This project demostrates how to create a Postgres Foreign Data Wrapper with Wasm, using the Wrappers framework.
This example reads the realtime GitHub events into a Postgres database.
├── src
│ └── lib.rs # The package source code. We will implement the FDW logic, in this file.
├── supabase-wrappers-wit # The Wasm Interface Type provided by Supabase. See below for a detailed description.
│ ├── http.wit
│ ├── jwt.wit
│ ├── routines.wit
│ ├── stats.wit
│ ├── time.wit
│ ├── types.wit
│ ├── utils.wit
│ └── world.wit
└── wit # The WIT interface this project will use to build the Wasm package.
└── world.witA Wasm Interface Type (WIT) defines the interfaces between the Wasm FDW (guest) and the Wasm runtime (host). For example, the http.wit defines the HTTP related types and functions can be used in the guest, and the routines.wit defines the functions the guest needs to implement.
To get started, visit the Wasm FDW developing guide.