1. File Upload Google
2. Upload To Amazon S3
3. File Upload Sites

1 Create an instance of the AmazonS3Client class, by providing your AWS credentials. 2 Initiate multipart upload by executing the AmazonS3Client.InitiateMultipartUpload method. You will need to provide information required to initiate the multipart upload by creating an instance of the InitiateMultipartUploadRequest class. 3 Save the Upload ID that the AmazonS3Client.InitiateMultipartUpload method returns. You will need to provide this upload ID for each subsequent multipart upload operation. 4 Upload the parts. For each part upload, execute the AmazonS3Client.UploadPart method.

You will need to provide part upload information such as upload ID, bucket name, and the part number. You provide this information by creating an instance of the UploadPartRequest class. 5 Save the response of the AmazonS3Client.UploadPart method in a list. This response includes the ETag value and the part number you will later need to complete the multipart upload. 6 Repeat tasks 4 and 5 for each part. 7 Execute the AmazonS3Client.CompleteMultipartUpload method to complete the multipart upload.

File Upload Google

Hi, hope this is the correct place to ask for help! I've been trying for the last couple of days to upload a file with C# using the Canvas API. Currently most of us use server side solutions to upload files to Amazon S3 server. There are also AWS SDK for JavaScript to upload files to Amazon S3 server from client side. Uploading files from client side is faster than server side and best for large files. So in this tutorial you will learn how to upload files to Amazon S3 server using JavaScript. Figure 1: Service Integration. First Lets focus on uploading an image to S3. Uploading an Image to S3. For uploading, you will have to configure the API Gateway service by creating a new API.

The following C# code sample demonstrates the preceding tasks.

PUT Object Description This implementation of the PUT operation adds an object to a bucket. You must have WRITE permissions on a bucket to add an object to it. Amazon S3 never adds partial objects; if you receive a success response, Amazon S3 added the entire object to the bucket. Amazon S3 is a distributed system. If it receives multiple write requests for the same object simultaneously, it overwrites all but the last object written. Amazon S3 does not provide object locking; if you need this, make sure to build it into your application layer or use versioning instead.

To ensure that data is not corrupted traversing the network, use the Content-MD5 header. When you use this header, Amazon S3 checks the object against the provided MD5 value and, if they do not match, returns an error. Additionally, you can calculate the MD5 while putting an object to Amazon S3 and compare the returned ETag to the calculated MD5 value. Note To configure your application to send the request headers prior to sending the request body, use the 100-continue HTTP status code. For PUT operations, this helps you avoid sending the message body if the message is rejected based on the headers (e.g., because of authentication failure or redirect). For more information on the 100-continue HTTP status code, go to Section 8.2.3 of.

You can optionally request server-side encryption where Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts it for you when you access it. You have the option to provide your own encryption key or use AWS-managed encryption keys. For more information, go to in the Amazon Simple Storage Service Developer Guide. Storage Class Options Amazon S3 uses the Standard storage class by default to store newly created objects. The Standard storage class provides high durability and high availability. Depending on the performance needs in your use case scenario, you can optionally specify other storage classes. For more information, go to in the Amazon Simple Storage Service Developer Guide.

Access Permissions When uploading an object, you can optionally specify the accounts or groups that should be granted specific permissions on your object. There are two ways to grant the appropriate permissions using the request headers. Name Description Required Cache-Control Can be used to specify caching behavior along the request/reply chain. For more information, go to. Type: String Default: None Constraints: None No Content-Disposition Specifies presentational information for the object. For more information, go to. Type: String Default: None Constraints: None No Content-Encoding Specifies what content encodings have been applied to the object and thus what decoding mechanisms must be applied to obtain the media-type referenced by the Content-Type header field.

For more information, go to. Type: String Default: None Constraints: None No Content-Length The size of the object, in bytes. For more information, go to. Type: String Default: None Constraints: None Yes Content-MD5 The base64-encoded 128-bit MD5 digest of the message (without the headers) according to RFC 1864. This header can be used as a message integrity check to verify that the data is the same data that was originally sent. Although it is optional, we recommend using the Content-MD5 mechanism as an end-to-end integrity check.

