/Wiki/sources/honojs__hono/2026/https-hono-dev-llms-full-txt-invalidusermessage--9ebf39d68073-invalidusermessage-string-object-messagefunction-s0294-c0000.md
invalidUserMessage: `string | object | MessageFunction` - hono-docs
invalidUserMessage: string | object | MessageFunction Source evidence: /Sources/raw/honojs hono/honojs hono.md Canonical citation: https://hono.dev/llms full...
invalidUserMessage: string | object | MessageFunction
Source evidence: /Sources/raw/honojshono/honojshono.md Canonical citation: https://hono.dev/llms-full.txt#invalidusermessage-string-object-messagefunction
Summary
MessageFunction is (c: Context) => string | object | Promise . The custom message if the user is invalid.
Content
MessageFunction is (c: Context) => string | object | Promise<string | object>. The custom message if the user is invalid.