Marketplace Viewer

The MarketplaceViewer contract acts as a viewer for the Marketplace contract. It provides functions that allow users to retrieve Offers and Deals in a paginated manner. Its aim is to improve the readability and accessibility of the data stored in the Marketplace contract.

Public State Variables

• marketplace: This is a state variable that holds a reference to the main Marketplace contract. This enables the MarketplaceViewer to access the functions and state of the Marketplace.

Functions

getPaginatedOffers

Retrieves a page of offers starting from a specific offer ID up to the specified page size.

function getPaginatedOffers(
    uint marketplaceId,
    uint start,
    uint pageSize
) external view returns (
    Marketplace.Offer[] memory results,
    uint lastAccessedId,
    uint autoIncrement,
    uint totalItems
);

Parameters:

Name	Type
marketplaceId	uint	The id of the marketplace.
start	uint	The starting offer ID.
pageSize	uint	The number of offers to retrieve.

Return values:

Type
Offer[] memory	An array of offers.
uint	The last accessed offer ID.
uint	The auto-increment value of the marketplace for offers.
uint	The total number of offers.

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getPaginatedDeals

Fetches deals either associated with a provider or a client in a paginated manner.

function getPaginatedDeals(
    uint marketplaceId,
    address _address,
    bool isProvider,
    uint start,
    uint pageSize
) external view returns (
    Marketplace.Deal[] memory results,
    uint totalItems
);

Parameters:

Name	Type
marketplaceId	uint	The id of the marketplace.
_address	address	The address of the provider or client.
isProvider	bool	A boolean to determine if the address is of a provider or client.
start	uint	Starting index for pagination.
pageSize	uint	The number of deals to retrieve.

Return values:

Type
Marketplace.Deal[] memory	An array of deals.
uint	The total number of deals for the provided address.

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note

This is a high-level technical breakdown. For a deep understanding of each function's inner workings and logic, refer to the smart contract's actual implementation.