For more information about REST request authentication, see in the Amazon Simple Storage Service Developer Guide. Type: String Default: None Constraints: None No Content-Type A standard MIME type describing the format of the contents.

For more information, go to. Type: String Default: binary/octet-stream Valid Values: MIME types Constraints: None No Expect When your application uses 100-continue, it does not send the request body until it receives an acknowledgment. If the message is rejected based on the headers, the body of the message is not sent. Type: String Default: None Valid Values: 100-continue Constraints: None No Expires The date and time at which the object is no longer able to be cached. For more information, go to. Type: String Default: None Constraints: None No x-amz-meta- Headers starting with this prefix are user-defined metadata. Within the PUT request header, the user-defined metadata is limited to 2 KB in size.

User-defined metadata is a set of key-value pairs. The size of user-defined metadata is measured by taking the sum of the number of bytes in the UTF-8 encoding of each key and value. Amazon S3 doesn't validate or interpret user-defined metadata.

Upload To Amazon S3

Type: String Default: None Constraints: None No x-amz-storage-class If you don't specify, Standard is the default storage class. Amazon S3 supports other storage classes. For more information, go to in the Amazon Simple Storage Service Developer Guide. Type: Enum Default: STANDARD Valid Values: STANDARD STANDARDIA REDUCEDREDUNDANCY Constraints: You cannot specify GLACIER as the storage class. To transition objects to the GLACIER storage class, you can use lifecycle configuration. For more information, go to in the Amazon Simple Storage Service Developer Guide. No x-amz-tagging Specifies a set of one or more tags you want to associated with the object.

These tags are stored in the tagging subresource associated with the object. To specify tags on an object, the requester must have s3:PutObjectTagging included in the list of permitted actions in their IAM policy. For more information about adding tags to an object, in the Amazon Simple Storage Service Developer Guide. Type: String Default: None Constraints: The encoding for tags will be URL query parameter encoding. The maximum size of this header is limited to 2 K.

No x-amz-website​-redirect-location If the bucket is configured as a website, redirects requests for this object to another object in the same bucket or to an external URL. Amazon S3 stores the value of this header in the object metadata. For information about object metadata, go to. In the following example, the request header sets the redirect to an object ( anotherPage.html) in the same bucket: x-amz-website-redirect-location: /anotherPage.html In the following example, the request header sets the object redirect to another website: x-amz-website-redirect-location: For more information about website hosting in Amazon S3, go to sections and in the Amazon Simple Storage Service Developer Guide. Type: String Default: None Constraints: The value must be prefixed by, '/', 'or 'The length of the value is limited to 2 KB. No Access Control List (ACL) Specific Request Headers Additionally, you can use the following access control–related headers with this operation.

By default, all objects are private: only the owner has full control. When adding a new object, you can grant permissions to individual AWS accounts or predefined Amazon S3 groups. These permissions are then used to create the Access Control List (ACL) on the object. For more information, go to. You can use one of the following two ways to grant these permissions. Name Description Required x-amz-grant-read Allows grantee to read the object data and its metadata.

Type: String Default: None Constraints: None No x-amz-grant-write Not applicable. This applies only when granting permission on a bucket. Type: String Default: None Constraints: None No x-amz-grant-read-acp Allows grantee to read the object ACL. Type: String Default: None Constraints: None No x-amz-grant-write-acp Allows grantee to write the ACL for the applicable object. Type: String Default: None Constraints: None No x-amz-grant-full-control Allows grantee the READ, READACP, and WRITEACP permissions on the object.

