aws-sdk#EventBridge TypeScript Examples

The following examples show how to use aws-sdk#EventBridge. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: events.lambda.ts    From cloudstructs with Apache License 2.0 5 votes vote down vote up 
/**
 * Handle Slack events
 */
export async function handler(event: AWSLambda.APIGatewayProxyEvent): Promise<AWSLambda.APIGatewayProxyResult> {
  console.log('Event: %j', event);

  // Base API gateway response
  const response: AWSLambda.APIGatewayProxyResult = {
    statusCode: 200,
    body: '',
  };

  try {
    if (!process.env.SLACK_SIGNING_SECRET) throw new Error('The environment variable SLACK_SIGNING_SECRET is not defined');

    if (!event.body) throw new Error('Missing body');

    if (!event.headers['X-Slack-Signature']) throw new Error('Missing X-Slack-Signature');

    if (!event.headers['X-Slack-Request-Timestamp']) throw new Error('Missing X-Slack-Request-Timestamp');

    if (!verifyRequestSignature({
      body: event.body,
      requestSignature: event.headers['X-Slack-Signature'],
      requestTimestamp: parseInt(event.headers['X-Slack-Request-Timestamp'], 10),
      signingSecret: process.env.SLACK_SIGNING_SECRET,
    })) {
      response.statusCode = 403;
      return response;
    }

    const body = JSON.parse(event.body);
    console.log('Body: %j', body);

    if (body.type === 'url_verification') { // Slack URL verification, respond with challenge
      console.log('URL verification');
      response.body = JSON.stringify({ challenge: body.challenge });
      return response;
    }

    const eventBridge = new EventBridge({ apiVersion: '2015-10-07' });

    const putEvents = await eventBridge.putEvents({
      Entries: [
        {
          Detail: event.body,
          DetailType: 'Slack Event',
          Source: 'slack',
          Resources: [body.api_app_id],
          EventBusName: process.env.EVENT_BUS_NAME,
          Time: new Date(body.event_time),
        },
      ],
    }).promise();
    console.log('Put events: %j', putEvents);

    return response;
  } catch (err) {
    console.log(err);
    response.statusCode = 500;
    return response;
  }
}