gitlab credentials and triggers

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

@@ -0,0 +1,52 @@
+import {
+	IExecuteFunctions,
+	IHookFunctions,
+} from 'n8n-core';
+
+import {
+	IDataObject,
+} from 'n8n-workflow';
+
+/**
+ * Make an API request to Gitlab
+ *
+ * @param {IHookFunctions} this
+ * @param {string} method
+ * @param {string} url
+ * @param {object} body
+ * @returns {Promise<any>}
+ */
+export async function gitlabApiRequest(this: IHookFunctions | IExecuteFunctions, method: string, endpoint: string, body: object, query?: object): Promise<any> { // tslint:disable-line:no-any
+	const credentials = this.getCredentials('gitlabApi');
+	if (credentials === undefined) {
+		throw new Error('No credentials got returned!');
+	}
+
+	const options = {
+		method,
+		headers: {
+			'Private-Token': `token ${credentials.accessToken}`,
+		},
+		body,
+		qs: query,
+		uri: `${(credentials.server as string).replace(/\/$/, '')}/api/v4/${endpoint}`,
+		json: true
+	};
+
+	try {
+		return await this.helpers.request(options);
+	} catch (error) {
+		if (error.statusCode === 401) {
+			// Return a clear error
+			throw new Error('The Gitlab credentials are not valid!');
+		}
+
+		if (error.response && error.response.body && error.response.body.message) {
+			// Try to return the error prettier
+			throw new Error(`Gitlab error response [${error.statusCode}]: ${error.response.body.message}`);
+		}
+
+		// If that data does not exist for some reason return the actual error
+		throw error;
+	}
+}