n8n/packages/nodes-base/nodes/Google/GoogleSheet.ts

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import { IDataObject } from 'n8n-workflow';
import { google, sheets_v4 } from 'googleapis';
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import { JWT } from 'google-auth-library';
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import { getAuthenticationClient } from './GoogleApi';
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import {
utils as xlsxUtils,
} from 'xlsx';
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const Sheets = google.sheets('v4'); // tslint:disable-line:variable-name
export interface ISheetOptions {
scope: string[];
}
export interface IGoogleAuthCredentials {
email: string;
privateKey: string;
}
export interface ISheetUpdateData {
range: string;
values: string[][];
}
export interface ILookupValues {
lookupColumn: string;
lookupValue: string;
}
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export interface IToDeleteRange {
amount: number;
startIndex: number;
sheetId: number;
}
export interface IToDelete {
[key: string]: IToDeleteRange[] | undefined;
columns?: IToDeleteRange[];
rows?: IToDeleteRange[];
}
export type ValueInputOption = 'RAW' | 'USER_ENTERED';
export type ValueRenderOption = 'FORMATTED_VALUE' | 'FORMULA' | 'UNFORMATTED_VALUE';
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export class GoogleSheet {
id: string;
credentials: IGoogleAuthCredentials;
scopes: string[];
constructor(spreadsheetId: string, credentials: IGoogleAuthCredentials, options?: ISheetOptions | undefined) {
// options = <SheetOptions>options || {};
if (!options) {
options = {} as ISheetOptions;
}
this.id = spreadsheetId;
this.credentials = credentials;
this.scopes = options.scope || ['https://www.googleapis.com/auth/spreadsheets'];
}
/**
* Clears values from a sheet
*
* @param {string} range
* @returns {Promise<object>}
* @memberof GoogleSheet
*/
async clearData(range: string): Promise<object> {
const client = await this.getAuthenticationClient();
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// @ts-ignore
const response = await Sheets.spreadsheets.values.clear(
{
auth: client,
spreadsheetId: this.id,
range,
}
);
return response.data;
}
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/**
* Returns the cell values
*/
async getData(range: string, valueRenderMode: ValueRenderOption): Promise<string[][] | undefined> {
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const client = await this.getAuthenticationClient();
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// @ts-ignore
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const response = await Sheets.spreadsheets.values.get(
{
auth: client,
spreadsheetId: this.id,
range,
valueRenderOption: valueRenderMode,
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}
);
return response.data.values as string[][] | undefined;
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}
/**
* Returns the sheets in a Spreadsheet
*/
async spreadsheetGetSheets() {
const client = await this.getAuthenticationClient();
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// @ts-ignore
const response = await Sheets.spreadsheets.get(
{
auth: client,
spreadsheetId: this.id,
fields: 'sheets.properties'
}
);
return response.data;
}
/**
* Sets values in one or more ranges of a spreadsheet.
*/
async spreadsheetBatchUpdate(requests: sheets_v4.Schema$Request[]) { // tslint:disable-line:no-any
const client = await this.getAuthenticationClient();
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// @ts-ignore
const response = await Sheets.spreadsheets.batchUpdate(
{
auth: client,
spreadsheetId: this.id,
requestBody: {
requests,
},
}
);
return response.data;
}
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/**
* Sets the cell values
*/
async batchUpdate(updateData: ISheetUpdateData[], valueInputMode: ValueInputOption) {
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const client = await this.getAuthenticationClient();
// @ts-ignore
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const response = await Sheets.spreadsheets.values.batchUpdate(
{
auth: client,
spreadsheetId: this.id,
valueInputOption: valueInputMode,
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resource: {
data: updateData,
},
}
);
return response.data;
}
/**
* Sets the cell values
*/
async setData(range: string, data: string[][], valueInputMode: ValueInputOption) {
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const client = await this.getAuthenticationClient();
// @ts-ignore
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const response = await Sheets.spreadsheets.values.update(
{
// @ts-ignore
auth: client,
spreadsheetId: this.id,
range,
valueInputOption: valueInputMode,
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resource: {
values: data
}
}
);
return response.data;
}
/**
* Appends the cell values
*/
async appendData(range: string, data: string[][], valueInputMode: ValueInputOption) {
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const client = await this.getAuthenticationClient();
// @ts-ignore
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const response = await Sheets.spreadsheets.values.append(
{
auth: client,
spreadsheetId: this.id,
range,
valueInputOption: valueInputMode,
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resource: {
values: data
}
}
);
return response.data;
}
/**
* Returns the authentication client needed to access spreadsheet
*/
async getAuthenticationClient(): Promise<JWT> {
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return getAuthenticationClient(this.credentials.email, this.credentials.privateKey, this.scopes);
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}
/**
* Returns the given sheet data in a strucutred way
