Implemented World of Warcraft - Game Data APIs - PvP Season API

battlenet/battlenet.go

@@ -0,0 +1,91 @@
+package battlenet
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+)
+
+const (
+	STATIC  string = "static"
+	DYNAMIC string = "dynamic"
+	PROFILE string = "profile"
+)
+
+const (
+	US string = "us"
+	EU string = "eu"
+	KR string = "kr"
+	TW string = "tw"
+)
+
+type clientCredentialsAPI struct {
+	AccessToken string `json:"access_token"`
+	TokenType   string `json:"token_type"`
+	ExpiresIn   int    `json:"expires_in"`
+	Sub         string `json:"sub"`
+}
+
+type BattleNetAPIParams struct {
+	UrlOrEndpoint string
+	Namespace     string
+	Region        string
+	Token         string
+}
+
+func GetAccessToken(clientID string, clientSecret string) clientCredentialsAPI {
+	const authenticationUrl string = "https://oauth.battle.net/token"
+	resp, err := http.Post(authenticationUrl, "application/x-www-form-urlencoded", strings.NewReader(fmt.Sprintf("grant_type=client_credentials&client_id=%s&client_secret=%s", clientID, clientSecret)))
+	if err != nil {
+		fmt.Println(err)
+	}
+	defer resp.Body.Close()
+	respBody, err := io.ReadAll(resp.Body)
+	if err != nil {
+		fmt.Println(err)
+	}
+	if resp.StatusCode != 200 {
+		fmt.Println(resp.Status)
+		panic("Failed to get access token")
+	}
+	var credentials clientCredentialsAPI
+	err = json.Unmarshal(respBody, &credentials)
+	if err != nil {
+		fmt.Println(err)
+		panic("Failed to parse access token response")
+	}
+	fmt.Println("Access Token: ", credentials.AccessToken)
+	return credentials
+}
+
+func BattleNetAPI(params BattleNetAPIParams) []byte {
+	var requestURL string
+	if strings.HasPrefix(params.UrlOrEndpoint, "http") {
+		requestURL = params.UrlOrEndpoint
+	} else {
+		var baseURL string = fmt.Sprintf("https://%s.api.blizzard.com", params.Region)
+		requestURL = fmt.Sprintf("%s%s?namespace=%s-%s", baseURL, params.UrlOrEndpoint, params.Namespace, params.Region)
+	}
+	fmt.Println(requestURL)
+	req, err := http.NewRequest("GET", requestURL, nil)
+	if err != nil {
+		fmt.Println(err)
+	}
+	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", params.Token))
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		fmt.Println(err)
+	}
+	defer resp.Body.Close()
+	respBody, err := io.ReadAll(resp.Body)
+	if err != nil {
+		fmt.Println(err)
+	}
+	if resp.StatusCode != 200 {
+		fmt.Println(resp.Status)
+		panic("Failed to process the request")
+	}
+	return (respBody)
+}