✨ Add Tapfiliate Node (#1399)

* ✨ Tapfiliate Node

* ⚡ Improvements

* ⚡ Minor improvements to Tapfiliate Node

Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>

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

@@ -0,0 +1,78 @@
+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;
+}