⚡ Add generic functions

packages/nodes-base/nodes/Instagram/Basic Display/GenericFunctions.ts

@@ -0,0 +1,58 @@
+import {
+	OptionsWithUri,
+} from 'request';
+
+import {
+	IExecuteFunctions,
+	IHookFunctions,
+} from 'n8n-core';
+
+import {
+	IDataObject,
+} from 'n8n-workflow';
+
+export async function instagramBasicDisplayApiRequest(
+	this: IHookFunctions | IExecuteFunctions,
+	method: string,
+	endpoint: string,
+	body: IDataObject = {},
+	qs: IDataObject = {},
+) {
+
+	const options: OptionsWithUri = {
+		method,
+		headers: {
+			'User-Agent': 'n8n',
+			'Content-Type': 'text/plain',
+			'Accept': 'application/json',
+		},
+		body,
+		qs,
+		uri: `https://graph.instagram.com${endpoint}`,
+		json: true,
+	};
+
+	if (Object.keys(qs).length === 0) {
+		delete qs.body;
+	}
+
+	if (Object.keys(body).length === 0) {
+		delete options.body;
+	}
+
+	try {
+		//@ts-ignore
+		return await this.helpers.requestOAuth2.call(this, 'instagramBasicDisplayOAuth2Api', options, 'Bearer');
+	} catch (error) {
+
+		if (error.statusCode === 401) {
+			throw new Error('Invalid Instagram credentials!');
+		}
+
+		if (error?.error?.error?.message) {
+				throw new Error(`Instagram error response [${error.statusCode}]: ${error?.error?.error?.message}`);
+		}
+
+		throw error;
+	}
+}