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

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

import {
	OptionsWithUri,
} from 'request';

import {
	IDataObject,
} from 'n8n-workflow';

/**
 * Make an API request to Trello
 *
 * @param {IHookFunctions} this
 * @param {string} method
 * @param {string} url
 * @param {object} body
 * @returns {Promise<any>}
 */
export async function apiRequest(this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions, method: string, endpoint: string, body: object, query?: IDataObject): Promise<any> { // tslint:disable-line:no-any
	const credentials = this.getCredentials('trelloApi');

	if (credentials === undefined) {
		throw new Error('No credentials got returned!');
	}

	query = query || {};

	query.key = credentials.apiKey;
	query.token = credentials.apiToken;

	const options: OptionsWithUri = {
		headers: {
		},
		method,
		body,
		qs: query,
		uri: `https://api.trello.com/1/${endpoint}`,
		json: true,
	};

	try {
		return await this.helpers.request!(options);
	} catch (error) {
		if (error.statusCode === 401) {
			throw new Error('The Trello credentials are not valid!');
		}

		throw error;
	}
}

export async function apiRequestAllItems(this: IHookFunctions | IExecuteFunctions, method: string, endpoint: string, body: IDataObject, query: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any

	query.limit = 30;

	query.sort = '-id';

	const returnData: IDataObject[] = [];

	let responseData;

	do {
		responseData = await apiRequest.call(this, method, endpoint, body, query);
		returnData.push.apply(returnData, responseData);
		if (responseData.length !== 0) {
			query.before = responseData[responseData.length - 1].id;
		}
	} while (
		query.limit <= responseData.length
	);

	return returnData;
}