## Getting Started For Developers In order for developers to start building modules, they must install the following tools: 1. [Go 1.6 or higher](https://golang.org/doc/install) 2. [Docker](https://docs.docker.com/get-docker/) ### Go Programming Language Go is a language developed and used by some of the largest companies in the world for server/networking applications. Go is used to develop modules and provides optimum performance and flexibility to blockchain developers. [A Tour Of Go](https://tour.golang.org/welcome/1) ### Docker Docker is a software containerization tool used to spin up and shut down Kava nodes and allows software portability between different operating systems & environments. It is also used to spin up multiple Kava nodes locally and handles basic networking between them with `docker compose`. [Docker Overview](https://docs.docker.com/get-started/overview/) ### Set Up bash_profile Once Go & Docker are installed, update your bash_profile to include the go path and an alias command for one of the tools we will use to handle Kava node interactions ``` export PATH=/usr/local/go/bin:$PATH export PATH=$HOME/go/bin:$PATH export GOPATH=$HOME/go export GO111MODULE=on alias dkvcli='docker exec -it generated_kavanode_1 kvcli' ``` Make sure to source your bash profile or restart it for the changes to take place. ## Getting The Kava Repository & Development Tools Once you have the core tools installed & set up, its now time to get the following repositories from Github: - [kava](https://github.com/Kava-Labs/kava) - Main Kava Repo that holds all modules - [kvtool](https://github.com/Kava-Labs/kvtool) - Dev tools to interact with a Kava node ## Set Up a Local Blockchain Now that you have set up all the tools & repositories in your local machine its finally time to set up a local blockchain. - Open a terminal and change into the ```kvtool``` directory. - Ensure Docker is running. - Run ```make install``` in your terminal which will install ```kvtool``` in your machine. - Ensure Docker is running. - Run ```kvtool testnet bootstrap``` this command will build against the master branch from the kava project, initialize the Docker containers and finally starts a local chain. Now that you have a local chain running, you can start utilizing the ```dkvcli``` that we set up an alias for. If for whatever reason ```dkvcli``` doesn't work, you can try the following: - Open a terminal and change into the ```kvtool``` directory. - In the ```kvtool``` directory there should be a directory named ```full_configs``` change into it. - Once at ```full_configs``` directory change into ```generated``` directory. - Once you are at ```generated``` run the following command ```docker-compose exec kavanode bash```. This should open up a bash terminal inside a docker container that will give you access to the ```kvcli``` command line interface. You should see something similar to the snippet below after typing ```kvcli help```: ``` bash-5.0# kvcli Command line interface for interacting with kvd Usage: kvcli [command] Available Commands: status Query remote node for status config Create or query an application CLI configuration file query Querying subcommands tx Transactions subcommands rest-server Start LCD (light-client daemon), a local REST server keys Add or view local private keys version Print the app version help Help about any command Flags: --chain-id string Chain ID of tendermint node -e, --encoding string Binary encoding (hex|b64|btc) (default "hex") -h, --help help for kvcli --home string directory for config and data (default "/root/.kvcli") -o, --output string Output format (text|json) (default "text") --trace print out full stack trace on errors Use "kvcli [command] --help" for more information about a command. ```