Polkadot programming - development using node template

 Polkadot - Substrate development Step by Step

Following commands will work on macOS... Good luck

This steps are for starting single node at backend and starting front end to explore ( e.g. transfer fund from one account to another)

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Install Homebrew

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

Install opensssl

brew update && brew install openssl

Install Rust and RustToolchain

curl https://sh.rustup.rs -sSf | sh

source ~/.cargo/env

rustup default stable

rustup update

rustup update nightly

rustup target add wasm32-unknown-unknown --toolchain nightly

verify installation by 

rustc --version

rustup show

Prepare a Substrate node using the node template

Setup node template. Its a provides a working development environment so that you can start building on Substrate right away.

git clone https://github.com/substrate-developer-hub/substrate-node-template

cd substrate-node-template

# We want to use the `latest` tag throughout all of this tutorial

git checkout latest

cargo build --release

install the front-end template:

Install node.js

verify by

node --version

sudo npm install --location=global yarn

verify by

yarn --version

Install front end inside recently created node template directory

git clone https://github.com/substrate-developer-hub/substrate-front-end-template

cd substrate-front-end-template

# We want to use the `latest` tag throughout all of this tutorial

git checkout latest

yarn install

Start the local Substrate node

 ~ % cd substrate-node-template 

substrate-node-template % ./target/release/node-template --dev

   

Start the front-end template

To use the front-end template:

1. Open a new terminal shell on your computer, change to the root directory where you installed the front-end template.
2. Start the Front-end template by running the following command
   
   yarn start
   

Open http://localhost:8000 in a browser to view the front-end template.

Test

select the account for Dave and transfer minimum amount stated on UI

...success....

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