⚡ Fixes to PhilipsHue Node

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

@@ -0,0 +1,66 @@
+import {
+	OptionsWithUri,
+} from 'request';
+
+import {
+	IExecuteFunctions,
+	ILoadOptionsFunctions,
+} from 'n8n-core';
+
+import {
+	IDataObject,
+} from 'n8n-workflow';
+
+export async function philipsHueApiRequest(this: IExecuteFunctions | ILoadOptionsFunctions, method: string, resource: string, body: any = {}, qs: IDataObject = {}, uri?: string, headers: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
+	const options: OptionsWithUri = {
+		headers: {
+			'Content-Type': 'application/json',
+		},
+		method,
+		body,
+		qs,
+		uri: uri || `https://api.meethue.com${resource}`,
+		json: true
+	};
+	try {
+		if (Object.keys(headers).length !== 0) {
+			options.headers = Object.assign({}, options.headers, headers);
+		}
+
+		if (Object.keys(body).length === 0) {
+			delete options.body;
+		}
+
+		if (Object.keys(qs).length === 0) {
+			delete options.qs;
+		}
+
+		//@ts-ignore
+		return await this.helpers.requestOAuth2.call(this, 'philipsHueOAuth2Api', options, { tokenType: 'Bearer' });
+	} catch (error) {
+		if (error.response && error.response.body && error.response.body.error) {
+
+			const errorMessage = error.response.body.error.description;
+
+			// Try to return the error prettier
+			throw new Error(
+				`Philip Hue error response [${error.statusCode}]: ${errorMessage}`
+			);
+		}
+		throw error;
+	}
+}
+
+export async function getUser(this: IExecuteFunctions | ILoadOptionsFunctions): Promise<any> { // tslint:disable-line:no-any
+	const { whitelist } = await philipsHueApiRequest.call(this, 'GET', '/bridge/0/config', {}, {});
+	//check if there is a n8n user
+	for (const user of Object.keys(whitelist)) {
+		if (whitelist[user].name === 'n8n') {
+			return user;
+		}
+	}
+	// n8n user was not fount then create the user
+	await philipsHueApiRequest.call(this, 'PUT', '/bridge/0/config', { linkbutton: true });
+	const { success } = await philipsHueApiRequest.call(this, 'POST', '/bridge', { devicetype: 'n8n' });
+	return success.username;
+}