Type Alias: FetchInterceptorError

FetchInterceptorError = Interceptor<FetchError, []>

Defined in: packages/fetch/src/types.ts:109

Fetch error interceptor to be invoked whenever an exception occurs. This interceptor can also be used as the error transformer by returning FetchError.

Param

custom error that also contain URL, options & response

Returns

returning undefined or not returning anything will not override the error

Examples

import PromisE from '@superutils/promise'

// not returning anything or returning undefined will avoid transforming the error.
const logError = fetchErr => console.log(fetchErr)
const result = await PromisE.fetch('https://my.domain.com/api/that/fails', {
    interceptors: {
        error: [logError]
    }
})

import PromisE from '@superutils/promise'

// Interceptors can be async functions or just return a promise that resolves to the error.
// If the execution of the interceptor fails or promise rejects, it will be ignored.
// To transform the error it must directly return an error or a Promise that `resolves` with an error.
const transformError = async fetchErr => {
    fetchErr.message = 'Custom errormessage'
	   return Promise.resolve(fetchErr)
}
const result = await PromisE.fetch('https://my.domain.com/api/that/fails', {
    interceptors: {
        error: [transformError]
    }
})