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| interface RpcModules { | |
| "example-remote-module": MapReturnTypesToPromise< | |
| typeof import("example-remote-module") | |
| >; | |
| } | |
| export function importRemote<S extends keyof RpcModules>( | |
| module: S | |
| ): RpcModules[S] { | |
| return new Proxy({} as any, { | |
| get(_t, func) { | |
| return async (...args: unknown[]) => { | |
| return fetch("/api/rpc", { | |
| method: "POST", | |
| // TODO: Use a more powerful serializer | |
| body: JSON.stringify({ module, func, args }), | |
| headers: { "content-type": "application/json" }, | |
| }) | |
| .then((r) => r.json()) | |
| .then((j) => { | |
| if (j.error) { | |
| // TODO: Standardize error format | |
| throw j.error.message; | |
| } | |
| return j.result; | |
| }); | |
| }; | |
| }, | |
| }); | |
| } | |
| type MapReturnTypesToPromise<T extends Record<string, any>> = { | |
| [k in keyof T]: MapReturnTypeToPromise<T[k]>; | |
| }; | |
| type Promisify<T> = T extends Promise<any> ? T : Promise<T>; | |
| type MapReturnTypeToPromise<T> = T extends ( | |
| ctx: any, | |
| ...args: infer A | |
| ) => infer R | |
| ? (...args: A) => Promisify<R> | |
| : never; |
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