deepl-node/dist/utils.d.ts

deepl-node is the official DeepL Node.js client library

/// <reference types="node" />
/// <reference types="node" />
/// <reference types="node" />
import { Formality, GlossaryInfo, GlossaryId, LanguageCode, NonRegionalLanguageCode, RequestParameters, TranslateTextOptions } from './types';
export declare function logDebug(message: string, args?: object): void;
export declare function logInfo(message: string, args?: object): void;
/**
 * Converts contents of given stream to a Buffer.
 * @private
 */
export declare function streamToBuffer(stream: NodeJS.ReadableStream): Promise<Buffer>;
/**
 * Converts contents of given stream to a string using UTF-8 encoding.
 * @private
 */
export declare function streamToString(stream: NodeJS.ReadableStream): Promise<string>;
export declare const timeout: (ms: number) => Promise<unknown>;
/**
 * Returns true if the given argument is a string.
 * @param arg Argument to check.
 */
export declare function isString(arg: any): arg is string;
/**
 * Returns '1' if the given arg is truthy, '0' otherwise.
 * @param arg Argument to check.
 */
export declare function toBoolString(arg: any): string;
/**
 * Returns true if the specified DeepL Authentication Key is associated with a free account,
 * otherwise false.
 * @param authKey The authentication key to check.
 * @return True if the key is associated with a free account, otherwise false.
 */
export declare function isFreeAccountAuthKey(authKey: string): boolean;
/**
 * Changes the upper- and lower-casing of the given language code to match ISO 639-1 with an
 * optional regional code from ISO 3166-1.
 * For example, input 'EN-US' returns 'en-US'.
 * @param langCode String containing language code to standardize.
 * @return Standardized language code.
 */
export declare function standardizeLanguageCode(langCode: string): LanguageCode;
/**
 * Removes the regional variant from a language, for example inputs 'en' and 'en-US' both return
 * 'en'.
 * @param langCode String containing language code to convert.
 * @return Language code with regional variant removed.
 */
export declare function nonRegionalLanguageCode(langCode: string): NonRegionalLanguageCode;
/**
 * Validates and prepares URLSearchParams for arguments common to text and document translation.
 * @private
 */
export declare function buildURLSearchParams(sourceLang: LanguageCode | null, targetLang: LanguageCode, formality: Formality | undefined, glossary: GlossaryId | GlossaryInfo | undefined, extraRequestParameters: RequestParameters | undefined): URLSearchParams;
/**
 * Validates and appends texts to HTTP request parameters, and returns whether a single text
 * argument was provided.
 * @param data Parameters for HTTP request.
 * @param texts User-supplied texts to be checked.
 * @return True if only a single text was provided.
 * @private
 */
export declare function appendTextsAndReturnIsSingular(data: URLSearchParams, texts: string | string[]): boolean;
/**
 * Validates and appends text options to HTTP request parameters.
 * @param data Parameters for HTTP request.
 * @param options Options for translate text request.
 * Note the formality and glossaryId options are handled separately, because these options
 * overlap with the translateDocument function.
 * @private
 */
export declare function validateAndAppendTextOptions(data: URLSearchParams, options?: TranslateTextOptions): void;