rapiq/dist/types.d.ts

A tiny library which provides utility types/functions for request and response query handling.

export type ObjectLiteral = Record<string, any>;
export type ObjectLiteralKeys<T extends ObjectLiteral> = {
    [K in keyof T as `${K & (string | number)}`]: T[K];
};
export type Flatten<Type> = Type extends Array<infer Item> ? Item : Type;
export type OnlyScalar<T> = T extends string | number | boolean | undefined | null ? T : never;
export type OnlySingleObject<T> = T extends {
    [key: string]: any;
} ? T : never;
export type OnlyObject<T> = Flatten<T> extends OnlySingleObject<Flatten<T>> ? T | Flatten<T> : never;
export type KeyWithOptionalPrefix<T, O extends string> = T extends string ? (`${O}${T}` | T) : never;
type PrevIndex = [never, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
export type SimpleKeys<T> = T extends ObjectLiteral ? ({
    [Key in keyof T & (string | number)]: Flatten<T[Key]> extends Record<string, any> ? (Flatten<T[Key]> extends Date ? `${Key}` : never) : `${Key}`;
}[keyof T & (string | number)]) : string;
export type NestedKeys<T, Depth extends number = 4> = T extends ObjectLiteral ? ([
    Depth
] extends [0] ? never : {
    [Key in keyof T & (string | number)]: Flatten<T[Key]> extends Record<string, any> ? (Flatten<T[Key]> extends Date ? `${Key}` : `${Key}.${NestedKeys<Flatten<T[Key]>, PrevIndex[Depth]>}`) : `${Key}`;
}[keyof T & (string | number)]) : string;
export type NestedResourceKeys<T, Depth extends number = 4> = T extends ObjectLiteral ? ([
    Depth
] extends [0] ? never : {
    [Key in keyof T & (string | number)]: Flatten<T[Key]> extends Record<string, any> ? Key | `${Key}.${NestedResourceKeys<Flatten<T[Key]>, PrevIndex[Depth]>}` : never;
}[keyof T & (string | number)]) : string;
export type TypeFromNestedKeyPath<T, Path extends string> = T extends ObjectLiteral ? {
    [K in Path]: K extends keyof T ? Flatten<T[K]> : K extends `${infer P}.${infer S}` ? Flatten<T[P]> extends Record<string, any> ? TypeFromNestedKeyPath<Flatten<T[P]>, S> : never : never;
}[Path] : never;
export {};
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