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Aarktype TTCTheo's Typesafe Cult HHono DTDrizzle Team

•Created by Cobain on 10/9/2024 in #questions

Function which receives a arktype's 'type'

I'm trying to do something like this:

  async rateLimitedCallApi<T>(url: string, schema: Type<T>): Promise<T> {
    await this.rate_limiter.acquire();
    
    const response = await fetch(url, this.request_data);
    if (!response.ok) {
      throw Error(`Invalid request: ${response}`)
    }
    
    const parsedResponse = schema(await response.json());

  async rateLimitedCallApi<T>(url: string, schema: Type<T>): Promise<T> {
    await this.rate_limiter.acquire();
    
    const response = await fetch(url, this.request_data);
    if (!response.ok) {
      throw Error(`Invalid request: ${response}`)
    }
    
    const parsedResponse = schema(await response.json());

But the parsedResponse isn't of type T, so how do I make this function accept as schema anything created using type({...})

13 replies

Aarktype

•Created by Cobain on 9/20/2024 in #questions

Use native ts type

I was wondering if I could use an already created type:

type BlockainsName = "bitcoin" | "ethereum" | "solana" | "polygon-pos" | "binance-smart-chain" | "avalanche"

type BlockainsName = "bitcoin" | "ethereum" | "solana" | "polygon-pos" | "binance-smart-chain" | "avalanche"

inside an arktype type declaration:

export const walletType = type({
  address: "string",
  blockchain: "BlockainsName",
  {...}

export const walletType = type({
  address: "string",
  blockchain: "BlockainsName",
  {...}

I would go on and create an arktype literal as suggested in the docs, but this type is being declared from another object:

export type BlockainsName = keyof typeof blockchains

export type BlockainsName = keyof typeof blockchains

And I want it to be tighly coupled with that object

5 replies

Aarktype

•Created by Cobain on 9/9/2024 in #questions

Multiple versions

3 replies

Aarktype

•Created by Cobain on 9/6/2024 in #questions

Represent the File class

Hi! I want to make a schema for validating a form, and one of the elements of the form is going to be a file upload, so I would like to validate that the form is sending an instance of the File class, and then validate that this file size is smaller than a certain amount. Is there a way to represent class instances in Arktype? An example of doing this in Zod would be:

const schema = z.object({
  image: z
    .instanceof(File, { message: 'Please upload a file.'})
    .refine((f) => f.size < 100_000, 'Max 100 kB upload size.')
});

const schema = z.object({
  image: z
    .instanceof(File, { message: 'Please upload a file.'})
    .refine((f) => f.size < 100_000, 'Max 100 kB upload size.')
});

23 replies

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