Chainlink Fun

Learn about chainlink by working through basic examples.

Deploy Chainlink Node

Run with Docker

Requirements

• Install Docker
• Install Postgres
• Create an Infura account
  • Click the Projects section and create a new project.
  • In the KEYS section you will see a list of different credentials. Under ENDPOINTS tab change the select to Ropsten.
  • Underneath this you will have two links. Notice the wss://ropsten.infura.io/ws/v3/... link. You will need this in a second

Running the Node

• Run cd run-node

• Open the .env file and where ETH_URL=INFURA_ROPSTEN_LINK_HERE is paste your infura link.

• Create $PATH_TO_DIR/chainlink-volume directory

• Create $PATH_TO_DIR/chainlink-volume/password.txt - Password used within Chainlink node for access Add the following:

secret

• Create $PATH_TO_DIR/chainlink-volume/apicredentials.txt - Credientials to login into the Chainlink UI Add the following:

[email protected]
chainlinkPassword

• Add shared paths to Docker
  • Docker -> Preferences -> Resources -> File Sharing
  • Add $PATH_TO_DIR/chainlink-volume
  • Add $PATH_TO_POSTGRES_DATA
• Run docker-compose up - This will run our docker-compose.yml and spin up a Postgres/Chainlink node instance.
• This will run our Postgres instance but fail when starting the Chainlink node because there is no chainlink postgres database created. We can solve this by entering the CLI of our Postgres(pg_chainlink) instance inside Docker.
• Open the Docker dashboard and click on chainlink-ropsten then open the CLI for chainlink-ropsten_database_1.
• Enter the Postgres console by typing: psql -U postgres -h localhost
• Now create the database: CREATE DATABASE chainlink;
• Run docker-compose up once again and your Chainlink node should be running as expected.
• Goto: http://localhost:6688 and you will be greeted with a login page.
• Type in the credentials specified in your apicredentials.txt file and boom! You are logged into your locally running Chainlink node.
• You can locate your account address by clicking on the Configuration tab in the top right corner and locating the ACCOUNT_ADDRESS key variable.
• From here you should fund your address LINK and ETH. You can do that by copying your account address and going to the LINK ropsten faucet and ETH ropsten faucet.