Type: String Default: None Constraints: None No You specify each grantee as a type=value pair, where the type can be one of the following. Important You cannot use an email address to specify a grantee for any AWS region that was created after 12/8/2014. The following regions were created after 12/8/2014: US East (Ohio), Canada (Central), Asia Pacific (Mumbai), Asia Pacific (Seoul), EU (Frankfurt), EU (London), EU (Paris), China (Beijing), China (Ningxia), and AWS GovCloud (US) regions. id – if value specified is the canonical user ID of an AWS account. uri – if granting permission to a predefined group. For example, the following x-amz-grant-read header grants read object data and its metadata permission to the AWS accounts identified by their email addresses.

X-amz-grant-read: emailAddress='xyz@amazon.com', emailAddress='abc@amazon.com' Server-Side Encryption Specific Request Headers You can optionally request Amazon S3 to encrypt data at rest using server-side encryption. Server-side encryption is about data encryption at rest, that is, Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts it for you when you access it. Depending on whether you want to use AWS-managed encryption keys or provide your own encryption keys, you use the following headers. Name Description Required x-amz-server-side​-encryption Specifies a server-side encryption algorithm to use when Amazon S3 creates an object. Type: String Valid Value: aws:kms, AES256 Yes x-amz-server-side-encryption-aws-kms-key-id If the x-amz-server-side-encryption is present and has the value of aws:kms, this header specifies the ID of the AWS Key Management Service (KMS) master encryption key that was used for the object.

Type: String Yes, if the value of x-amz-server-side-encryption is aws:kms x-amz-server-side-encryption-context If x-amz-server-side-encryption is present, and if its value is aws:kms, this header specifies the encryption context for the object. The value of this header is a base64-encoded UTF-8 string holding JSON with the encryption context key-value pairs. Type: String No. Name Description Required x-amz-server-side​-encryption​-customer-algorithm Specifies the algorithm to use to when encrypting the object. Type: String Default: None Valid Value: AES256 Constraints: Must be accompanied by valid x-amz-server-side-encryption-customer-key and x-amz-server-side-encryption-customer-key-MD5 headers. Yes x-amz-server-side​-encryption​-customer-key Specifies the customer-provided base64-encoded encryption key for Amazon S3 to use in encrypting data.

This value is used to store the object and then is discarded; Amazon does not store the encryption key. The key must be appropriate for use with the algorithm specified in the x-amz-server-side​-encryption​-customer-algorithm header. Type: String Default: None Constraints: Must be accompanied by valid x-amz-server-side-encryption-customer-algorithm and x-amz-server-side-encryption-customer-key-MD5 headers. Yes x-amz-server-side​-encryption​-customer-key-MD5 Specifies the base64-encoded 128-bit MD5 digest of the encryption key according to.

Amazon S3 uses this header for a message integrity check to ensure the encryption key was transmitted without error. Type: String Default: None Constraints: Must be accompanied by valid x-amz-server-side-encryption-customer-algorithm and x-amz-server-side-encryption-customer-key headers.

Yes For more information on Server-Side Encryption with Customer-Provided Encryption Keys (SSE-C), go to in the Amazon Simple Storage Service Developer Guide. Responses Response Headers This implementation of the operation can include the following response headers in addition to the response headers common to all responses.

For more information, see. Name Description x-amz-expiration If the object expiration is configured (see ), the response includes this header.

It includes the expiry-date and rule-id key-value pairs providing object expiration information. The value of the rule-id is URL encoded. Type: String x-amz-server-side​-encryption If you specified server-side encryption either with an AWS KMS or Amazon S3-managed encryption key in your PUT request, the response includes this header. It confirms the encryption algorithm that Amazon S3 used to encrypt the object.

Type: String x-amz-server-side-encryption-aws-kms-key-id If the x-amz-server-side-encryption is present and has the value of aws:kms, this header specifies the ID of the AWS Key Management Service (KMS) master encryption key that was used for the object. Type: String x-amz-server-side​-encryption​-customer-algorithm If server-side encryption with customer-provided encryption keys encryption was requested, the response will include this header confirming the encryption algorithm used. Type: String Valid Values: AES256 x-amz-server-side​-encryption​-customer-key-MD5 If server-side encryption using customer-provided encryption keys was requested, the response returns this header to provide roundtrip message integrity verification of the customer-provided encryption key. Type: String x-amz-version-id Version of the object. Type: String Response Elements This implementation of the operation does not return response elements. Special Errors This implementation of the operation does not return special errors. For general information about Amazon S3 errors and a list of error codes, see.

