Amazon S3上传图片 - 直接从浏览器使用角度js

Question

I am trying to upload images from my browser to Amazon S3 directly, using angular js.

Below is my code.

function _upload($files) {
                $scope.file = $files[0];
                $scope.creds = {
                    access_key: '***',
                    secret_key: '***',
                    bucket: 'sabari-test'
                };

                var bucket = new AWS.S3({
                    params: {
                        Bucket: $scope.creds.bucket
                    }
                });
                AWS.config.accessKeyId = $scope.creds.access_key;
                AWS.config.secretAccessKey = $scope.creds.secret_key;
                AWS.config.region = 'us-west-2';

                // AWS.

                if ($scope.file) {
                    // Perform File Size Check First
                    var fileSize = Math.round(parseInt($scope.file.size));
                    if (fileSize > $scope.sizeLimit) {
                        console.log('Sorry, your attachment is too big.');
                        return false;
                    }
                    // Prepend Unique String To Prevent Overwrites
                    var uniqueFileName = 'hai' + '-' + $scope.file.name;

                    var params = {
                        Key: uniqueFileName,
                        ContentType: $scope.file.type,
                        Body: $scope.file,
                        ServerSideEncryption: 'AES256'
                    };

                    bucket.putObject(params, function(err, data) {
                        if (err) {
                            console.log(err.message);
                            return false;
                        } else {
                            // Upload Successfully Finished
                            console.log('File Uploaded Successfully');
                        }
                    })
                } else {
                    // No File Selected
                    console.log('Please select a file to upload');
                }
            }

I get the below error:

"Missing credentials in config"

Please let me know what is the missing credential?

Thanks.

Answer 1

You need to replace these lines:

            var bucket = new AWS.S3({
                params: {
                    Bucket: $scope.creds.bucket
                }
            });
            AWS.config.accessKeyId = $scope.creds.access_key;
            AWS.config.secretAccessKey = $scope.creds.secret_key;
            AWS.config.region = 'us-west-2';

With this:

            var bucket = new AWS.S3({
                region = 'us-west-2',
                credentials: new AWS.Credentials($scope.creds.access_key, $scope.creds.secret_key)
            });

And then move the Bucket to your var params

                var params = {
                    Bucket: $scope.creds.bucket,
                    Key: uniqueFileName,
                    ContentType: $scope.file.type,
                    Body: $scope.file,
                    ServerSideEncryption: 'AES256'
                };