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

import {
	OptionsWithUri,
} from 'request';

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

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

export async function tapfiliateApiRequest(this: IHookFunctions | IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions, method: string, endpoint: string, body: any = {}, qs: IDataObject = {}, uri?: string | undefined, option: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
	const credentials = this.getCredentials('tapfiliateApi') as IDataObject;

	const options: OptionsWithUri = {
		headers: {
			'Api-Key': credentials.apiKey,
		},
		method,
		qs,
		body,
		uri: uri || `https://api.tapfiliate.com/1.6${endpoint}`,
		json: true,
	};

	if (Object.keys(body).length === 0) {
		delete options.body;
	}

	if (Object.keys(option).length !== 0) {
		Object.assign(options, option);
	}
	try {
		return await this.helpers.request!(options);
	} catch (error) {
		if (error.statusCode === 404) {
			throw new Error(
				`Tapfiliate error response [${error.statusCode}]: Not Found`,
			);
		}

		if (error.response && error.response.body && error.response.body.errors) {

			let errors = error.response.body.errors;

			errors = errors.map((e: IDataObject) => e.message);
			// Try to return the error prettier
			throw new Error(
				`Tapfiliate error response [${error.statusCode}]: ${errors.join('|')}`,
			);
		}
		throw error;
	}
}

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

	const returnData: IDataObject[] = [];

	let responseData;

	query.page = 1;

	do {
		responseData = await tapfiliateApiRequest.call(this, method, endpoint, body, query, '', { resolveWithFullResponse: true });
		returnData.push.apply(returnData, responseData.body);
		query.page++;

	} while (
		responseData.headers.link.includes('next')
	);

	return returnData;
}