ipld-eth-server/README.md

Vulcanize DB

Development Setup

Dependencies

• Go 1.9+
• https://github.com/golang/dep
  • go get -u github.com/golang/dep/cmd/dep
• Postgres 10

Cloning the Repository

1. git config --global url."git@github.com:".insteadOf "https://github.com/"
   • By default, go get does not work for private GitHub repos. This will fix that.
2. go get github.com/8thlight/vulcanizedb
3. go get github.com/ethereum/go-ethereum
   • This will take a while and gives poor indication of progress.
4. go install github.com/ethereum/go-ethereum/cmd/geth
5. cd $GOPATH/src/github.com/8thlight/vulcanizedb
6. dep ensure

Setting up the Development Database

1. Install Postgres
2. Create a superuser for yourself and make sure psql --list works without prompting for a password.
3. go get -u -d github.com/mattes/migrate/cli github.com/lib/pq
4. go build -tags 'postgres' -o /usr/local/bin/migrate github.com/mattes/migrate/cli
5. createdb vulcanize
6. cd $GOPATH/src/github.com/8thlight/vulcanizedb
7. ./scripts/migrate

Adding a new migration: ./scripts/create_migration <migration-name>

Creating/Using a Private Blockchain

Syncing the public blockchain takes many hours for the initial sync and will download 20+ GB of data. Here are some instructions for creating a private blockchain that does not depend on having a network connection.

1. Run ./scripts/setup to create a private blockchain with a new account.
   • This will result in a warning.
2. Run ./scripts/start_private_blockchain.

Connecting to the Public Blockchain

./scripts/start_blockchain

IPC File Paths

The default location for Ethereum is:

• $HOME/Library/Ethereum for Mac
• $HOME/.ethereum for Ubuntu
• $GOPATH/src/gihub.com/8thlight/vulcanizedb/test_data_dir/geth.ipc for private blockchain.

Note the location of the ipc file is outputted when you connect to a blockchain. It is needed to start the listener below

Running Listener

1. Start a blockchain.
2. In a separate terminal start listener (ipcDir location)
   • go run main.go --ipcPath /path/to/file.ipc

Running the Tests

Integration Test

In order to run the integration tests, you will need to run them against a real blockchain.

1. Run ./scripts/start_private_blockchain as a separate process.
2. go test ./...

Unit Tests

1. go test ./core