Created
May 13, 2025 13:21
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RequestFetcherBuilder
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| import {z} from 'zod' | |
| type getParams<T> = T extends `${infer Path}/?${infer Search}` ? | |
| [ | |
| ...getPathParams<Path>, | |
| ...getSearchParams<`?${Search}`> | |
| ]: T extends `${infer Path}?${infer Search}` ? | |
| [ | |
| ...getPathParams<Path>, | |
| ...getSearchParams<`?${Search}`> | |
| ]: T extends `${infer Path}/` ? | |
| [ | |
| ...getPathParams<Path>, | |
| ]: T extends `${infer Path}` ? | |
| [ | |
| ...getPathParams<Path>, | |
| ]: [] | |
| type RequestMethod = "get" | "post" | "patch" | "put" | "delete" | |
| type getPathParams<T> = T extends `${infer Start}:${infer Item}/${infer End}` ? | |
| [Item, ...getPathParams<End>] : | |
| T extends `${infer Start}:${infer Item}:${infer End}` ? | |
| [Item, ...getPathParams<`:${End}`>] : | |
| T extends `${infer Start}:${infer Item}` ? | |
| [Item] : [] | |
| type getSearchParams<T> = | |
| T extends `${infer Start}?${infer Item}?${infer End}` ? | |
| [Item, ...getSearchParams<`?${End}`>] : | |
| T extends `${infer Start}?${infer Item}` ? | |
| [Item] : [] | |
| type tupleToObject<T extends string[]> = { | |
| [key in T[number]]: string | |
| } | |
| type StringLiteral<T> = T extends string ? string extends T ? never : T : never; | |
| function createApi<Url, RequestBody extends z.ZodType | void = void>(method: RequestMethod, url:StringLiteral<Url>, bodySchema?: RequestBody): <Response, Request = void>() => (params: getParams<Url> extends [] ? Request extends void ? RequestBody extends z.ZodType ? z.infer<RequestBody> : void : Request : tupleToObject<getParams<Url>>, body: getParams<Url> extends [] ? void : Request extends void ? RequestBody extends z.ZodType ? z.infer<RequestBody> : void : Request) => Promise<Response> { | |
| throw new Error() | |
| } | |
| const loginSchema = z.object({ | |
| username: z.string(), | |
| password: z.string() | |
| }) | |
| type LoginResponse = {success:true, data: {username:string,name:string}} | {success:false} | |
| const x = createApi("get", "/user/login:id", loginSchema)<LoginResponse>() | |
| const res = await x({id:"2"},{ | |
| password:"1234", | |
| username:"1234" | |
| }) | |
| const x2 = createApi("get", "/user/login", loginSchema)<LoginResponse>() | |
| const res2 = await x2({ | |
| password:"1234", | |
| username:"1234" | |
| }) | |
| const x3 = createApi("get", "/user/login")<LoginResponse, {username:string,password:string}>() | |
| const res3 = await x3({ | |
| password:"1234", | |
| username:"1234" | |
| }) | |
| const x4 = createApi("delete", "/user/login")<LoginResponse>() | |
| const res4 = await x4() | |
| const signupApi = createApi("post", "/user/:user/:company?page?search", loginSchema)<LoginResponse>() | |
| const result = await signupApi({ | |
| company:"1", | |
| page: "2", | |
| search: "4", | |
| user: "" | |
| }, { | |
| username: "1", | |
| password: "2" | |
| }) |
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