How can we use OVH s3 api to access ovh cloud storage in java

Question

I want to use ovh s3 api to access ovh cloud storage in java using keystore, secret key , consumer key and region. So using that i can upload files on ovh cloud storage .

Answer 1

Before using Java to connect to your backend I suggest you validate your connection with the CLI client like following

• Get your tokens you will need to generated them as explained in this documentation : https://docs.ovh.com/gb/en/storage/getting_started_with_the_swift_S3_API/

  Important steps are :

  1. Source your openrc file

  user@host:~$ source <user_name>-openrc.sh
  

  2. create your ec2 credentials
     You will get a block with it as a response from this call

  user@host:~$ openstack ec2 credentials create
  

  3. edit your aws credentials
     be sure to provide the region and correct links to OVHcloud storage

  user@host:~$ cat ~/.aws/credentials
  
  [default]
  aws_access_key_id = <access_key>
  aws_secret_access_key = <secret_key>
  
  user@host:~$ cat ~/.aws/config
  
  [plugins]
  endpoint = awscli_plugin_endpoint
  
  [profile default]
  region = <region>
  s3 =
    endpoint_url = https://s3.<region>.cloud.ovh.net
    signature_version = s3v4
  s3api =
    endpoint_url = https://s3.<region>.cloud.ovh.net
  

• Validate the connectivity of your bucket by listing your OVHcloud storage objects.

  aws --profile default s3 ls
  

Then you can connect from java code you can use the code sample from this post answer Setting AWS S3 Region

AWSCredentials cred = new BasicAWSCredentials(<accessKey>,<secretKey>);
AmazonS3 s3client = AmazonS3ClientBuilder.standard()
.withCredentials(new AWSStaticCredentialsProvider(cred))
.withClientConfiguration(<your configuration>)
.withRegion(Region.getRegion(Regions.AP_SOUTH_1));

Important thing is to provide the endpoint/region because sdk defaults to US_WEST region