https://tutorials.cosmos.network/hands-on-exercise/1-ignite-cli/3-stored-game.html#
checkers is a blockchain built using Cosmos SDK and Tendermint and created with Ignite CLI.
ignite chain serve
serve command installs dependencies, builds, initializes, and starts your blockchain in development.
Your blockchain in development can be configured with config.yml. To learn more, see the Ignite CLI docs.
Ignite CLI has scaffolded a Vue.js-based web app in the vue directory. Run the following commands to install dependencies and start the app:
cd vue
npm install
npm run serve
The frontend app is built using the @starport/vue and @starport/vuex packages. For details, see the monorepo for Ignite front-end development.
UI at http://localhost:3000/.
To install the latest version of your blockchain node's binary, execute the following command on your machine:
curl https://get.ignite.com/dan-l/checkers@latest! | sudo bash
dan-l/checkers should match the username and repo_name of the Github repository to which the source code was pushed. Learn more about the install process.
# Build image
docker build -f Dockerfile . -t checkers_i
# Create container
docker create --name checkers -i -v $(pwd):/checkers -w /checkers -p 1317:1317 -p 3000:3000 -p 4500:4500 -p 5000:5000 -p 26657:26657 checkers_i
# Start container
docker start checkers
# Scaffold
docker run --rm -it -v $(pwd):/checkers -w /checkers checkers_i ignite scaffold chain github.com/dan-l/checkers
# Start chain
docker exec -it checkers ignite chain serve
# Print status
docker exec -it checkers bash -c "checkersd status 2>&1 | jq"
# Help
docker exec -it checkers checkersd --help
docker exec -it checkers checkersd status --help
docker exec -it checkers checkersd query --help
# Install
docker exec -it checkers bash -c "cd vue && npm install"
# Build and run UI
docker exec -it checkers bash -c "cd vue && npm run dev -- --host"
# (Re)generate protobuf
docker exec -it checkers ignite generate proto-go
# All unit test
docker exec -it checkers go test -v ./...
# Specific dir
docker exec -it checkers go test -v go test github.com/dan-l/checkers/x/checkers/types
# Clean cache
docker exec -it checkers go clean -testcache
query: reading statetx: update stategenesis: genesis state
- See struct at
x/checkers/types/system_info.pb.go - Store system wide info such as the next id for new game (which also tracks number of game history)
docker exec -it checkers checkersd query checkers show-system-info -o json
- See struct at
x/checkers/types/stored_game.pb.go - Information saved about the game state such as players and the board state
- Map keyed by index to query the game state by index
docker exec -it checkers checkersd query checkers list-stored-game -o json
# Get the addresses
export alice=$(docker exec checkers checkersd keys show alice -a)
export bob=$(docker exec checkers checkersd keys show bob -a)
# Create game
docker exec -it checkers checkersd tx checkers create-game $alice $bob --from $alice --gas auto
# show board
docker exec -it checkers checkersd query checkers show-stored-game 1 --output json | jq ".storedGame.board" | sed 's/"//g' | sed 's/|/\n/g'
# Move
docker exec -it checkers checkersd tx checkers play-move 1 1 2 2 3 --from $alice
# Check state
docker exec -it checkers checkersd query checkers show-stored-game 1 --output json | jq ".storedGame.board" | sed 's/"//g' | sed 's/|/\n/g'
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