✨ Add Raindrop node (#1464)

* ⚡ Register node and credentials

* ✨ Implement OAuth2 flow

* 🎨 Add SVG icon

* ⚡ Add preliminary node stub

* ⚡ Add preliminary generic functions

* ⚡ Add resource description stubs

* ✨ Implement collection:getAll

* ✨ Implement collection:get

* ✨ Implement collection:create

* ✨ Implement collection:delete

* ✨ Implement collection:update

* ✨ Implement raindrop:create

* ✨ Implement raindrop:delete and update

* ✨ Implement user:get

* ⚡ Improvements

* 🎨 Touch up resource descriptions

* 🎨 Rename resource description files

* ⚡ Remove params for uneditable properties

* ⚡ Remove unneeded success response assignment

* ⚡ Update raindrop params

* ⚡ Minor improvements

* ⚡ Small improvement

* ⚡ Minor improvements

Co-authored-by: ricardo <ricardoespinoza105@gmail.com>
Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>

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

@@ -0,0 +1,63 @@
+import {
+	IExecuteFunctions,
+	IHookFunctions,
+} from 'n8n-core';
+
+import {
+	IDataObject,
+	ILoadOptionsFunctions,
+} from 'n8n-workflow';
+
+import {
+	OptionsWithUri,
+} from 'request';
+
+/**
+ * Make an authenticated API request to Raindrop.
+ */
+export async function raindropApiRequest(
+	this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
+	method: string,
+	endpoint: string,
+	qs: IDataObject,
+	body: IDataObject,
+	option: IDataObject = {},
+) {
+
+	const options: OptionsWithUri = {
+		headers: {
+			'user-agent': 'n8n',
+			'Content-Type': 'application/json',
+		},
+		method,
+		uri: `https://api.raindrop.io/rest/v1${endpoint}`,
+		qs,
+		body,
+		json: true,
+	};
+
+	if (!Object.keys(body).length) {
+		delete options.body;
+	}
+
+	if (!Object.keys(qs).length) {
+		delete options.qs;
+	}
+
+	if (Object.keys(option).length !== 0) {
+		Object.assign(options, option);
+	}
+
+	try {
+		return await this.helpers.requestOAuth2!.call(this, 'raindropOAuth2Api', options);
+
+	} catch (error) {
+
+		if (error?.response?.body?.errorMessage) {
+			const errorMessage = error?.response?.body?.errorMessage;
+			throw new Error(`Raindrop error response [${error.statusCode}]: ${errorMessage}`);
+		}
+
+		throw error;
+	}
+}