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import { BackendModule, ReadCallback } from 'i18next';
type LoadPathOption = string | ((lngs: string[], namespaces: string[]) => string);
interface BackendOptions {
/**
* path where resources get loaded from, or a function
* returning a path:
* function(lngs, namespaces) { return customPath; }
* the returned path will interpolate lng, ns if provided like giving a static path
*/
loadPath?: LoadPathOption;
/**
* path to post missing resources
*/
addPath?: string;
/**
* your backend server supports multiLoading
* locales/resources.json?lng=de+en&ns=ns1+ns2
* set loadPath: '/locales/resources.json?lng={{lng}}&ns={{ns}}' to adapt to multiLoading
*/
allowMultiLoading?: boolean;
/**
* parse data after it has been fetched
* in example use https://www.npmjs.com/package/json5
* here it removes the letter a from the json (bad idea)
*/
parse?(data: string, languages?: string | string[], namespaces?: string | string[]): string;
/**
* parse data before it has been sent by addPath
*/
parsePayload?(namespace: string, key: string, fallbackValue?: string): { [key: string]: any };
/**
* allow cross domain requests
*/
crossDomain?: boolean;
/**
* allow credentials on cross domain requests
*/
withCredentials?: boolean;
/**
* define a custom xhr function
* can be used to support XDomainRequest in IE 8 and 9
*/
request?(
options: BackendOptions,
url: string,
payload: {} | string,
callback: RequestCallback,
): void;
/**
* adds parameters to resource URL. 'example.com' -> 'example.com?v=1.3.5'
*/
queryStringParams?: { [key: string]: string };
customHeaders?: { [key: string]: string };
}
type RequestCallback = (error: any, response: RequestResponse) => void;
interface RequestResponse {
status: number,
data: string
}
export default class I18NextHttpBackend implements BackendModule<BackendOptions> {
constructor(services?: any, options?: BackendOptions);
init(services?: any, options?: BackendOptions): void;
readMulti(languages: string[], namespaces: string[], callback: ReadCallback): void;
read(language: string, namespace: string, callback: ReadCallback): void;
loadUrl(url: string, callback: ReadCallback, languages?: string | string[], namespaces?: string | string[]): void;
create(languages: string | string[], namespace: string, key: string, fallbackValue: string): void;
type: 'backend';
services: any;
options: BackendOptions;
}
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