Sample: Send a message on Google Chat with Node `axios`

card.js

const axios = require(`axios`)

// Pass incoming webhook URL with environment variable `WEBHOOK_URL`.
const WEBHOOK_URL = process.env.WEBHOOK_URL

const title = `Hi`
const subtitle = `Hello`
const paragraph = `Hasta La Vista, Baby.`
const widget = { textParagraph: { text: paragraph } }
axios.post(WEBHOOK_URL, {
  cards: [
    {
      header: {
        title: title,
        subtitle, subtitle,
      },
      sections: [
        {
          widgets: [widget],
        },
      ],
    },
  ],
})
.then((res) => {
  console.log(res)
})
.catch((err) => {
  console.error(err.toJSON())
})

simple_text.js

const axios = require(`axios`)

// Pass incoming webhook URL with environment variable `WEBHOOK_URL`.
const WEBHOOK_URL = process.env.WEBHOOK_URL

const text = `Hello`
axios.post(WEBHOOK_URL, {
  text: text,
})
.then((res) => {
  console.log(res)
})
.catch((err) => {
  console.error(err.toJSON())
})