A SmartFile Open Source project. Read more about how SmartFile uses and contributes to Open Source software.

Summary

This is an API library (Java) for SmartFile. This library includes two API clients. Each one represents one of the supported authentication methods. BasicClient is used for HTTP Basic authentication, using an API key and password. OAuthClient is used for OAuth (version 1) authentication, using tokens, which will require user interaction to complete authentication with the API.

Both clients provide a thin wrapper around an HTTP library, taking care of some of the mundane details for you. The intended use of this library is to refer to the API documentation to discover the API endpoint you wish to call, then use the client library to invoke this call.

SmartFile REST API information is available at the SmartFile developer site.

Installation

via source code / GitHub.

$ git clone https://github.com/smartfile/client-java.git

More information is available at GitHub

Usage

Choose Basic authentication method, then continue to use the SmartFile API. OAuth authentication is still under development. See Known Issues below.

Some of the details this library takes care of are:

• Encoding and decoding of parameters and return values. You deal with Java types only.
• URLs, using the API version, endpoint, and object ID, the URL is created for you.
• Authentication. Provide your API credentials to this library, it will take care of the details.

Basic Authentication

sample Java code:

import com.smartfile.api.*;
BasicClient api = new BasicClient("**********", "**********");
api.setApiUrl("https://app.smartfile.com");
String result = responseToString(api.get("/ping"));
System.out.println("Ping test:");
System.out.println(result);

OAuth Authentication

Authentication using OAuth authentication is bit more complicated, as it involves tokens and secrets. See Known Issues below.

Calling endpoints

Once you instantiate a client, you can use the get/put/post/delete methods to make the corresponding HTTP requests to the API. There is also a shortcut for using the GET method, which is to simply invoke the client.

Some endpoints accept an ID, this might be a numeric value, a path, or name, depending on the object type. For example, a user's id is their unique username. For a file path, the id is it's full path.

You should start by using the ping example above. The ping endpoint does not require authentication and you can verify network connectivity to the api is working. Second call an endpoint such as whoami below. This will verify you can call a simple GET api endpoint with authentication.

sample Java code:

import com.smartfile.api.*;
BasicClient api = new BasicClient("**********", "**********");
api.setApiUrl("https://app.smartfile.com");
String result = responseToString(api.get("/whoami"));
System.out.println("Whoami test:");
System.out.println(result);

File transfers

Once you have verified network connectivity and authentication, you are ready for more complex api operations. Uploading and downloading files is supported.

To upload a file:

import com.smartfile.api.*;
BasicClient api = new BasicClient("**********", "**********");
api.setApiUrl("https://app.smartfile.com");
// @TODO

Downloading is automatic, if the 'Content-Type' header indicates content other than the expected JSON return value, then a file-like object is returned.

To download a file:

import com.smartfile.api.*;
BasicClient api = new BasicClient("**********", "**********");
api.setApiUrl("https://app.smartfile.com");
InputStream in = api.get("/path/data","/YourFolder/remote-file.txt");
FileOutputStream out = new FileOutputStream("local-file.txt");
int c;
while ((c = in.read()) != -1) {
    out.write(c);
}
out.close();

Tasks

Operations are long-running jobs that are not executed within the time frame of an API call. For such operations, a task is created, and the API can be used to poll the status of the task.

Known Issues

• OAuth in the Java client is still under development; use an API Key (basic authentication) at this time.