Examples Example 1: Upload an Object Sample Request The following request stores the image my-image.jpg in the bucket myBucket. HTTP/1.1 100 Continue HTTP/1.1 200 OK x-amz-id-2: LriYPLdmOdAiIfgSm/F1YsViT1LW94/xUQxMsF7xiEb1a0wiIOIxl+zbwZ163pt7 x-amz-request-id: 0A49CE4060975EAC Date: Wed, 12 Oct 2009 17:50:00 GMT ETag: '1b2cf535f328' Content-Length: 0 Connection: close Server: AmazonS3 If an expiration rule created on the bucket using lifecycle configuration applies to the object, you get a response with an x-amz-expiration header as shown in the following response. For more information, see in the Amazon Simple Storage Service Developer Guide. HTTP/1.1 100 Continue HTTP/1.1 200 OK x-amz-id-2: LriYPLdmOdAiIfgSm/F1YsViT1LW94/xUQxMsF7xiEb1a0wiIOIxl+zbwZ163pt7 x-amz-request-id: 0A49CE4060975EAC x-amz-version-id: 43jfkodU8493jnFJD9fjj3HHNVfdsQUIFDNsidf038jfdsjGFDSIRp Date: Wed, 12 Oct 2009 17:50:00 GMT ETag: 'fbacf535f68' Content-Length: 0 Connection: close Server: AmazonS3 Example 2: Upload an Object (Specify Storage Class) Sample Request: Specifying reduced redundancy storage class The following request stores the image, my-image.jpg, in the bucket, myBucket. The request specifies x-amz-storage-class header to request object be stored using the REDUCEDREDUNDANCY storage class.

HTTP/1.1 100 Continue HTTP/1.1 200 OK x-amz-id-2: LriYPLdmOdAiIfgSm/F1YsViT1LW94/xUQxMsF7xiEb1a0wiIOIxl+zbwZ163pt7 x-amz-request-id: 0A49CE4060975EAC Date: Wed, 12 Oct 2009 17:50:00 GMT ETag: '1b2cf535f328' Content-Length: 0 Connection: close Server: AmazonS3 Example 3:Upload an Object (Specify Access Permission Explicitly) Sample Request: Uploading an object and specifying access permissions explicitly The following request stores the file TestObject.txt in the bucket myBucket. The request specifies various ACL headers to grant permission to AWS accounts specified using canonical user ID and email address. HTTP/1.1 200 OK x-amz-id-2: RUxG2sZJUfS+ezeAS2i0Xj6w/ST6xqF/8pFNHjTjTrECW56SCAUWGg+7QLVoj1GH x-amz-request-id: 8D00BA Date: Fri, 13 Apr 2012 05:40:25 GMT ETag: 'dd038b344cf9553547f8b395a814b274' Content-Length: 0 Server: AmazonS3 Example 4: Upload an Object (Specify Access Permission Using Canned ACL) Sample Request: Using a canned ACL to set access permissions The following request stores the file TestObject.txt in the bucket myBucket.

File Upload Sites

The request uses an x-amz-acl header to specify a canned ACL to grant READ permission to the public. PUT /example-object HTTP/1.1 Host: example-bucket.s3.amazonaws.com Accept:./. Authorization: authorization string Date: Wed, 28 May 2014 19:31:11 +0000 x-amz-server-side-encryption-customer-key:g0lCfA3Dv40jZz5SQJ1ZukLRFqtI5WorC/8SEEXAMPLE x-amz-server-side-encryption-customer-key-MD5:ZjQrne1X/iTcskbY2example x-amz-server-side-encryption-customer-algorithm:AES256 In the response, Amazon S3 returns the encryption algorithm and MD5 of the encryption key you specified when uploading the object. Note that the ETag returned is not the MD5 of the object.