import { IExecuteFunctions, IHookFunctions, ILoadOptionsFunctions } from 'n8n-core'; import { OptionsWithUri } from 'request'; import { IBinaryKeyData, IDataObject, INodeExecutionData, IPollFunctions, jsonParse, NodeOperationError, } from 'n8n-workflow'; interface IAttachment { url: string; title: string; mimetype: string; size: number; } /** * Make an API request to NocoDB * */ export async function apiRequest( this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions | IPollFunctions, method: string, endpoint: string, body: object, query?: IDataObject, uri?: string, option: IDataObject = {}, ): Promise { const authenticationMethod = this.getNodeParameter('authentication', 0) as string; const credentials = await this.getCredentials(authenticationMethod); if (credentials === undefined) { throw new NodeOperationError(this.getNode(), 'No credentials got returned!'); } const baseUrl = credentials.host as string; query = query || {}; const options: OptionsWithUri = { method, body, qs: query, uri: uri || baseUrl.endsWith('/') ? `${baseUrl.slice(0, -1)}${endpoint}` : `${baseUrl}${endpoint}`, json: true, }; if (Object.keys(option).length !== 0) { Object.assign(options, option); } if (Object.keys(body).length === 0) { delete options.body; } return this.helpers.requestWithAuthentication.call(this, authenticationMethod, options); } /** * Make an API request to paginated NocoDB endpoint * and return all results * * @param {(IHookFunctions | IExecuteFunctions)} this */ export async function apiRequestAllItems( this: IHookFunctions | IExecuteFunctions | IPollFunctions, method: string, endpoint: string, body: IDataObject, query?: IDataObject, ): Promise { const version = this.getNode().typeVersion; if (query === undefined) { query = {}; } query.limit = 100; query.offset = query?.offset ? (query.offset as number) : 0; const returnData: IDataObject[] = []; let responseData; do { responseData = await apiRequest.call(this, method, endpoint, body, query); version === 1 ? returnData.push(...responseData) : returnData.push(...responseData.list); query.offset += query.limit; } while (version === 1 ? responseData.length !== 0 : responseData.pageInfo.isLastPage !== true); return returnData; } export async function downloadRecordAttachments( this: IExecuteFunctions | IPollFunctions, records: IDataObject[], fieldNames: string[], ): Promise { const elements: INodeExecutionData[] = []; for (const record of records) { const element: INodeExecutionData = { json: {}, binary: {} }; element.json = record as unknown as IDataObject; for (const fieldName of fieldNames) { if (record[fieldName]) { for (const [index, attachment] of jsonParse( record[fieldName] as string, ).entries()) { const file = await apiRequest.call(this, 'GET', '', {}, {}, attachment.url, { json: false, encoding: null, }); element.binary![`${fieldName}_${index}`] = await this.helpers.prepareBinaryData( Buffer.from(file), attachment.title, attachment.mimetype, ); } } } if (Object.keys(element.binary as IBinaryKeyData).length === 0) { delete element.binary; } elements.push(element); } return elements; }