Accessing Object Storage API directly, bypassing the SDK

Issue descriptionIssue description

You need to interact directly with Object Storage, bypassing the SDKs available for different programming languages.

SolutionSolution

The Authorization header for the service request has the format: "Authorization: AWS <key_kd>:<signature>", where:

• Authorization: AWS: Constant value.
• <key_id>: ID of the service account's static access key (without angle brackets).
• <signature>: HMAC request signature using the SHA256 hashing function (without angle brackets).

Example:
Authorization: AWS YCAJEsU4EP6Dyo6QiHhPHz4dO:/CQuut9oew7fUoKorITnCcg2VlA=

Sample Object Storage request using Sample Object Storage request using curl

Uploading an object to a bucket:

file='file_name' ;\
bucket='bucket_name' ;\
resource="/${bucket}/${file}" ;\
contentType="uploaded object content-type" ;\
dateValue=`date -R` ;\
stringToSign="PUT\n\n${contentType}\n${dateValue}\n${resource}" ;\
s3Key='static_access_key_ID' ;\
s3Secret='secret_key' ;\
signature=`echo -en ${stringToSign} | openssl sha1 -hmac ${s3Secret} -binary | base64` ;\
curl -vvv -X PUT -T "${file}" \
  -H "Host: ${bucket}.storage.yandexcloud.net" \
  -H "Date: ${dateValue}" \
  -H "Content-Type: ${contentType}" \
  -H "Authorization: AWS ${s3Key}:${signature}" \
  https://${bucket}.storage.yandexcloud.net/${file}

Before sending the request, make sure to specify the following parameters:

• file: Name of the file to be uploaded to the bucket as an object.
• bucket: Name of the bucket to upload data to.
• s3Key and s3Secret: ID and secret of the Static access key of the service account.
• contentType: MIME type of the uploaded object, for example: text/plain.