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

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import {
OptionsWithUri,
} from 'request';
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import {
IExecuteFunctions,
IExecuteSingleFunctions,
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IHookFunctions,
ILoadOptionsFunctions,
} from 'n8n-core';
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import {
IDataObject,
} from 'n8n-workflow';
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export async function zendeskApiRequest(this: IHookFunctions | IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions, method: string, resource: string, body: any = {}, qs: IDataObject = {}, uri?: string, option: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
const authenticationMethod = this.getNodeParameter('authentication', 0);
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let options: OptionsWithUri = {
headers: {},
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method,
qs,
body,
//@ts-ignore
uri,
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json: true
};
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options = Object.assign({}, options, option);
if (Object.keys(options.body).length === 0) {
delete options.body;
}
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try {
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if (authenticationMethod === 'apiToken') {
const credentials = this.getCredentials('zendeskApi');
if (credentials === undefined) {
throw new Error('No credentials got returned!');
}
const base64Key = Buffer.from(`${credentials.email}/token:${credentials.apiToken}`).toString('base64');
options.uri = `https://${credentials.subdomain}.zendesk.com/api/v2${resource}.json`;
options.headers!['Authorization'] = `Basic ${base64Key}`;
//console.log(options);
return await this.helpers.request!(options);
} else {
const credentials = this.getCredentials('zendeskOAuth2Api');
if (credentials === undefined) {
throw new Error('No credentials got returned!');
}
options.uri = `https://${credentials.subdomain}.zendesk.com/api/v2${resource}.json`;
return await this.helpers.requestOAuth2!.call(this, 'zendeskOAuth2Api', options);
}
} catch(err) {
let errorMessage = err.message;
if (err.response && err.response.body && err.response.body.error) {
errorMessage = err.response.body.error;
if (typeof err.response.body.error !== 'string') {
errorMessage = JSON.stringify(errorMessage);
}
}
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throw new Error(`Zendesk error response [${err.statusCode}]: ${errorMessage}`);
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}
}
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/**
* Make an API request to paginated flow endpoint
* and return all results
*/
export async function zendeskApiRequestAllItems(this: IHookFunctions | IExecuteFunctions| ILoadOptionsFunctions, propertyName: string, method: string, resource: string, body: any = {}, query: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
const returnData: IDataObject[] = [];
let responseData;
let uri: string | undefined;
do {
responseData = await zendeskApiRequest.call(this, method, resource, body, query, uri);
uri = responseData.next_page;
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returnData.push.apply(returnData, responseData[propertyName]);
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if (query.limit && query.limit <= returnData.length) {
return returnData;
}
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} while (
responseData.next_page !== undefined &&
responseData.next_page !== null
);
return returnData;
}
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export function validateJSON(json: string | undefined): any { // tslint:disable-line:no-any
let result;
try {
result = JSON.parse(json!);
} catch (exception) {
result = undefined;
}
return result;
}