import { OptionsWithUri, } from 'request'; import { IExecuteFunctions, IExecuteSingleFunctions, ILoadOptionsFunctions, } from 'n8n-core'; import { IDataObject, IOAuth2Options, NodeApiError, NodeOperationError, } from 'n8n-workflow'; import * as _ from 'lodash'; export async function slackApiRequest(this: IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions, method: string, resource: string, body: object = {}, query: object = {}, headers: {} | undefined = undefined, option: {} = {}): Promise { // tslint:disable-line:no-any const authenticationMethod = this.getNodeParameter('authentication', 0, 'accessToken') as string; let options: OptionsWithUri = { method, headers: headers || { 'Content-Type': 'application/json; charset=utf-8', }, body, qs: query, uri: `https://slack.com/api${resource}`, json: true, }; options = Object.assign({}, options, option); if (Object.keys(body).length === 0) { delete options.body; } if (Object.keys(query).length === 0) { delete options.qs; } try { let response: any; // tslint:disable-line:no-any if (authenticationMethod === 'accessToken') { const credentials = await this.getCredentials('slackApi'); if (credentials === undefined) { throw new NodeOperationError(this.getNode(), 'No credentials got returned!'); } options.headers!.Authorization = `Bearer ${credentials.accessToken}`; //@ts-ignore response = await this.helpers.request(options); } else { const oAuth2Options: IOAuth2Options = { tokenType: 'Bearer', property: 'authed_user.access_token', }; //@ts-ignore response = await this.helpers.requestOAuth2.call(this, 'slackOAuth2Api', options, oAuth2Options); } if (response.ok === false) { throw new NodeOperationError(this.getNode(), 'Slack error response: ' + JSON.stringify(response)); } return response; } catch (error) { throw new NodeApiError(this.getNode(), error); } } export async function slackApiRequestAllItems(this: IExecuteFunctions | ILoadOptionsFunctions, propertyName: string, method: string, endpoint: string, body: any = {}, query: IDataObject = {}): Promise { // tslint:disable-line:no-any const returnData: IDataObject[] = []; let responseData; query.page = 1; //if the endpoint uses legacy pagination use count //https://api.slack.com/docs/pagination#classic if (endpoint.includes('files.list')) { query.count = 100; } else { query.limit = 100; } do { responseData = await slackApiRequest.call(this, method, endpoint, body, query); query.cursor = _.get(responseData, 'response_metadata.next_cursor'); query.page++; returnData.push.apply(returnData, responseData[propertyName]); } while ( (responseData.response_metadata !== undefined && responseData.response_metadata.next_cursor !== undefined && responseData.response_metadata.next_cursor !== '' && responseData.response_metadata.next_cursor !== null) || (responseData.paging !== undefined && responseData.paging.pages !== undefined && responseData.paging.page !== undefined && responseData.paging.page < responseData.paging.pages ) ); return returnData; } 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; }