DEV Community

Cover image for How to upload multiple images to AWS S3 in react-native App - Part 2
Aneeqa Khan ✨
Aneeqa Khan ✨

Posted on

How to upload multiple images to AWS S3 in react-native App - Part 2

In my previous article, I explained how to get multiple images using react-native-image-crop-picker , and in this post, I'll cover how to upload those images to the AWS S3 server.

For that I used react-native-aws3, this library has no native dependencies so I preferred it over others libraries.

Install react-native-aws3

Please go through their website to install and set IAM's policy as mentioned.

Upload button and onPress

Now I created a simple button like this

Enter fullscreen mode Exit fullscreen mode

as react-native-aws3 upload a single image to S3 at a time but I have multiple images to upload so I used Promise.all.

 const uploadButtonClick = () => {
   let promises = [];, i) => {
Enter fullscreen mode Exit fullscreen mode

Here I created an empty array of promises to store each response of the upload call. Next, I am mapping images array to upload calls with a single image and promises.push is saving that response in promises array.


Next, I defined my uploadImageToS3 a method like its mentioned in the example of react-native-aws3.

const uploadImageToS3 = async image => {
  const options = {
    keyPrefix: "uploads/",
    bucket: "your-bucket",
    region: "us-east-1",
    accessKey: "your-access-key",
    secretKey: "your-secret-key",
    successActionStatus: 201
  const file = {
    uri: `${image.path}`,
    name: image.path.substring(image.path.lastIndexOf('/') + 1), //extracting filename from image path
    type: image.mime,

  return new Promise((resolve, reject) => {
    RNS3.put(file, options)
      .then(res => {
        if (res.status === 201) {
          const {postResponse} = res.body;
            src: postResponse.location,
        } else {
          console.log('error uploading to s3', res);
      .catch(err => {
        console.log('error uploading to s3', err);
Enter fullscreen mode Exit fullscreen mode

This method is returning the promise of URL/location of the image as an object having value src.
Now I combined all promises with Promise.all function.

Promise.all(promises).then(uploadedImgs => {
  console.log('Yayy, all images are uploaded successfully', uploadedImgs)
Enter fullscreen mode Exit fullscreen mode

uploadedImgs array will look like this

    src: 'https://<image-url>'
    src: 'https://<image-url>'
Enter fullscreen mode Exit fullscreen mode

In the above code, I am only displaying console message but I needed this array of images to send to another API call. So you can use this array in your state or send it to the database according to your need.

That's all for today, Thanks for reading!

Discussion (0)