✨ Add GetResponse-Node (#1139)

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

@@ -0,0 +1,71 @@
+import {
+	OptionsWithUri,
+ } from 'request';
+
+import {
+	IExecuteFunctions,
+	IHookFunctions,
+	ILoadOptionsFunctions,
+	IWebhookFunctions,
+} from 'n8n-core';
+
+import {
+	IDataObject
+} from 'n8n-workflow';
+
+export async function getresponseApiRequest(this: IWebhookFunctions | IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions, method: string, resource: string, body: any = {}, qs: IDataObject = {}, uri?: string, option: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
+
+	const authentication = this.getNodeParameter('authentication', 0, 'apiKey') as string;
+
+	let options: OptionsWithUri = {
+		headers: {
+			'Content-Type': 'application/json',
+		},
+		method,
+		body,
+		qs,
+		uri: uri || `https://api.getresponse.com/v3${resource}`,
+		json: true,
+	};
+	try {
+		options = Object.assign({}, options, option);
+		if (Object.keys(body).length === 0) {
+			delete options.body;
+		}
+
+		if (authentication === 'apiKey') {
+			const credentials = this.getCredentials('getResponseApi') as IDataObject;
+			options!.headers!['X-Auth-Token'] = `api-key ${credentials.apiKey}`;
+			//@ts-ignore
+			return await this.helpers.request.call(this, options);
+		} else {
+			//@ts-ignore
+			return await this.helpers.requestOAuth2.call(this, 'getResponseOAuth2Api', options);
+		}	
+	} catch (error) {
+		if (error.response && error.response.body && error.response.body.message) {
+			// Try to return the error prettier
+			throw new Error(`GetResponse error response [${error.statusCode}]: ${error.response.body.message}`);
+		}
+		throw error;
+	}
+}
+
+export async function getResponseApiRequestAllItems(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 getresponseApiRequest.call(this, method, endpoint, body, query, undefined, { resolveWithFullResponse: true });
+		query.page++;
+		returnData.push.apply(returnData, responseData.body);
+	} while (
+		responseData.headers.TotalPages !== responseData.headers.CurrentPage
+	);
+
+	return returnData;
+}
+