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

146 lines
3.3 KiB
TypeScript

import { OptionsWithUri } from 'request';
import {
BINARY_ENCODING,
IExecuteFunctions,
IExecuteSingleFunctions,
IHookFunctions,
ILoadOptionsFunctions,
IWebhookFunctions,
} from 'n8n-core';
import { IDataObject, NodeApiError, NodeOperationError } from 'n8n-workflow';
function getEnvironment(env: string) {
return {
sanbox: 'https://api-m.sandbox.paypal.com',
live: 'https://api-m.paypal.com',
}[env];
}
async function getAccessToken(
this:
| IHookFunctions
| IExecuteFunctions
| IExecuteSingleFunctions
| ILoadOptionsFunctions
| IWebhookFunctions,
): Promise<any> {
const credentials = await this.getCredentials('payPalApi');
const env = getEnvironment(credentials.env as string);
const data = Buffer.from(`${credentials.clientId}:${credentials.secret}`).toString(
BINARY_ENCODING,
);
const headerWithAuthentication = Object.assign(
{},
{ Authorization: `Basic ${data}`, 'Content-Type': 'application/x-www-form-urlencoded' },
);
const options: OptionsWithUri = {
headers: headerWithAuthentication,
method: 'POST',
form: {
grant_type: 'client_credentials',
},
uri: `${env}/v1/oauth2/token`,
json: true,
};
try {
return await this.helpers.request(options);
} catch (error) {
throw new NodeOperationError(this.getNode(), error);
}
}
export async function payPalApiRequest(
this:
| IHookFunctions
| IExecuteFunctions
| IExecuteSingleFunctions
| ILoadOptionsFunctions
| IWebhookFunctions,
endpoint: string,
method: string,
body: any = {},
query?: IDataObject,
uri?: string,
): Promise<any> {
const credentials = await this.getCredentials('payPalApi');
const env = getEnvironment(credentials.env as string);
const tokenInfo = await getAccessToken.call(this);
const headerWithAuthentication = Object.assign(
{},
{ Authorization: `Bearer ${tokenInfo.access_token}`, 'Content-Type': 'application/json' },
);
const options = {
headers: headerWithAuthentication,
method,
qs: query || {},
uri: uri || `${env}/v1${endpoint}`,
body,
json: true,
};
try {
return await this.helpers.request(options);
} catch (error) {
throw new NodeApiError(this.getNode(), error);
}
}
function getNext(links: IDataObject[]): string | undefined {
for (const link of links) {
if (link.rel === 'next') {
return link.href as string;
}
}
return undefined;
}
/**
* Make an API request to paginated paypal endpoint
* and return all results
*/
export async function payPalApiRequestAllItems(
this: IHookFunctions | IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions,
propertyName: string,
endpoint: string,
method: string,
body: any = {},
query?: IDataObject,
uri?: string,
): Promise<any> {
const returnData: IDataObject[] = [];
let responseData;
query!.page_size = 1000;
do {
responseData = await payPalApiRequest.call(this, endpoint, method, body, query, uri);
uri = getNext(responseData.links);
returnData.push.apply(returnData, responseData[propertyName]);
} while (getNext(responseData.links) !== undefined);
return returnData;
}
export function validateJSON(json: string | undefined): any {
let result;
try {
result = JSON.parse(json!);
} catch (exception) {
result = '';
}
return result;
}
export function upperFist(s: string): string {
return s
.split('.')
.map((e) => {
return e.toLowerCase().charAt(0).toUpperCase() + e.toLowerCase().slice(1);
})
.join(' ');
}