chore: create module and bump to go 1.21

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+# Default owner
+* @MolotovTv/backend

.github/pull_request_template.md

@@ -0,0 +1,11 @@
+## Description
+> A clear and concise description of what changes you did.
+
+## Jira issue
+> Link to the Jira issue.
+
+## Depends on
+> Link to other pull requests.
+
+## Jira Story
+> Description from Jira

.github/workflows/ci_pr_checks.yml

@@ -0,0 +1,42 @@
+name: PR checks
+
+on:
+  pull_request:
+    branches:
+      - master
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - ready_for_review
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref }}
+  cancel-in-progress: true
+
+jobs:
+  tests:
+    name: Tests
+    runs-on: ubuntu-latest
+    if: always() && !github.event.pull_request.draft
+    env:
+      GOPRIVATE: github.com/molotovtv
+      GH_ACCESS_TOKEN: ${{ secrets.GH_TOKEN }}
+
+    steps:
+      - name: ⭐️ Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Go 1.21
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.21
+
+      - run: git config --global url.https://[email protected]/.insteadOf https://github.com/
+
+      - name: Install dependencies
+        run: go get ./...
+
+      - name: ✅ Tests
+        run: |
+          go test ./...

go.mod

@@ -0,0 +1,11 @@
+module github.com/molotovtv/go-slack
+
+go 1.21
+
+require github.com/stretchr/testify v1.9.0
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,10 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

http.go

@@ -3,13 +3,13 @@ package slack
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net"
 	"net/http"
 	"time"
 )
 
-// Send sends an http request with a timeout
+// Send sends a http request with a timeout
 var Send = func(req *http.Request, httpClient *http.Client) (*http.Response, error) {
 	return httpClient.Do(req)
 }
@@ -53,7 +53,7 @@ func (s *Slack) SendWithMaxRetries(hostname string, pattern string, method strin
 			// Get body
 			if resp != nil {
 				defer resp.Body.Close()
-				if _, err = ioutil.ReadAll(resp.Body); err != nil {
+				if _, err = io.ReadAll(resp.Body); err != nil {
 					return
 				}
 			}
@@ -70,14 +70,14 @@ func (s *Slack) SendWithMaxRetries(hostname string, pattern string, method strin
 	}
 
 	// Max retries limit reached
-	err = fmt.Errorf("Max retries %d reached for request to %s", s.RetryMax, req.URL)
+	err = fmt.Errorf("max retries %d reached for request to %s", s.RetryMax, req.URL)
 	return
 }
 
 // ProcessResponse processes an HTTP response
 var ProcessResponse = func(req *http.Request, resp *http.Response) error {
 	if resp.StatusCode < 200 || resp.StatusCode > 299 {
-		return fmt.Errorf("Invalid status code %v on %v", resp.StatusCode, req.URL)
+		return fmt.Errorf("invalid status code %v on %v", resp.StatusCode, req.URL)
 	}
 	return nil
 }