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HHono
Created by tbeseda on 4/9/2025 in #help
Types issue in zod-openapi in v0.19.4, .5, & .6 (repro attached)
Still an issue in v0.19.6 -- I updated the reproduction above ☝️ and made it even simpler. npm test runs a simple typecheck tsc --noEmit --skipLibCheck main.ts and it complains with the same error that my response shapes are 
not assignable to type 'Promise<never>
not assignable to type 'Promise<never>
Maybe if someone can make that pass with a change to the tsc flags/settings? It seems strange that others wouldn't have this issue, so I must have too simple of a TS setup. maybe?
11 replies
HHono
Created by tbeseda on 4/9/2025 in #help
Types issue in zod-openapi in v0.19.4, .5, & .6 (repro attached)
got this down to a minimal reproduction sandbox on Stackblitz Run npm run typecheck to see the error (the editor doesn't immediately show the issue until the file is edited)
11 replies
HHono
Created by tbeseda on 4/9/2025 in #help
Types issue in zod-openapi in v0.19.4, .5, & .6 (repro attached)
(bump) I still see this issue in 0.19.5 Only way I see to fix it is using 
as unknown as Promise<never>
as unknown as Promise<never>
😬
11 replies
HHono
Created by tbeseda on 4/9/2025 in #help
Types issue in zod-openapi in v0.19.4, .5, & .6 (repro attached)
and with 0.19.2 it builds. (0.19.3 has the yarn workspace bug mentioned here - fixed in 0.19.4)
11 replies
HHono
Created by tbeseda on 4/9/2025 in #help
Types issue in zod-openapi in v0.19.4, .5, & .6 (repro attached)
$ npm ls @hono/zod-openapi

myProject@0.0.1 /Users/my-project
├── @hono/zod-openapi@0.19.4
$ npm ls @hono/zod-openapi

myProject@0.0.1 /Users/my-project
├── @hono/zod-openapi@0.19.4
$ tsc repro.ts

repro.ts:42:20 - error TS2345: Argument of type '(c: Context<AppBindings, "/widget/:widgetId", { in: { param: { widgetId?: string; }; }; out: { param: { widgetId?: string; }; }; }>) => Promise<JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<...>>' is not assignable to parameter of type 'Handler<AppBindings, "/widget/:widgetId", { in: { param: { widgetId?: string; }; }; out: { param: { widgetId?: string; }; }; }, Promise<never>>'.
  Type 'Promise<JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<{ widgetId: string; }, 200>>' is not assignable to type 'Promise<never>'.
    Type 'JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<{ widgetId: string; }, 200>' is not assignable to type 'never'.
      Type 'JSONRespondReturn<{ error: { code: string; message: string; }; }, 404>' is not assignable to type 'never'.

42 app.openapi(route, async (c) => {
                      ~~~~~~~~~~~~~~
$ tsc repro.ts

repro.ts:42:20 - error TS2345: Argument of type '(c: Context<AppBindings, "/widget/:widgetId", { in: { param: { widgetId?: string; }; }; out: { param: { widgetId?: string; }; }; }>) => Promise<JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<...>>' is not assignable to parameter of type 'Handler<AppBindings, "/widget/:widgetId", { in: { param: { widgetId?: string; }; }; out: { param: { widgetId?: string; }; }; }, Promise<never>>'.
  Type 'Promise<JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<{ widgetId: string; }, 200>>' is not assignable to type 'Promise<never>'.
    Type 'JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<{ widgetId: string; }, 200>' is not assignable to type 'never'.
      Type 'JSONRespondReturn<{ error: { code: string; message: string; }; }, 404>' is not assignable to type 'never'.

42 app.openapi(route, async (c) => {
                      ~~~~~~~~~~~~~~
11 replies
HHono
Created by tbeseda on 4/9/2025 in #help
Types issue in zod-openapi in v0.19.4, .5, & .6 (repro attached)
perhaps there's a bug in the fix for this issue 🤔 https://github.com/honojs/middleware/issues/1102
11 replies
HHono
Created by tbeseda on 4/9/2025 in #help
Types issue in zod-openapi in v0.19.4, .5, & .6 (repro attached)
Here's the text of the type error 
Argument of type '(c: Context<AppBindings, "/widget/:widgetId", { in: { param: { widgetId?: string; }; }; out: { param: { widgetId?: string; }; }; }>) => Promise<JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<...>>' is not assignable to parameter of type 'Handler<AppBindings, "/widget/:widgetId", { in: { param: { widgetId?: string; }; }; out: { param: { widgetId?: string; }; }; }, Promise<never>>'.
  Type 'Promise<JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<{ widgetId: string; }, 200>>' is not assignable to type 'Promise<never>'.
    Type 'JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<{ widgetId: string; }, 200>' is not assignable to type 'never'.
      Type 'JSONRespondReturn<{ error: { code: string; message: string; }; }, 404>' is not assignable to type 'never'.ts(2345)
Argument of type '(c: Context<AppBindings, "/widget/:widgetId", { in: { param: { widgetId?: string; }; }; out: { param: { widgetId?: string; }; }; }>) => Promise<JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<...>>' is not assignable to parameter of type 'Handler<AppBindings, "/widget/:widgetId", { in: { param: { widgetId?: string; }; }; out: { param: { widgetId?: string; }; }; }, Promise<never>>'.
  Type 'Promise<JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<{ widgetId: string; }, 200>>' is not assignable to type 'Promise<never>'.
    Type 'JSONRespondReturn<{ error: { code: string; message: string; }; }, 404> | JSONRespondReturn<{ widgetId: string; }, 200>' is not assignable to type 'never'.
      Type 'JSONRespondReturn<{ error: { code: string; message: string; }; }, 404>' is not assignable to type 'never'.ts(2345)
11 replies