n8n/packages/nodes-base/nodes/ERPNext/GenericFunctions.ts

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import type { OptionsWithUri } from 'request';
import type {
IExecuteFunctions,
ILoadOptionsFunctions,
IDataObject,
IHookFunctions,
IWebhookFunctions,
} 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://${subdomain}.erpnext.com` : domain;
export async function erpNextApiRequest(
this: IExecuteFunctions | IWebhookFunctions | IHookFunctions | ILoadOptionsFunctions,
method: string,
resource: string,
body: IDataObject = {},
query: IDataObject = {},
uri?: string,
option: IDataObject = {},
) {
const credentials = (await this.getCredentials('erpNextApi')) as ERPNextApiCredentials;
const baseUrl = getBaseUrl(credentials);
let options: OptionsWithUri = {
headers: {
Accept: 'application/json',
'Content-Type': 'application/json',
},
method,
body,
qs: query,
uri: uri || `${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: string,
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;
};