dibbo Comments - Answer Overflow

Topics

dibbo

•Created by dibbo on 11/3/2024 in #questions

Generic middleware validator

I think that should show the issue, thanks for looking into this

6 replies

•Created by dibbo on 11/3/2024 in #questions

Generic middleware validator

https://github.com/bgribben/type-issue

6 replies

•Created by dibbo on 11/3/2024 in #questions

Generic middleware validator

Sure. I've moved the call outside of the middleware chain i.e.

const test = validateBody(schema);

const test = validateBody(schema);

and I'm still seeing the error so I think we can rule out use/handler interfering with it. Here are the other types

// From @middy/core
declare type MiddlewareFn<
  TEvent = any,
  TResult = any,
  TErr = Error,
  TContext extends LambdaContext = LambdaContext,
  TInternal extends Record<string, unknown> = {}
> = (request: Request<TEvent, TResult, TErr, TContext, TInternal>) => any

export interface MiddlewareObj<
  TEvent = unknown,
  TResult = any,
  TErr = Error,
  TContext extends LambdaContext = LambdaContext,
  TInternal extends Record<string, unknown> = {}
> {
  before?: MiddlewareFn<TEvent, TResult, TErr, TContext, TInternal>
  after?: MiddlewareFn<TEvent, TResult, TErr, TContext, TInternal>
  onError?: MiddlewareFn<TEvent, TResult, TErr, TContext, TInternal>
  name?: string
}

// My own ValidatedBody type 
type ValidatedBody<T> = Omit<APIGatewayProxyEventV2, "body"> & {
  body: T;
};

// From @middy/core
declare type MiddlewareFn<
  TEvent = any,
  TResult = any,
  TErr = Error,
  TContext extends LambdaContext = LambdaContext,
  TInternal extends Record<string, unknown> = {}
> = (request: Request<TEvent, TResult, TErr, TContext, TInternal>) => any

export interface MiddlewareObj<
  TEvent = unknown,
  TResult = any,
  TErr = Error,
  TContext extends LambdaContext = LambdaContext,
  TInternal extends Record<string, unknown> = {}
> {
  before?: MiddlewareFn<TEvent, TResult, TErr, TContext, TInternal>
  after?: MiddlewareFn<TEvent, TResult, TErr, TContext, TInternal>
  onError?: MiddlewareFn<TEvent, TResult, TErr, TContext, TInternal>
  name?: string
}

// My own ValidatedBody type 
type ValidatedBody<T> = Omit<APIGatewayProxyEventV2, "body"> & {
  body: T;
};

Here's a CodeSandbox link to the ark schemas and their usage

6 replies

•Created by PIat on 9/17/2024 in #questions

Dynamic type based on another value

As always, thank you for the help 🙏

24 replies

•Created by PIat on 9/17/2024 in #questions

Dynamic type based on another value

Although thinking about it, I would also like to use it as a Type in the application, so I'm guessing I'll have to do the oring

24 replies

•Created by PIat on 9/17/2024 in #questions

Dynamic type based on another value

Runtime (I think - its used to validate incoming request bodies)

24 replies

•Created by PIat on 9/17/2024 in #questions

Dynamic type based on another value

const example = type({
  status: "'Available'|'Unavailable'|'Reclaimed'|'Needs Reclaimed'",
  species: "'Dog'|'Cat'|'Other'",
  "dateOfBirth?": "Date", // Should be required when status is Available|Unavailable
  "breed?": "string", // Should be required when species is Dog
  "crossBreed?": "string", // Optional but only to be supplied when species is Dog
  "summary?": "string", // Required when status is Available|Needs Reclaimed
});

const example = type({
  status: "'Available'|'Unavailable'|'Reclaimed'|'Needs Reclaimed'",
  species: "'Dog'|'Cat'|'Other'",
  "dateOfBirth?": "Date", // Should be required when status is Available|Unavailable
  "breed?": "string", // Should be required when species is Dog
  "crossBreed?": "string", // Optional but only to be supplied when species is Dog
  "summary?": "string", // Required when status is Available|Needs Reclaimed
});

24 replies

•Created by PIat on 9/17/2024 in #questions

Dynamic type based on another value

Sure, 2 secs

24 replies

•Created by PIat on 9/17/2024 in #questions

Dynamic type based on another value

Is there an alternative approach to this available via arktype at all? I have run into a similar scenario but with many possible key/value combinations. Rather than writing a specific type for each scenario and oring them, can I configure a property to be required/optional based on the value(s) of other properties?

24 replies

•Created by dibbo on 8/29/2024 in #questions

Optional property with const string array

Oh nice, I didn’t know that was an option. Thank you for the replies

6 replies

•Created by dibbo on 8/27/2024 in #questions

Indexed Access Types

Nice, thank you for the help!

9 replies

•Created by dibbo on 8/27/2024 in #questions

Indexed Access Types

Thank you! Good question... I've been looking at this for so long I can't remember 😂 Let me give a more detailed example: I'm trying to create a type to be used to validate the payload in a search request. I've landed on this as the implementation

const status = ["Available", "Unavailable", "Sold"] as const;
const size = [
  { label: "Big", value: "100kg" },
  { label: "Small", value: "10kg" },
] as const;

const searchPayload = type({
  "page?": "number",
  "sort?": "string",
  filters: {
    "status?": type(["===", ...status]).array(),
    "size?": type(["===", ...size.map((s) => s.value)]).array(),
  },
});

type SearchPayload = typeof searchPayload.infer;
// Evaluates to the type I want
// type SearchPayload = {
//   filters: {
//       status?: ("Available" | "Unavailable" | "Sold")[];
//       size?: ("100kg" | "10kg")[];
//   };
//   page?: number;
//   sort?: string;
// }

const status = ["Available", "Unavailable", "Sold"] as const;
const size = [
  { label: "Big", value: "100kg" },
  { label: "Small", value: "10kg" },
] as const;

const searchPayload = type({
  "page?": "number",
  "sort?": "string",
  filters: {
    "status?": type(["===", ...status]).array(),
    "size?": type(["===", ...size.map((s) => s.value)]).array(),
  },
});

type SearchPayload = typeof searchPayload.infer;
// Evaluates to the type I want
// type SearchPayload = {
//   filters: {
//       status?: ("Available" | "Unavailable" | "Sold")[];
//       size?: ("100kg" | "10kg")[];
//   };
//   page?: number;
//   sort?: string;
// }

I was wondering if there was a cleaner/preferred way to pick out the value prop from the size array with arktype, rather than creating a new array via the map.

9 replies

•Created by dibbo on 8/16/2024 in #questions

Latest "keys:distilled" equivalent?

No problem at all, thank you for the (impressively fast) response! 👍

11 replies