Building Block View :: Building Blocks

5. Building Block View

The building block view shows the static decomposition of the system into building blocks (modules, components, subsystems, classes, interfaces, packages, libraries, frameworks, layers, partitions, tiers, functions, macros, operations, data structures, …) as well as their dependencies (relationships, associations, …)

5.1. Landscape

5.2. Whitebox

Table 5.1 Building blocks
Web UI	Web UI application.
API	API application.
Database	Database.

Table 5.2 System interfaces
Admin	The admin is responsible for creating and managing auctions. When an auction is complete, the system will produce a transaction or API call that the admin can use to create the burn/redeem app on Manifold.
User	A user can use their ethereum wallet to bid on auctions.
Crypto Wallet	The crypto wallet is responsible for managing a user’s private keys.
Alchemy API	The system will use Alchemy’s NFT API to query holder count.

5.3. Building Blocks Level 2

5.3.1. Web UI

The Web UI is the main entry point for the system. It is responsible for displaying the current auctions and allowing users to bid on them.

Table 5.3 Building blocks
User Area	Contains views for unauthenticated users, and the ability to bid for users authenticated with a wallet.
Admin Area	Contains views for managing auctions.

Table 5.4 Interfaces
Crypto Wallet	The User Area will require a user to sign a transaction to validate wallet ownership.
API	The Web UI depends on the API for all backend operations.

5.3.2. API

The API is where all of the business logic and data access is performed. Server side API calls allow the app to be opaque to the user.

Table 5.5 Building blocks
Auction API	An admin will use the Auction API for creating and managing auctions.
Bid API	A user will use the Bid API for bidding on auctions.
Gallery API	The gallery will self update by using an API that pulls revealed 1/1’s.

Table 5.6 Interfaces
Database	All off-chain data will be stored in a database.
Alchemy API	The bid API will use the Alchemy API to query holder count. The gallery API will retrieve 1/1’s to display.

5.3.3. Database

The database is used to store data that is not on-chain.

Table 5.7 Building blocks
Auction Collection	Image, title, description, and timestamp for each auction.
Bid Collection	Bidder, amount, and timestamp for each bid.