n8n/packages/nodes-base/nodes/ERPNext/GenericFunctions.ts
2022-01-24 17:20:27 +01:00

113 lines
2.6 KiB
TypeScript

import {
OptionsWithUri,
} from 'request';
import {
IExecuteFunctions,
ILoadOptionsFunctions,
} from 'n8n-core';
import {
IDataObject,
IHookFunctions,
IWebhookFunctions,
NodeApiError,
NodeOperationError
} from 'n8n-workflow';
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);
if (credentials === undefined) {
throw new NodeOperationError(this.getNode(), 'No credentials got returned!');
}
let options: OptionsWithUri = {
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json',
Authorization: `token ${credentials.apiKey}:${credentials.apiSecret}`,
},
method,
body,
qs: query,
uri: uri || `${baseUrl}${resource}`,
json: true,
};
options = Object.assign({}, options, option);
if (!Object.keys(options.body).length) {
delete options.body;
}
if (!Object.keys(options.qs).length) {
delete options.qs;
}
try {
return await this.helpers.request!(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 new NodeApiError(this.getNode(), error);
}
}
export async function erpNextApiRequestAllItems(
this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
propertyName: string,
method: string,
resource: string,
body: IDataObject,
query: IDataObject = {},
) {
// tslint:disable-next-line: no-any
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]);
query!.limit_start += query!.limit_page_length - 1;
} while (
responseData.data && responseData.data.length > 0
);
return returnData;
}
/**
* Return the base API URL based on the user's environment.
*/
const getBaseUrl = ({ environment, domain, subdomain }: ERPNextApiCredentials) =>
environment === 'cloudHosted'
? `https://${subdomain}.erpnext.com`
: domain;
type ERPNextApiCredentials = {
apiKey: string;
apiSecret: string;
environment: 'cloudHosted' | 'selfHosted';
subdomain?: string;
domain?: string;
};