import type { IDataObject, IExecuteFunctions, IHookFunctions, ILoadOptionsFunctions, IWebhookFunctions, INodePropertyOptions, JsonObject, } from 'n8n-workflow'; import { NodeApiError } from 'n8n-workflow'; import type { OptionsWithUri } from 'request'; export interface IFormstackFieldDefinitionType { id: string; label: string; description: string; name: string; type: string; options: unknown; required: string; uniq: string; hidden: string; readonly: string; colspan: string; label_position: string; num_columns: string; date_format: string; time_format: string; } export interface IFormstackWebhookResponseBody { FormID: string; UniqueID: string; } export interface IFormstackSubmissionFieldContainer { field: string; value: string; } export const enum FormstackFieldFormat { ID = 'id', Label = 'label', Name = 'name', } /** * Make an API request to Formstack * */ export async function apiRequest( this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions | IWebhookFunctions, method: string, endpoint: string, body: IDataObject = {}, query: IDataObject = {}, ): Promise { const authenticationMethod = this.getNodeParameter('authentication', 0); const options: OptionsWithUri = { headers: {}, method, body, qs: query || {}, uri: `https://www.formstack.com/api/v2/${endpoint}`, json: true, }; if (!Object.keys(body).length) { delete options.body; } try { if (authenticationMethod === 'accessToken') { const credentials = (await this.getCredentials('formstackApi')) as IDataObject; options.headers!.Authorization = `Bearer ${credentials.accessToken}`; return await this.helpers.request(options); } else { return await this.helpers.requestOAuth2.call(this, 'formstackOAuth2Api', options); } } catch (error) { throw new NodeApiError(this.getNode(), error as JsonObject); } } /** * Make an API request to paginated Formstack endpoint * and return all results * * @param {(IHookFunctions | IExecuteFunctions)} this */ export async function apiRequestAllItems( this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions | IWebhookFunctions, method: string, endpoint: string, body: IDataObject, dataKey: string, query?: IDataObject, ): Promise { if (query === undefined) { query = {}; } query.per_page = 200; query.page = 0; const returnData = { items: [] as IDataObject[], }; let responseData; do { query.page += 1; responseData = await apiRequest.call(this, method, endpoint, body, query); returnData.items.push.apply(returnData.items, responseData[dataKey] as IDataObject[]); } while ( responseData.total !== undefined && Math.ceil(responseData.total / query.per_page) > query.page ); return returnData; } /** * Returns all the available forms * */ export async function getForms(this: ILoadOptionsFunctions): Promise { const endpoint = 'form.json'; const responseData = await apiRequestAllItems.call(this, 'GET', endpoint, {}, 'forms', { folders: false, }); if (responseData.items === undefined) { throw new Error('No data got returned'); } const returnData: INodePropertyOptions[] = []; for (const baseData of responseData.items) { returnData.push({ name: baseData.name, value: baseData.id, }); } return returnData; } /** * Returns all the fields of a form * */ export async function getFields( this: IWebhookFunctions, formID: string, ): Promise> { const endpoint = `form/${formID}.json`; const responseData = await apiRequestAllItems.call(this, 'GET', endpoint, {}, 'fields'); if (responseData.items === undefined) { throw new Error('No form fields meta data got returned'); } const fields = responseData.items as IFormstackFieldDefinitionType[]; const fieldMap: Record = {}; fields.forEach((field) => { fieldMap[field.id] = field; }); return fieldMap; } /** * Returns all the fields of a form * */ export async function getSubmission( this: ILoadOptionsFunctions | IWebhookFunctions, uniqueId: string, ): Promise { const endpoint = `submission/${uniqueId}.json`; const responseData = await apiRequestAllItems.call(this, 'GET', endpoint, {}, 'data'); if (responseData.items === undefined) { throw new Error('No form fields meta data got returned'); } return responseData.items as IFormstackSubmissionFieldContainer[]; }