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import type { IncomingHttpHeaders, OutgoingHttpHeaders } from 'http'
import type { I18NConfig } from '../config-shared'
import { RedirectStatusCode } from '../../client/components/redirect-status-code'
import type { NextApiRequestCookies } from '../api-utils'
import { getCookieParser } from '../api-utils/get-cookie-parser'
export interface BaseNextRequestConfig {
basePath: string | undefined
i18n?: I18NConfig
trailingSlash?: boolean | undefined
}
export type FetchMetric = {
url: string
idx: number
end: number
start: number
method: string
status: number
cacheReason: string
cacheStatus: 'hit' | 'miss' | 'skip' | 'hmr'
cacheWarning?: string
}
export type FetchMetrics = Array<FetchMetric>
export abstract class BaseNextRequest<Body = any> {
protected _cookies: NextApiRequestCookies | undefined
public abstract headers: IncomingHttpHeaders
public abstract fetchMetrics: FetchMetric[] | undefined
constructor(
public method: string,
public url: string,
public body: Body
) {}
// Utils implemented using the abstract methods above
public get cookies() {
if (this._cookies) return this._cookies
return (this._cookies = getCookieParser(this.headers)())
}
}
export abstract class BaseNextResponse<Destination = any> {
abstract statusCode: number | undefined
abstract statusMessage: string | undefined
abstract get sent(): boolean
constructor(public destination: Destination) {}
/**
* Sets a value for the header overwriting existing values
*/
abstract setHeader(name: string, value: string | string[]): this
/**
* Removes a header
*/
abstract removeHeader(name: string): this
/**
* Appends value for the given header name
*/
abstract appendHeader(name: string, value: string): this
/**
* Get all values for a header as an array or undefined if no value is present
*/
abstract getHeaderValues(name: string): string[] | undefined
abstract hasHeader(name: string): boolean
/**
* Get values for a header concatenated using `,` or undefined if no value is present
*/
abstract getHeader(name: string): string | undefined
abstract getHeaders(): OutgoingHttpHeaders
abstract body(value: string): this
abstract send(): void
abstract onClose(callback: () => void): void
// Utils implemented using the abstract methods above
public redirect(destination: string, statusCode: number) {
this.setHeader('Location', destination)
this.statusCode = statusCode
// Since IE11 doesn't support the 308 header add backwards
// compatibility using refresh header
if (statusCode === RedirectStatusCode.PermanentRedirect) {
this.setHeader('Refresh', `0;url=${destination}`)
}
return this
}
}
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