Send an Alert to MS Teams from AWS SNS -> Lambda (axios & superagent example)

send-alert-to-teams.ts

import { SNSEvent } from 'aws-lambda';
import superagent from 'superagent';

function envkey(key: string): string {
    if (!process.env[key]) {
        throw new Error(`Missing mandatory environment variable: ${key}`);
    }
    return process.env[key] as string;
}

const teamsCard = {
    '@type': 'MessageCard',
    '@context': 'http://schema.org/extensions',
    themeColor: 'd70000',
    summary: 'something',
    sections: [
        {
            activityTitle: 'something',
            activitySubtitle: 'something',
            activityImage: 'https://www.antstack.io/static/0ebb2099f6918877f421c198d07cc5ba/f3583/CDK.png',
            facts: [
                {
                    name: 'Event',
                    value: 'something',
                },
            ],
            markdown: true,
        },
    ],
    potentialAction: [
        {
            '@type': 'ActionCard',
            name: 'Change status',
            inputs: [
                {
                    '@type': 'MultichoiceInput',
                    id: 'list',
                    title: 'Select a status',
                    isMultiSelect: 'false',
                    choices: [
                        {
                            display: 'Acknowledged',
                            value: '1',
                        },
                        {
                            display: 'New',
                            value: '2',
                        },
                        {
                            display: 'Closed',
                            value: '3',
                        },
                    ],
                },
            ],
        },
    ],
};

const url = envkey('url');

export const handler = async (event: SNSEvent) => {
    // eslint-disable-next-line no-console
    console.log('Received SNS event:', JSON.stringify(event, null, 2));
    const records = event.Records.map(async (record) => {
        const card = teamsCard;
        card.sections[0].facts.push({
            name: 'Kind',
            value: 'ALERT',
        });
        card.sections[0].facts.push({
            name: 'Message',
            value: record.Sns.Message,
        });
        // NOTE if certain fields exist on message, you could add them to the facts or change themeColor / image asset
        // eslint-disable-next-line no-console
        console.log('Constructed Teams card:', JSON.stringify(card, null, 2));
        await postMessageToTeamsSuperAgent(card, url);
    });
    await Promise.all(records);
};

// eslint-disable-next-line @typescript-eslint/no-unused-vars
async function postMessageToTeams(card: unknown, url: string) {
    try {
        const response = await axios.post(url, card, {
            headers: {
                'content-type': 'application/vnd.microsoft.teams.card.o365connector',
            },
        });
        return `${response.status} - ${response.statusText}`;
    } catch (err) {
        // eslint-disable-next-line no-console
        console.log(err);
        return err;
    }
}

// eslint-disable-next-line @typescript-eslint/no-unused-vars
// eslint-disable-next-line @typescript-eslint/no-explicit-any
async function postMessageToTeamsSuperAgent(card: any, url: string) {
    try {
        const response = await superagent.post(url).set('content-type', 'application/vnd.microsoft.teams.card.o365connector').send(JSON.stringify(card));
        return response;
    } catch (err) {
        // eslint-disable-next-line no-console
        console.log(err);
        return err;
    }
}