sdk-test-view-cpp

C++ implementation of the SpacetimeDB view test module. This mirrors the Rust sdk-test-view module to ensure feature parity between the C++ and Rust SDKs.

Overview

This module tests the C++ bindings' view functionality including:

ViewContext views - Views with caller identity
AnonymousViewContext views - Views without caller identity
Optional return types - std::optional<T>
Vector return types - std::vector<T>
Table joins - Combining data from multiple tables
Filtering - Using indexed fields for efficient queries
Complex queries - Multi-table joins with filtering logic

Tables

player - Player entities with unique identities
player_level - Player levels indexed for filtering
player_location - Player positions with active status

Views

my_player

Returns the caller's player record.

Context: ViewContext (requires sender)
Returns: std::optional<Player>

my_player_and_level

Returns the caller's player joined with their level.

Context: ViewContext (requires sender)
Returns: std::optional<PlayerAndLevel>

players_at_level_0

Returns all players at level 0.

Context: AnonymousViewContext (no sender needed)
Returns: std::vector<Player>

nearby_players

Returns all active players within 5 units of the caller.

Context: ViewContext (requires sender)
Returns: std::vector<PlayerLocation>

Building

emcmake cmake -B build
cmake --build build

The output will be build/lib.wasm.