ii try to convert image form url

javascript
axios.get('https://i.ibb.co/k1S3mfT/toincode.jpg', { responseType: 'arraybuffer' }).then((response) => {
  workflow.answer = Buffer.from(response.data).toString('base64')

})

and I get this error https://cdn.discordapp.com/attachments/1224002783204741230/1224002783611584552/image.png?ex=661be86c&is=6609736c&hm=e1e4fe1fedf06f56c70b588d81c5c471ebcf2faf82c3dd2eea5e24d8acf75ab1&

Hey there 👋 This code demonstrates how to convert an image URL to a Base64 string using JavaScript. It uses the

fetch

function to retrieve the image data from the specified URL and then converts it to a Base64 string 🙂

javascript
fetch('https://i.natgeofe.com/n/4f5aaece-3300-41a4-b2a8-ed2708a0a27c/domestic-dog_thumb_square.jpg')

This line uses the

fetch

function to make an HTTP request to the specified URL, which is the URL of the image you want to convert to Base64. The

fetch

function returns a Promise that resolves with the response from the server.

javascript
.then(response => response.blob())

This is a method chained to the Promise returned by

fetch

. It takes the response from the server and converts it to a Blob object using the

response.blob()

method. A Blob is a file-like object that represents raw binary data. This line returns a new Promise that resolves with the Blob object.

javascript
.then(blob => {
  const reader = new FileReader();
  reader.onloadend = () => {
    workflow.answer = reader.result;
    console.log(workflow.answer);
  };
  reader.readAsDataURL(blob);
})

This is another method chained to the Promise returned by

response.blob()

. It takes the Blob object and does the following: 1.

const reader = new FileReader();

creates a new

FileReader

object, which is a built-in JavaScript object that can read the contents of Blob or File objects. 2.

reader.onloadend = () => { ... };

sets a callback function that will be executed when the reading operation is complete. 3.

workflow.answer = reader.result;

assigns the result of the reading operation to the `answer`variable that you already have in Botpress. The

reader.result

property contains the Base64-encoded string representation of the image data. 4.

console.log(workflow.answer);

logs the Base64 string to the console. 5.

reader.readAsDataURL(blob);

starts the reading operation on the Blob object. This method converts the Blob to a Base64-encoded string and stores the result in the

reader.result

property.

javascript
.catch(error => {
  console.error('Error fetching image:', error);
});

This is a method chained to the Promise chain to handle any errors that may occur during the fetch or conversion process. If an error occurs, the callback function passed to

catch

will be executed, and the error will be logged to the console using

console.error

. You can replace the URL of the image with a variable in Botpress.

javascript
fetch('workflow.URL')

This variable would contain a URL sent from a user. Here is the complete code, which you can copy into an execute code card in your flow and use.

javascript
fetch('https://i.ibb.co/k1S3mfT/toincode.jpg')
  .then(response => response.blob())
  .then(blob => {
    const reader = new FileReader();
    reader.onloadend = () => {
      workflow.answer = reader.result
      console.log(workflow.answer)
    };
    reader.readAsDataURL(blob);
  })
  .catch(error => {
    console.error('Error fetching image:', error);
  });

thanks is work but the varible storge the data after the flow end https://cdn.discordapp.com/attachments/1224002783204741230/1224067172163387594/image.png?ex=661c2463&is=6609af63&hm=fbd60b82646ccd274a74901b21fe3a81aa4da70d556efa3112aeda9771174191&

You can add await

thanks it's work

Happy to hear that