If you need to store images, videos, documents or other files and objects, you should save your objects not to a data base or disk, but to an Object Storage.

Documentation:
https://www.ng.bluemix.net/docs/services/ObjectStorage/index.html

Steps:
1. Get Access Token and Public URL
2. Get Account details
3. Create Container
4. Create Object

Get Access Token and Public URL

curl -X POST -H "Content-Type: application/json" -d '{
    "auth": {
        "identity": {
            "methods": [
                "password"
            ],
            "password": {
                "user": {
                    "id": "<userId>",
                    "password": "<password>"
                }
            }
        },
        "scope": {
            "project": {
                "id": "<projectId>"
            }
        }
    }
}' 'https://identity.open.softlayer.com/v3/auth/tokens'

This returns an ‘X-Subject-Token’ or the access token in the HTTP Header of the response, and configuration details with among other a catalog of endpoints for your object storage service.

"catalog": [
  {
    "endpoints": [
      {
        "region_id": "dallas",
        "url": "https://dal.objectstorage.open.softlayer.com/v1/<account>",
        "region": "dallas",
        "interface": "public",
        "id": "123"
      }
    ]
  }
]

You can use the public url in the region on your Object Storage service, to make the REST API calls to your object storage.

Get Account details

Request URI

GET {{objectstorage-public-url}}

Request HTTP Header

X-Auth-Token: <X-Subject-Token>

Response HTTP Header

X-Account-Bytes-Used → 0
X-Account-Container-Count → 1
X-Account-Object-Count → 1

Response Body

[
  {
    "count": 1,
    "bytes": 0,
    "name": "<containername>"
  }
]

Create Container

Request URI

PUT {{objectstorage-public-url}}/<container-name>

Request HTTP Header

X-Auth-Token: <X-Subject-Token>

Create Object

Request URI

PUT {{objectstorage-public-url}}/<container-name>/<object-name>

Request HTTP Header

X-Auth-Token: <X-Subject-Token>

Postman collection for Object Storage:
(just set the environment variables, but token seems to stay the same across sessions)
ObjectStore.Postman_collection.json