https://github.com/anupam-io/chainlink-node-operator
Setting up a chainlink node, deploying an oracle and a price feed consumer
https://github.com/anupam-io/chainlink-node-operator
chainlink docker nodejs oracle postgresql truffle
Last synced: 2 months ago
JSON representation
Setting up a chainlink node, deploying an oracle and a price feed consumer
- Host: GitHub
- URL: https://github.com/anupam-io/chainlink-node-operator
- Owner: anupam-io
- Created: 2021-04-07T19:18:47.000Z (about 5 years ago)
- Default Branch: main
- Last Pushed: 2022-07-25T13:24:05.000Z (almost 4 years ago)
- Last Synced: 2025-05-29T20:14:01.152Z (about 1 year ago)
- Topics: chainlink, docker, nodejs, oracle, postgresql, truffle
- Language: JavaScript
- Homepage: https://kovan.etherscan.io/address/0x3D07b397734D638906db75859eb97949C9402f72
- Size: 2.02 MB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# **How to setup chainlink node**
## Setting up the `.env` file
```
mkdir ~/.chainlink-kovan
touch .env
```
- Put this inside your `~/.chainlink-kovan/.env` file:
```
ROOT=/chainlink
LOG_LEVEL=debug
ETH_CHAIN_ID=42
MIN_OUTGOING_CONFIRMATIONS=2
LINK_CONTRACT_ADDRESS=0xa36085F69e2889c224210F603D836748e7dC0088
CHAINLINK_TLS_PORT=0
SECURE_COOKIES=false
GAS_UPDATER_ENABLED=true
ALLOW_ORIGINS=*
ETH_URL=CHANGEME
```
## Set the local `postgres` DATABASE_URL Config
```
sudo -i -u postgres
psql
ALTER USER postgres PASSWORD '12345678'
```
- Postges setup:
```
username: postgres
password: postgres
server: localhost
port: 5432
database: postgres
```
- Add these to your `~/.chainlink-kovan/.env` file
```
DATABASE_URL=postgresql://postgres:postgres@localhost:5432/postgres
DATABASE_TIMEOUT=0
```
## Resources
- https://docs.chain.link/docs/running-a-chainlink-node
- https://docs.chain.link/docs/fulfilling-requests
- https://docs.chain.link/docs/job-specifications#config
# **How to start chainlink node?**
```
cd ~/.chainlink-kovan
docker run --name chainlink-kovan --network host -p 6688:6688 -v ~/.chainlink-kovan:/chainlink -it --env-file=.env smartcontract/chainlink:0.10.3 local n
Visit: http://localhost:6688/
```
- Stopping & deleting container:
```
docker stop chainlink-kovan && docker container rm chainlink-kovan
```
- `docker network ls`: make sure host is there.
## Screenshots
- 
- 
- 
# **How to deploy APIConsumer**
- Assuming that you have successfully setup the chainlink node.
- `truffle compile`
- `truffle migrate --reset --network kovan`/`truffle migrate --f 3 --network kovan`(If you update APIConsumer only.)
- `yarn verify`
- `truffle exec scripts/1_fund_link.js --network kovan`
- Needs to be done for the first time:
- `truffle exec scripts/2_add_permission.js --network kovan`
- Add a new job from the NODE UI, with [job spec](https://docs.chain.link/docs/job-specifications#config) from: `job_specs/eth=>bool.json` & **don't forget to copy Oracle address into job_spec**
- `truffle exec scripts/3_request.js --network kovan`
- `truffle exec scripts/4_read_val.js --network kovan`
- `node main.js`: Check postgres connection & NODE funds
## Directory structure
```
pam@g3:~/cl-node$ tree -I 'node_modules|build'
.
├── contracts
│ ├── Distributor
│ │ ├── APIConsumer.sol
│ │ └── TokenHandler.sol
│ ├── ERC1155
│ │ └── Token.sol
│ └── Migrations.sol
├── help
│ ├── node.info.js
│ ├── postgres.check.js
│ └── query.js
├── index.js
├── job_specs
│ └── eth=>bool.json
├── migrations
│ ├── 1_initial_migration.js
│ ├── 2_oracle.js
│ ├── 3_token.js
│ └── 4_testnet_consumer.js
├── package.json
├── README.md
├── scripts
│ ├── 1_fund_link.js
│ ├── 2_add_permission.js
│ ├── 3_request.js
│ └── 4_read_val.js
├── truffle-config.js
└── yarn.lock
7 directories, 21 files
```
## Deployments
```
$ truffle run verify Oracle APIConsumer Token --network kovan --license MIT
Verifying Oracle
Contract source code already verified: https://kovan.etherscan.io/address/0xa4B3F31cED36617A454F660Be10B97456922cbE0#contracts
Verifying APIConsumer
Pass - Verified: https://kovan.etherscan.io/address/0xBdC3FcC0BEd515F09221dB7FA1B161052D8a3F23#contracts
Verifying Token
Pass - Verified: https://kovan.etherscan.io/address/0xFE96C2094A3dF1ec1B7C3d42B92Fe7DB6cFd4e66#contracts
Successfully verified 3 contract(s).
Done in 29.99s.
```
- [Node address: `0xBcabE53a3cd718bc48137831f6F788C8AB35D10a`](https://kovan.etherscan.io/address/0xBcabE53a3cd718bc48137831f6F788C8AB35D10a)
- Job address: `68e165d25145484b9effc50925d09889`
# **How to run local express server**
- `yarn server`: Start in *dev* mode
- `yarn start`: Start in *prod* mode