How to create a Screenshot API endpoint in your existing express app

// our express js endpoint
app.get("/screenshot", async (req, res) => {
  // get your API key from https://www.screenshotbuddy.com/dashboard/api-keys
  const screenshotBuddyApiKey = "your_api_key"
  // reading query params from request URL
  const query = req.query
  try {
    const response = await fetch("https://api.screenshotbuddy.com/render", {
      method: "POST",
      headers: {
        authorization: `Bearer ${screenshotBuddyApiKey}`,
        "Content-Type": "application/json",
      },
      // passing query params to screenshotbuddy.com API
      body: JSON.stringify(query),
    })

    // reading response from screenshotbuddy.com API
    const data = await response.json()
    // checking response status
    if (data?.status !== "completed") {
      return res.status(500).send("Server Error")
    }

    // response will include a screenshotUrl, we will download it and send as response
    const { screenshotUrl } = data
    const imageResponse = await fetch(screenshotUrl)
    const blob = await imageResponse.blob()
    // Set the content type for the response reading from blob
    res.setHeader("Content-Type", blob.type)

    // Send the screenshot image as a response
    res.send(Buffer.from(await blob.arrayBuffer()))
  } catch (error) {

    res.status(500).send("Internal Server Error")
  }
})