SDKs overview

Dropbox offers a suite of Software Development Kits (SDKs) to facilitate integration with its cloud storage platform. These SDKs are designed to abstract the underlying HTTP API, simplifying common tasks such as authentication, file uploads, downloads, and metadata management. By using an SDK, developers can interact with Dropbox services using native language constructs, reducing the boilerplate code required for API requests and response parsing. The official SDKs are supported and maintained by Dropbox, ensuring compatibility with the latest API versions and features. In addition to official offerings, a vibrant community contributes various third-party libraries and tools, extending the reach and functionality for niche use cases or unsupported languages.

The Dropbox API itself is a RESTful interface, primarily using JSON for request and response bodies, and OAuth 2.0 for authorization. Developers can choose to interact directly with the Dropbox HTTP API, but SDKs are generally recommended for streamlining development and handling complexities like token refreshing and error handling. The API supports a range of operations, from simple file manipulation to more advanced features like shared folder management and webhooks for real-time notifications.

Official SDKs by language

Dropbox provides official SDKs for several popular programming languages, each designed to offer a consistent and idiomatic interface to the Dropbox API. These SDKs are actively maintained and are the recommended approach for integrating Dropbox functionality into applications. Each SDK handles aspects like request signing, error handling, and data serialization/deserialization, allowing developers to focus on application logic. For a complete list of supported features and detailed API calls for each SDK, refer to the official Dropbox developer documentation.

Language Package Name Installation Command Maturity
Python dropbox pip install dropbox Stable
Java com.dropbox.core:dropbox-core-sdk Gradle: implementation 'com.dropbox.core:dropbox-core-sdk:5.4.0'
Maven: <dependency><groupId>com.dropbox.core</groupId><artifactId>dropbox-core-sdk</artifactId><version>5.4.0</version></dependency>
Stable
Go github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox go get github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox Stable (Community-maintained, endorsed by Dropbox)
Swift SwiftyDropbox Swift Package Manager: Add dependency to https://github.com/dropbox/SwiftyDropbox.git Stable
JavaScript dropbox npm install dropbox or yarn add dropbox Stable
C# Dropbox.Api Install-Package Dropbox.Api (NuGet) Stable

Installation

Installing a Dropbox SDK typically involves using the package manager specific to the programming language. The following provides general installation instructions for the primary supported languages. Developers should consult the Dropbox developer documentation for the most current and detailed installation steps, including any prerequisites or environment setup.

Python

The Python SDK can be installed using pip, the Python package installer:

pip install dropbox

Java

For Java projects, you can add the Dropbox Core SDK as a dependency using Maven or Gradle. The following examples show the typical configuration for Gradle and Maven, respectively:

Gradle:

dependencies {
    implementation 'com.dropbox.core:dropbox-core-sdk:5.4.0'
}

Maven:

<dependency>
    <groupId>com.dropbox.core</groupId>
    <artifactId>dropbox-core-sdk</artifactId>
    <version>5.4.0</version>
</dependency>

Go

The unofficial Go SDK, which is widely adopted and endorsed by Dropbox, can be installed using the go get command:

go get github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox

Swift

For Swift projects, the SwiftyDropbox SDK is typically integrated using Swift Package Manager (SPM). In your Xcode project, go to File > Add Packages and enter the repository URL:

https://github.com/dropbox/SwiftyDropbox.git

JavaScript

The JavaScript SDK can be installed via npm or Yarn:

npm:

npm install dropbox

Yarn:

yarn add dropbox

C#

The C# SDK is available as a NuGet package and can be installed using the NuGet Package Manager Console:

Install-Package Dropbox.Api

Alternatively, you can add it via the NuGet Package Manager GUI in Visual Studio.

Quickstart example

This quickstart example demonstrates how to authenticate with the Dropbox API and list the contents of a Dropbox folder using the Python SDK. Before running this code, you need to create a Dropbox app and obtain an access token. Ensure your app has the necessary permissions (e.g., files.metadata.read).


import dropbox

# Replace with your actual Dropbox access token
DROPBOX_ACCESS_TOKEN = "YOUR_ACCESS_TOKEN"

def list_folder_contents(path):
    try:
        dbx = dropbox.Dropbox(DROPBOX_ACCESS_TOKEN)
        
        # List contents of the specified path
        res = dbx.files_list_folder(path)
        
        print(f"Contents of '{path}':")
        for entry in res.entries:
            if isinstance(entry, dropbox.files.FileMetadata):
                print(f"  File: {entry.name} (ID: {entry.id}) - Size: {entry.size} bytes")
            elif isinstance(entry, dropbox.files.FolderMetadata):
                print(f"  Folder: {entry.name} (ID: {entry.id})")
            
    except dropbox.exceptions.AuthError as err:
        print("Authentication error: ", err)
    except dropbox.exceptions.ApiError as err:
        print("API error: ", err)
    except Exception as err:
        print("An unexpected error occurred: ", err)

# Example usage: List contents of the root folder
if __name__ == "__main__":
    list_folder_contents("") # Empty string for root folder

This script initializes the Dropbox client with an access token, then calls files_list_folder to retrieve metadata for items within the specified path. It then iterates through the results, printing the name and type of each file or folder. Error handling for authentication and API-specific issues is included for robustness. For more advanced operations, such as uploading files or managing sharing, refer to the extensive Dropbox Python SDK documentation.

Community libraries

While Dropbox provides official SDKs for several languages, the broader developer community also contributes a variety of libraries and tools that extend functionality or provide support for other platforms and languages. These community-driven projects can offer alternative approaches, specialized features, or integrations with other frameworks. Developers should evaluate community libraries based on their project's requirements, activity of the maintainers, and compatibility with the latest Dropbox API versions.

One notable example is the unofficial Go SDK, which is widely used and endorsed by Dropbox itself, filling a gap for Go developers. Other community contributions often appear in package registries like npm for JavaScript, PyPI for Python, or GitHub for various languages, offering wrappers or tools for specific use cases not covered by official SDKs. For instance, developers might find libraries focused on desktop integrations, command-line tools, or specific web framework integrations. When considering a community library, it's advisable to check its GitHub repository for active development, issue resolution, and community support, as well as ensure it aligns with security best practices, such as those outlined by the OAuth 2.0 specification for secure authorization.

While Dropbox's official documentation primarily focuses on its own SDKs, community forums and developer communities are excellent resources for discovering and discussing these third-party tools. Always verify the authenticity and security of any third-party library before integrating it into a production application.