modify method to POST to create SlackAppSettings

packages/app/src/components/Admin/SlackIntegration/SlackIntegration.jsx

@@ -72,7 +72,7 @@ const SlackIntegration = (props) => {
 
   const createSlackIntegrationData = async() => {
     try {
-      await appContainer.apiv3.put('/slack-integration-settings/slack-app-integrations');
+      await appContainer.apiv3.post('/slack-integration-settings/slack-app-integrations');
       fetchSlackIntegrationData();
       toastSuccess(t('admin:slack_integration.adding_slack_ws_integration_settings_successful'));
     }

packages/app/src/server/routes/apiv3/slack-integration-settings.js

@@ -359,7 +359,7 @@ module.exports = (crowi) => {
    * @swagger
    *
    *    /slack-integration-settings/slack-app-integrations:
-   *      put:
+   *      post:
    *        tags: [SlackIntegration]
    *        operationId: putSlackAppIntegrations
    *        summary: /slack-integration
@@ -368,7 +368,7 @@ module.exports = (crowi) => {
    *          200:
    *            description: Succeeded to create slack app integration
    */
-  router.put('/slack-app-integrations', loginRequiredStrictly, adminRequired, csrf, async(req, res) => {
+  router.post('/slack-app-integrations', loginRequiredStrictly, adminRequired, csrf, async(req, res) => {
     const { tokenGtoP, tokenPtoG } = await SlackAppIntegration.generateUniqueAccessTokens();
     try {
       const count = await SlackAppIntegration.countDocuments();