Note on S3 user permissions

The user associated with the accessKey and secretKey you use must have the appropriate permissions assigned to them. My user's IAM policy looks like:

{
    "Version": "2020-03-21",
    "Statement": [
        {
            "Sid": "stmt20200321",
            "Effect": "Allow",
            "Action": [
                "s3:PutObject",
                "s3:PutObjectVersionAcl"
            ],
            "Resource": [
                "arn:aws:s3:::my-bucket/uploads/*"
            ]
        }
    ]
}

Example

async function uploadToS3(){
  const file = {
    // `uri` can also be a file system path (i.e. file://)
    uri: "assets-library://asset/asset.PNG?id=655DBE66-8008-459C-9358-914E1FB532DD&ext=PNG",
    name: "image.png",
    type: "image/png"
  }

  const options = {
    keyPrefix: "uploads/",
    bucket: "your-bucket",
    region: "us-east-1",
    accessKey: "your-access-key",
    secretKey: "your-secret-key",
    successActionStatus: 201
  }

  try{
    const response = await RNS3.put(file, options)
    if (response.status === 201){
      console.log("Success: ", response.body)
      /**
       * {
       *   postResponse: {
       *     bucket: "your-bucket",
       *     etag : "9f620878e06d28774406017480a59fd4",
       *     key: "uploads/image.png",
       *     location: "https://your-bucket.s3.amazonaws.com/uploads%2Fimage.png"
       *   }
       * }
       */
    } else {
      console.log("Failed to upload image to S3: ", response)
    }
  } catch(error){
    console.log(error)
  }
}

Usage

put(file, options)

Upload a file to S3.

Arguments:

1. file

• uri required - File system URI, can be assets library path or file:// path
• name required - The name of the file, will be stored as such in S3
• type required - The mime type, also used for Content-Type parameter in the S3 post policy

2. options

• acl - The Access Control List of this object. Defaults to public-read
• keyPrefix - Prefix, or path to the file on S3, i.e. uploads/ (note the trailing slash)
• bucket required - Your S3 bucket
• region required - The region of your S3 bucket
• accessKey required - Your S3 AWSAccessKeyId
• secretKey required - Your S3 AWSSecretKey
• successActionStatus - HTTP response status if successful, defaults to 201
• awsUrl - AWS S3 url. Defaults to s3.amazonaws.com
• timeDelta - Devices time offset from world clock in milliseconds, defaults to 0

Returns an object that wraps an XMLHttpRequest instance and behaves like a promise, with the following additional methods:

• progress - accepts a callback which will be called with an event representing the progress of the upload. Event object is of shape
  • loaded - amount uploaded
  • total - total amount to upload
  • percent - number between 0 and 1 representing the percent completed
• abort - aborts the xhr instance

Examples:

RNS3.put(file, options)
  .progress((e) => console.log(e.loaded / e.total)); // or console.log(e.percent)

RNS3.put(file, option)
  .abort();