checkers

Cosmos Developer Portal Hands-on Exercise tutorial

Add Dockerfile-ubuntu

Run: docker build -f Dockerfile-ubuntu . -t checkers_i

Check version: docker run --rm -it checkers_i ignite version

Run 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
//?? docker start checkers

docker run --rm -it -v $(pwd):/checkers -w /checkers checkers_i ignite scaffold chain checkers

start docker container

cd checkers docker run --rm -it -v $(pwd):/checkers -w /checkers -p 1317:1317 -p 3000:3000 -p 4500:4500 -p 5000:5000 -p 26657:26657 --name checkers checkers_i ignite chain serve

Interact via the CLI

From new terminal: docker exec -it checkers bash -c "checkersd status 2>&1 | jq"

Open UI

docker exec -it checkers bash -c "cd vue && npm install" docker exec -it checkers bash -c "cd vue && npm run dev -- --host"

Go to http://localhost:3000

Then connect wallet and send to wallet address via http://localhost:4500/#/default/post_ Now see assets in ui

Send message

Stop run, git commit, and do: docker run --rm -it -v $(pwd):/checkers -w /checkers checkers_i ignite scaffold message createPost title body

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Store Object - Make a Checkers Blockchain

mkdir x/checkers/rules curl https://raw.githubusercontent.com/batkinson/checkers-go/a09daeb1548dd4cc0145d87c8da3ed2ea33a62e3/checkers/checkers.go | sed 's/package checkers/package rules/' > x/checkers/rules/checkers.go

counter and container: docker run --rm -it \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ ignite scaffold single systemInfo nextId:uint \ --module checkers \ --no-message

game type: docker run --rm -it \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ ignite scaffold map storedGame board turn black red \ --index index \ --module checkers \ --no-message

recompile after updating message GenesisState systemInfo: docker run --rm -it \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ ignite generate proto-go

added code to checkers/x/checkers/types/full_game.go

run unit tests: docker run --rm -it \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ go test checkers/x/checkers/keeper

Start the chain in its shell:

docker run --rm -it \ --name checkers \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ ignite chain serve --reset-once

check status

docker exec -it checkers
checkersd query checkers --help

docker exec -it checkers
checkersd query checkers show-system-info

docker exec -it checkers
checkersd query checkers show-system-info --output json

docker exec -it checkers
checkersd query checkers list-stored-game

docker exec -it checkers
checkersd tx checkers --help

create a game

docker run --rm -it \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ ignite scaffold message createGame black red \ --module checkers \ --response gameIndex

recompile after updating message GenesisState systemInfo: docker run --rm -it \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ ignite generate proto-go

set users

export alice=$(docker exec checkers checkersd keys show alice -a) export bob=$(docker exec checkers checkersd keys show bob -a)

create a game

calc gas estimation: docker exec -it checkers checkersd tx checkers create-game $alice $bob --from $alice --dry-run - does not work due to bug

create game: docker exec -it checkers checkersd tx checkers create-game $alice $bob --from $alice --gas auto

Show the system info: docker exec -it checkers checkersd query checkers show-system-info

List all stored games: docker exec -it checkers checkersd query checkers list-stored-game

Show the new game alone: docker exec -it checkers checkersd query checkers show-stored-game 1

Show the new game board: docker exec -it checkers
bash -c "checkersd query checkers show-stored-game 1 --output json | jq ".storedGame.board" | sed 's/"//g' | sed 's/|/\n/g'"

Make a move

After adding code docker exec -it checkers checkersd tx checkers play-move --help try ilegal move: docker exec -it checkers checkersd tx checkers play-move 1 0 5 1 4 --from $bob error: raw_log: 'failed to execute message; message index: 0: {red}: player tried to play out of turn'

correct move: docker exec -it checkers checkersd tx checkers play-move 1 1 2 2 3 --from $alice

Reject a Game

docker run --rm -it \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ ignite scaffold message rejectGame gameIndex --module checkers

add moves counter to each game:

recompile the relevant Go files: docker run --rm -it \ -v $(pwd):/checkers \ -w /checkers \ checkers_i \ ignite generate proto-go

generate exxecutable

cd cd checkers/cmd/checkersd go build