Add channel access token v2.1 api

Author: kimoto

lib/line/bot/client.rb

@@ -102,6 +102,59 @@ def revoke_channel_token(access_token)
         post(endpoint, endpoint_path, payload, headers)
       end
 
+      # Issue channel access token v2.1
+      #
+      # @param grant_type [string] client_assertion
+      #
+      # @return [Net::HTTPResponse]
+      def issue_channel_access_token_21(jwt)
+        channel_id_required
+        channel_secret_required
+
+        endpoint_path = '/oauth2/v2.1/token'
+        payload = uri.encode_www_form(
+          grant_type: 'client_credentials',
+          client_assertion_type: 'urn:ietf:params:oauth:client-assertion-type:jwt-bearer',
+          client_assertion: jwt
+        )
+        headers = { 'content-type' => 'application/x-www-form-urlencoded' }
+        post(endpoint, endpoint_path, payload, headers)
+      end
+
+      # Revoke channel access token v2.1
+      #
+      # @return [Net::HTTPResponse]
+      def revoke_channel_access_token_21(access_token)
+        channel_id_required
+        channel_secret_required
+
+        endpoint_path = '/oauth2/v2.1/revoke'
+        payload = URI.encode_www_form(
+          client_id: client_id,
+          client_secret: client_secret,
+          access_token: access_token
+        )
+        headers = { 'Content-Type' => 'application/x-www-form-urlencoded' }
+        post(endpoint, endpoint_path, payload, headers)
+      end
+
+      # Get all valid channel access token key IDs v2.1
+      #
+      # @return [Net::HTTPResponse]
+      def get_channel_access_token_key_ids_21(jwt)
+        channel_id_required
+        channel_secret_required
+
+        endpoint_path = '/oauth2/v2.1/kid'
+        payload = uri.encode_www_form(
+          grant_type: 'client_credentials',
+          client_assertion_type: 'urn:ietf:params:oauth:client-assertion-type:jwt-bearer',
+          client_assertion: jwt
+        )
+        headers = { 'content-type' => 'application/x-www-form-urlencoded' }
+        post(endpoint, endpoint_path, payload, headers)
+      end
+
       # Push messages to a user using user_id.
       #
       # @param user_id [String] User Id