keq-exception

KEQ-EXCEPTION


[Document EN]: https://keq-request.github.io/guide/libraries/keq-exception
[Document CN]: https://keq-request.github.io/zh/guide/libraries/keq-exception

[Document][Document EN] | [中文文档][Document CN]

Middleware for throwing/catching exceptions. And it can control whether the exception trigger retry.

Usage

``typescript
import { request } from "keq"
import {
throwException,
catchException,
RequestException,
} from "keq-exception"

request
.use(
catchException((err) => {
if (err instanceof RequestException && err.code === 401) {
context.redirect("/login")
return
}

throw err
})
)

// Callback will run after await next().
// This way you can throw errors based on the response body.
.use(
throwException(async (ctx) => {
if (ctx.response && ctx.response.status >= 400) {
const body = await ctx.response.json()
throw new RequestException(ctx.response.status, body.message)
}
})
)
`

$3

| Parameter | Default | Description |
| :------------ | :---------- | -------------------------------------------- |
| statusCode | - | Error code |
| message | '' | Error message |
| retry | true` | Whether the thrown error can trigger a retry |