first commit

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

@@ -0,0 +1,98 @@
+import type {
+	IExecuteFunctions,
+	ILoadOptionsFunctions,
+	IDataObject,
+	IHookFunctions,
+	IWebhookFunctions,
+	IHttpRequestMethods,
+	IRequestOptions,
+} from 'n8n-workflow';
+import { NodeApiError } from 'n8n-workflow';
+
+/**
+ * Return the base API URL based on the user's environment.
+ */
+const getBaseUrl = ({ environment, domain, subdomain }: ERPNextApiCredentials) =>
+	environment === 'cloudHosted' ? `https://${subdomain}.${domain}` : domain;
+
+export async function erpNextApiRequest(
+	this: IExecuteFunctions | IWebhookFunctions | IHookFunctions | ILoadOptionsFunctions,
+	method: IHttpRequestMethods,
+	resource: string,
+	body: IDataObject = {},
+	query: IDataObject = {},
+	uri?: string,
+	option: IDataObject = {},
+) {
+	const credentials = await this.getCredentials<ERPNextApiCredentials>('erpNextApi');
+	const baseUrl = getBaseUrl(credentials);
+
+	let options: IRequestOptions = {
+		headers: {
+			Accept: 'application/json',
+			'Content-Type': 'application/json',
+		},
+		method,
+		body,
+		qs: query,
+		uri: uri || `${baseUrl}${resource}`,
+		json: true,
+		rejectUnauthorized: !credentials.allowUnauthorizedCerts,
+	};
+
+	options = Object.assign({}, options, option);
+
+	if (!Object.keys(options.body as IDataObject).length) {
+		delete options.body;
+	}
+
+	if (!Object.keys(options.qs as IDataObject).length) {
+		delete options.qs;
+	}
+	try {
+		return await this.helpers.requestWithAuthentication.call(this, 'erpNextApi', options);
+	} catch (error) {
+		if (error.statusCode === 403) {
+			throw new NodeApiError(this.getNode(), { message: 'DocType unavailable.' });
+		}
+
+		if (error.statusCode === 307) {
+			throw new NodeApiError(this.getNode(), {
+				message: 'Please ensure the subdomain is correct.',
+			});
+		}
+		throw error;
+	}
+}
+
+export async function erpNextApiRequestAllItems(
+	this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
+	propertyName: string,
+	method: IHttpRequestMethods,
+	resource: string,
+	body: IDataObject,
+	query: IDataObject = {},
+) {
+	const returnData: any[] = [];
+
+	let responseData;
+	query.limit_start = 0;
+	query.limit_page_length = 1000;
+
+	do {
+		responseData = await erpNextApiRequest.call(this, method, resource, body, query);
+		returnData.push.apply(returnData, responseData[propertyName] as IDataObject[]);
+		query.limit_start += query.limit_page_length - 1;
+	} while (responseData.data && responseData.data.length > 0);
+
+	return returnData;
+}
+
+type ERPNextApiCredentials = {
+	apiKey: string;
+	apiSecret: string;
+	environment: 'cloudHosted' | 'selfHosted';
+	subdomain?: string;
+	domain?: string;
+	allowUnauthorizedCerts?: boolean;
+};