Chainlink Core is the API backend that Chainlink client contracts on Ethereum make requests to. The backend utilizes Solidity contract ABIs to generate types for interacting with Ethereum contracts.

Features

• Headless API implementation
• CLI tool providing conveniance commands for node configuration, administration, and CRUD object operations (e.g. Jobs, Runs, and even the VRF)

Installation

See the root README for instructions on how to build the full Chainlink node.

Directory Structure

This directory contains the majority of the code for the backend of Chainlink.

Outside of the code contained in this repo, some static assets are pulled in using packr, in the sibling directory packr/. Additionally, the static assets generated by compiling the sibling directory operator-ui/ are built by packr and included in the final binary.

Common Commands

Install:

By default go install will install this directory under the name core. You can instead, build it, and place it in your path as chainlink:

go build -o $GOPATH/bin/chainlink .

Test:

# A higher parallel number can speed up tests at the expense of more RAM.
go test -p 1 ./...

The golang testsuite is almost entirely parallelizable, and so running the default go test ./... will commonly peg your processor. Limit parallelization with the -p 2 or whatever best fits your computer: go test -p 4 ./....