How to directly access the Object Storage API without using SDK

Case descriptionCase description

You need to exchange data directly with Object Storage, bypassing the SDKs for supported programming languages.

SolutionSolution

The Authorization header for the API request has the format: "Authorization: AWS <key_ID>:<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 SHA-256 hashing algorithm (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="content_type_of_the_object_to_upload" ;\
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 running your request, make sure to specify the following:

• file: Name of the file to upload to the bucket as an object.
• bucket: Name of the bucket to upload data to.
• s3Key and s3Secret: ID and secret of the service account's static access key.
• contentType: MIME type of the object being uploaded, e.g., text/plain.