first commit

packages/nodes-base/nodes/Google/Slides/GenericFunctions.ts

@@ -0,0 +1,61 @@
+import type {
+	IDataObject,
+	IExecuteFunctions,
+	IHttpRequestMethods,
+	ILoadOptionsFunctions,
+	IRequestOptions,
+	JsonObject,
+} from 'n8n-workflow';
+import { NodeApiError } from 'n8n-workflow';
+
+import { getGoogleAccessToken } from '../GenericFunctions';
+
+export async function googleApiRequest(
+	this: IExecuteFunctions | ILoadOptionsFunctions,
+	method: IHttpRequestMethods,
+	resource: string,
+	body: IDataObject = {},
+	qs: IDataObject = {},
+) {
+	const authenticationMethod = this.getNodeParameter(
+		'authentication',
+		0,
+		'serviceAccount',
+	) as string;
+	const options: IRequestOptions & { headers: IDataObject } = {
+		headers: {
+			'Content-Type': 'application/json',
+		},
+		method,
+		body,
+		qs,
+		uri: `https://slides.googleapis.com/v1${resource}`,
+		json: true,
+	};
+
+	if (!Object.keys(body).length) {
+		delete options.body;
+	}
+
+	if (!Object.keys(qs).length) {
+		delete options.qs;
+	}
+
+	try {
+		if (authenticationMethod === 'serviceAccount') {
+			const credentials = await this.getCredentials('googleApi');
+
+			const { access_token } = await getGoogleAccessToken.call(this, credentials, 'slides');
+			options.headers.Authorization = `Bearer ${access_token}`;
+			return await this.helpers.request(options);
+		} else {
+			return await this.helpers.requestOAuth2.call(this, 'googleSlidesOAuth2Api', options);
+		}
+	} catch (error) {
+		if (error.code === 'ERR_OSSL_PEM_NO_START_LINE') {
+			error.statusCode = '401';
+		}
+
+		throw new NodeApiError(this.getNode(), error as JsonObject);
+	}
+}