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simple-text-message.js
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simple-text-message.js
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/**
* Copyright 2022 Google LLC.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// [START hangouts_chat_preview_link]
/**
* Responds to messages that have links whose URLs match URL patterns
* configured for link previewing.
*
* @param {Object} req Request sent from Google Chat.
* @param {Object} res Response to send back.
*/
exports.onMessage = (req, res) => {
if (req.method === 'GET' || !req.body.message) {
return res.send(
'Hello! This function is meant to be used in a Google Chat Space.');
}
// Checks for the presence of event.message.matchedUrl and responds with a
// text message if present
if (req.body.message.matchedUrl) {
return res.json({
'text': 'req.body.message.matchedUrl.url: ' +
req.body.message.matchedUrl.url,
});
}
// If the Chat app doesn’t detect a link preview URL pattern, it says so.
return res.json({'text': 'No matchedUrl detected.'});
};
// [END hangouts_chat_preview_link]