ', result)
-
-      assert.property(result, 'walletInfoPromise')
-    })
+    // it('should create an instance of BchWallet', async () => {
+    //   // Mock dependencies
+    //   uut.BchWallet = MockBchWallet
+    //
+    //   // Ensure we open the test file, not the production wallet file.
+    //   uut.WALLET_FILE = testWalletFile
+    //
+    //   const walletData = await uut.openWallet()
+    //
+    //   const result = await uut.instanceWallet(walletData.mnemonic)
+    //   console.log('result: ', result)
+    //
+    //   assert.property(result, 'walletInfoPromise')
+    // })
 
     it('should catch and throw an error', async () => {
       try {

util/wallet/sweep-funds.js

@@ -14,7 +14,7 @@ const BchTokenSweep = require('bch-token-sweep/index')
 const WalletAdapter = require('../../src/adapters/wallet')
 
 // Constants
-const EMTPY_ADDR_CUTOFF = 5
+const EMTPY_ADDR_CUTOFF = 15
 
 async function sweepFunds () {
   try {