Add returnAll and refactoring

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

@@ -0,0 +1,87 @@
+import { OptionsWithUri } from 'request';
+import {
+	IExecuteFunctions,
+	IExecuteSingleFunctions,
+	IHookFunctions,
+	ILoadOptionsFunctions,
+} from 'n8n-core';
+import { IDataObject } from 'n8n-workflow';
+
+export async function disqusApiRequest(
+		this: IHookFunctions | IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions,
+		method: string,
+		qs: IDataObject = {},
+		uri?: string,
+		body: any = {},
+		option: IDataObject = {}
+	): Promise<any> { // tslint:disable-line:no-any
+
+	const credentials = this.getCredentials('disqusApi') as IDataObject;
+	qs.api_key = credentials.accessToken;
+	if (credentials === undefined) {
+		throw new Error('No credentials got returned!');
+	}
+
+	let options: OptionsWithUri = {
+		method,
+		qs,
+		body,
+		uri: `https://disqus.com/api/3.0/${uri}`,
+		json: true
+	};
+
+	options = Object.assign({}, options, option);
+	if (Object.keys(options.body).length === 0) {
+		delete options.body;
+	}
+	try {
+		const result = await this.helpers.request!(options)
+		return result;
+	} catch (error) {
+		console.log(error)
+		if (error.statusCode === 401) {
+			// Return a clear error
+			throw new Error('The Disqus credentials are not valid!');
+		}
+
+		if (error.error && error.error.error_summary) {
+			// Try to return the error prettier
+			throw new Error(`Disqus error response [${error.statusCode}]: ${error.error.error_summary}`);
+		}
+
+		// If that data does not exist for some reason return the actual error
+		throw error;
+	}
+}
+
+/**
+ * Make an API request to paginated flow endpoint
+ * and return all results
+ */
+export async function disqusApiRequestAllItems(
+		this: IHookFunctions | IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions,
+		method: string,
+		qs: IDataObject = {},
+		uri?: string,
+		body: any = {},
+		option: IDataObject = {}
+	): Promise<any> { // tslint:disable-line:no-any
+
+	const returnData: IDataObject[] = [];
+
+	let responseData;
+
+	try {
+		do {
+			responseData = await disqusApiRequest.call(this, method, qs, uri, body, option);
+			qs.cursor = responseData.cursor.id;
+			returnData.push.apply(returnData, responseData.response);
+		} while (
+			responseData.cursor.more === true &&
+			responseData.cursor.hasNext === true
+		);
+		return returnData;
+		} catch(error) {
+		throw error;
+	}
+}