feat: Add context to GetToken endpoint

auth/callback.go

@@ -56,7 +56,7 @@ func (c *CallbackHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	scope := q.Get("scope")
 	_ = scope
 
-	token, err := c.client.GetToken(code)
+	token, err := c.client.GetToken(r.Context(), code)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return

auth/client.go

@@ -1,5 +1,7 @@
 package auth
 
+import "context"
+
 type Client struct {
 	clientId     string
 	clientSecret string
@@ -21,8 +23,8 @@ func NewClient(clientId string, clientSecret string, redirectUri string) *Client
 // GetToken exchanges an authorization code for an access token.
 //
 // https://dev.twitch.tv/docs/authentication/getting-tokens-oidc/#oidc-authorization-code-grant-flow
-func (c *Client) GetToken(code string) (*Token, error) {
-	return GetToken(&GetTokenParams{
+func (c *Client) GetToken(ctx context.Context, code string) (*Token, error) {
+	return GetToken(ctx, &GetTokenParams{
 		ClientId:     c.clientId,
 		ClientSecret: c.clientSecret,
 		Code:         code,
@@ -34,8 +36,8 @@ func (c *Client) GetToken(code string) (*Token, error) {
 // RefreshToken exchanges a refresh token for an access token.
 //
 // https://dev.twitch.tv/docs/authentication/refresh-tokens/
-func (c *Client) RefreshToken(token *Token) (*Token, error) {
-	return GetToken(&GetTokenParams{
+func (c *Client) RefreshToken(ctx context.Context, token *Token) (*Token, error) {
+	return GetToken(ctx, &GetTokenParams{
 		ClientId:     c.clientId,
 		ClientSecret: c.clientSecret,
 		Code:         token.RefreshToken,

auth/token.go

@@ -1,6 +1,7 @@
 package auth
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"net/http"
@@ -47,13 +48,19 @@ type GetTokenParams struct {
 	RedirectUri  string `url:"redirect_uri"`
 }
 
-func GetToken(params *GetTokenParams) (*Token, error) {
+func GetToken(ctx context.Context, params *GetTokenParams) (*Token, error) {
 	v, err := query.Values(params)
 	if err != nil {
 		return nil, err
 	}
 
-	res, err := http.Post(TokenUrl, "application/x-www-form-urlencoded", strings.NewReader(v.Encode()))
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, TokenUrl, strings.NewReader(v.Encode()))
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	res, err := http.DefaultClient.Do(req)
 	if err != nil {
 		return nil, err
 	}

auth/token_source.go

@@ -1,6 +1,7 @@
 package auth
 
 import (
+	"context"
 	"sync"
 
 	"golang.org/x/oauth2"
@@ -28,7 +29,7 @@ func (ts *TokenSource) Token() (*oauth2.Token, error) {
 		return ts.token.Underlying(), nil
 	}
 
-	token, err := ts.client.RefreshToken(ts.token)
+	token, err := ts.client.RefreshToken(context.Background(), ts.token)
 	if err != nil {
 		return nil, err
 	}