rudeshark.net/src/server/api/get-params.ts
2018-07-05 23:36:07 +09:00

28 lines
590 B
TypeScript

import { Context } from 'cafy';
type Defs = {
params: { [key: string]: Context<any> }
};
export default function <T extends Defs>(defs: T, params: any): [{
[P in keyof T['params']]: ReturnType<T['params'][P]['get']>[0];
}, Error] {
const x: any = {};
let err: Error = null;
Object.keys(defs.params).some(k => {
const [v, e] = defs.params[k].get(params[k]);
if (e) {
err = e;
return true;
} else {
if (v === undefined && defs.params[k].data.default) {
x[k] = defs.params[k].data.default;
} else {
x[k] = v;
}
return false;
}
});
return [x, err];
}