first commit

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

@@ -0,0 +1,103 @@
+import type {
+	IExecuteFunctions,
+	IHookFunctions,
+	ILoadOptionsFunctions,
+	IWebhookFunctions,
+	IHttpRequestOptions,
+	JsonObject,
+	IHttpRequestMethods,
+} from 'n8n-workflow';
+import { NodeApiError } from 'n8n-workflow';
+import { parseString as parseXml } from 'xml2js';
+import type {
+	AwsAssumeRoleCredentialsType,
+	AwsIamCredentialsType,
+} from '../../credentials/common/aws/types';
+
+export async function getAwsCredentials(
+	context: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions | IWebhookFunctions,
+) {
+	let credentialsType: 'aws' | 'awsAssumeRole' = 'aws';
+
+	try {
+		const authentication = context.getNodeParameter('authentication', 0) as 'iam' | 'assumeRole';
+
+		if (authentication === 'assumeRole') {
+			credentialsType = 'awsAssumeRole';
+		}
+	} catch (error) {
+		context.logger.warn('Could not get authentication type');
+	}
+
+	const credentials: AwsIamCredentialsType | AwsAssumeRoleCredentialsType =
+		await context.getCredentials(credentialsType);
+
+	return { credentials, credentialsType };
+}
+
+export async function awsApiRequest(
+	this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions | IWebhookFunctions,
+	service: string,
+	method: IHttpRequestMethods,
+	path: string,
+	body?: string,
+	headers?: object,
+): Promise<any> {
+	const { credentials, credentialsType } = await getAwsCredentials(this);
+	const requestOptions = {
+		qs: {
+			service,
+			path,
+		},
+		method,
+		body: service === 'lambda' ? body : JSON.stringify(body),
+		url: '',
+		headers,
+		region: credentials?.region as string,
+	} as IHttpRequestOptions;
+
+	try {
+		return await this.helpers.requestWithAuthentication.call(this, credentialsType, requestOptions);
+	} catch (error) {
+		throw new NodeApiError(this.getNode(), error as JsonObject, { parseXml: true });
+	}
+}
+
+export async function awsApiRequestREST(
+	this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
+	service: string,
+	method: IHttpRequestMethods,
+	path: string,
+	body?: string,
+	headers?: object,
+): Promise<any> {
+	const response = await awsApiRequest.call(this, service, method, path, body, headers);
+	try {
+		return JSON.parse(response as string);
+	} catch (error) {
+		return response;
+	}
+}
+
+export async function awsApiRequestSOAP(
+	this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions | IWebhookFunctions,
+	service: string,
+	method: IHttpRequestMethods,
+	path: string,
+	body?: string,
+	headers?: object,
+): Promise<any> {
+	const response = await awsApiRequest.call(this, service, method, path, body, headers);
+	try {
+		return await new Promise((resolve, reject) => {
+			parseXml(response as string, { explicitArray: false }, (err, data) => {
+				if (err) {
+					return reject(err);
+				}
+				resolve(data);
+			});
+		});
+	} catch (error) {
+		return response;
+	}
+}