refactor client,index go file #7

	name: CI

	on: [push, pull_request]

	jobs:
	test:
	name: Test
	runs-on: ubuntu-latest

	# strategy set
	strategy:
	matrix:
	go: [ '1.17','1.18','1.19','1.20' ]

	steps:
	- uses: actions/checkout@v3
	- name: Set up Go 1.x
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go }}
	id: go
	- name: Test
	run: go test -v -race ./...

	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 2
	- uses: actions/setup-go@v2
	with:
	go-version: '1.20'
	- name: Run coverage
	run: go test -race -coverprofile=coverage.out -covermode=atomic ./...
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v3

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