added SetAccessTokenContextHandle

Signed-off-by: mqf20 <mingqingfoo@gmail.com>

credential/access_token.go

@@ -7,10 +7,12 @@ type AccessTokenHandle interface {
 	GetAccessToken() (accessToken string, err error)
 }
 
+// AccessTokenCompatibleHandle 同时实现 AccessTokenHandle 和 AccessTokenContextHandle
 type AccessTokenCompatibleHandle struct {
 	AccessTokenHandle
 }
 
+// GetAccessTokenContext 获取access_token,先从cache中获取，没有则从服务端获取
 func (c AccessTokenCompatibleHandle) GetAccessTokenContext(_ context.Context) (accessToken string, err error) {
 	return c.GetAccessToken()
 }

miniprogram/miniprogram.go

@@ -55,6 +55,11 @@ func (miniProgram *MiniProgram) SetAccessTokenHandle(accessTokenHandle credentia
 	}
 }
 
+// SetAccessTokenContextHandle 自定义 access_token 获取方式
+func (miniProgram *MiniProgram) SetAccessTokenContextHandle(accessTokenContextHandle credential.AccessTokenContextHandle) {
+	miniProgram.ctx.AccessTokenContextHandle = accessTokenContextHandle
+}
+
 // GetContext get Context
 func (miniProgram *MiniProgram) GetContext() *context.Context {
 	return miniProgram.ctx