n8n/packages/nodes-base/nodes/NextCloud/GenericFunctions.ts

import {
	IExecuteFunctions,
	IHookFunctions,
} from 'n8n-core';

import {
	JsonObject,
	NodeApiError,
 } from 'n8n-workflow';

import {
	OptionsWithUri,
} from 'request';

/**
 * Make an API request to NextCloud
 *
 * @param {IHookFunctions} this
 * @param {string} method
 * @param {string} url
 * @param {object} body
 * @returns {Promise<any>}
 */
export async function nextCloudApiRequest(this: IHookFunctions | IExecuteFunctions, method: string, endpoint: string, body: object | string | Buffer, headers?: object, encoding?: null | undefined, query?: object): Promise<any> { // tslint:disable-line:no-any
	const resource = this.getNodeParameter('resource', 0);
	const operation = this.getNodeParameter('operation', 0);
	const authenticationMethod = this.getNodeParameter('authentication', 0);

	let credentials;

	if (authenticationMethod === 'accessToken') {
		credentials = await this.getCredentials('nextCloudApi') as { webDavUrl: string };
	} else {
		credentials = await this.getCredentials('nextCloudOAuth2Api') as { webDavUrl: string };
	}

	let options: OptionsWithUri = {
		headers,
		method,
		body,
		qs: query ?? {},
		uri: '',
		json: false,
	};

	if (encoding === null) {
		options.encoding = null;
	}

	options.uri = `${credentials.webDavUrl}/${encodeURI(endpoint)}`;
	if (resource === 'user' && operation === 'create') {
		options.uri = options.uri.replace('/remote.php/webdav', '');
	}

	const credentialType = authenticationMethod === 'accessToken' ? 'nextCloudApi' : 'nextCloudOAuth2Api';

	try {
		return await this.helpers.requestWithAuthentication.call(this, credentialType, options);
	} catch(error) {
		throw new NodeApiError(this.getNode(), error as JsonObject);
	}
}