Go CI

improve credentials null check #184

	name: Go CI

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]
	defaults:
	run:
	shell: bash
	working-directory: golang
	jobs:

	build:
	name: Build
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	go: ["1.13", "1.14", "1.15", "1.16", "1.17", "1.18", "1.19", "1.20", "1.21"]

	steps:
	- name: Set up Go 1.x
	uses: actions/setup-go@v3
	with:
	go-version: ${{ matrix.go }}

	- name: Check out code into the Go module directory
	uses: actions/checkout@v3

	- name: Export Env
	run: export GO111MODULE=on
	- name: Build
	run: go mod tidy
	- name: Test
	run: go test -race -coverprofile=coverage.txt -covermode=atomic ./client/...
	- uses: codecov/codecov-action@v4
	with:
	flags: golang # optional
	token: ${{ secrets.CODECOV_TOKEN }}

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