*/
structureData(inputData: string[][], startRow: number, keys: string[], addEmpty?: boolean): IDataObject[] {
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const returnData = [];
let tempEntry: IDataObject, rowIndex: number, columnIndex: number, key: string;
for (rowIndex = startRow; rowIndex < inputData.length; rowIndex++) {
tempEntry = {};
for (columnIndex = 0; columnIndex < inputData[rowIndex].length; columnIndex++) {
key = keys[columnIndex];
if (key) {
// Only add the data for which a key was given and ignore all others
tempEntry[key] = inputData[rowIndex][columnIndex];
}
}
if (Object.keys(tempEntry).length || addEmpty === true) {
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// Only add the entry if data got found to not have empty ones
returnData.push(tempEntry);
}
}
return returnData;
}
/**
* Returns the given sheet data in a strucutred way using
* the startRow as the one with the name of the key
*/
structureArrayDataByColumn(inputData: string[][], keyRow: number, dataStartRow: number): IDataObject[] {
const keys: string[] = [];
if (keyRow < 0 || dataStartRow < keyRow || keyRow >= inputData.length) {
// The key row does not exist so it is not possible to strucutre data
return [];
}
// Create the keys array
for (let columnIndex = 0; columnIndex < inputData[keyRow].length; columnIndex++) {
keys.push(inputData[keyRow][columnIndex]);
}
return this.structureData(inputData, dataStartRow, keys);
}
async appendSheetData(inputData: IDataObject[], range: string, keyRowIndex: number, valueInputMode: ValueInputOption): Promise<string[][]> {
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const data = await this.convertStructuredDataToArray(inputData, range, keyRowIndex);
return this.appendData(range, data, valueInputMode);
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}
getColumnWithOffset (startColumn: string, offset: number): string {
const columnIndex = xlsxUtils.decode_col(startColumn) + offset;
return xlsxUtils.encode_col(columnIndex);
}
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/**
* Updates data in a sheet
*
* @param {IDataObject[]} inputData Data to update Sheet with
* @param {string} indexKey The name of the key which gets used to know which rows to update
* @param {string} range The range to look for data
* @param {number} keyRowIndex Index of the row which contains the keys
* @param {number} dataStartRowIndex Index of the first row which contains data
* @returns {Promise<string[][]>}
* @memberof GoogleSheet
*/
async updateSheetData(inputData: IDataObject[], indexKey: string, range: string, keyRowIndex: number, dataStartRowIndex: number, valueInputMode: ValueInputOption, valueRenderMode: ValueRenderOption): Promise<string[][]> {
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// Get current data in Google Sheet
let rangeStart: string, rangeEnd: string;
let sheet: string | undefined = undefined;
if (range.includes('!')) {
[sheet, range] = range.split('!');
}
[rangeStart, rangeEnd] = range.split(':');
const rangeStartSplit = rangeStart.match(/([a-zA-Z]{1,10})([0-9]{0,10})/);
const rangeEndSplit = rangeEnd.match(/([a-zA-Z]{1,10})([0-9]{0,10})/);
if (rangeStartSplit === null || rangeStartSplit.length !== 3 || rangeEndSplit === null || rangeEndSplit.length !== 3) {
throw new Error(`The range "${range}" is not valid.`);
}
const keyRowRange = `${sheet ? sheet + '!' : ''}${rangeStartSplit[1]}${dataStartRowIndex}:${rangeEndSplit[1]}${dataStartRowIndex}`;
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const sheetDatakeyRow = await this.getData(keyRowRange, valueRenderMode);
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if (sheetDatakeyRow === undefined) {
throw new Error('Could not retrieve the key row!');
}
const keyColumnOrder = sheetDatakeyRow[0];
const keyIndex = keyColumnOrder.indexOf(indexKey);
if (keyIndex === -1) {
throw new Error(`Could not find column for key "${indexKey}"!`);
}
const startRowIndex = rangeStartSplit[2] || '';
const endRowIndex = rangeEndSplit[2] || '';
const keyColumn = this.getColumnWithOffset(rangeStartSplit[1], keyIndex);
const keyColumnRange = `${sheet ? sheet + '!' : ''}${keyColumn}${startRowIndex}:${keyColumn}${endRowIndex}`;
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const sheetDataKeyColumn = await this.getData(keyColumnRange, valueRenderMode);
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if (sheetDataKeyColumn === undefined) {
throw new Error('Could not retrieve the key column!');
}
// TODO: The data till here can be cached optionally. Maybe add an option which can
// can be activated if it is used in a loop and nothing else updates the data.
// Remove the first row which contains the key
sheetDataKeyColumn.shift();
// Create an Array which all the key-values of the Google Sheet
const keyColumnIndexLookup = sheetDataKeyColumn.map((rowContent) => rowContent[0] );
const updateData: ISheetUpdateData[] = [];
let itemKey: string | number | undefined | null;
let propertyName: string;
let itemKeyIndex: number;
let updateRowIndex: number;
let updateColumnName: string;
for (const inputItem of inputData) {
itemKey = inputItem[indexKey] as string;
// if ([undefined, null].includes(inputItem[indexKey] as string | undefined | null)) {
if (itemKey === undefined || itemKey === null) {
// Item does not have the indexKey so we can ignore it
continue;
}
// Item does have the key so check if it exists in Sheet
itemKeyIndex = keyColumnIndexLookup.indexOf(itemKey as string);
if (itemKeyIndex === -1) {
// Key does not exist in the Sheet so it can not be updated so skip it
continue;
}
// Get the row index in which the data should be updated
updateRowIndex = keyColumnIndexLookup.indexOf(itemKey) + dataStartRowIndex + 1;
// Check all the properties in the sheet and check which ones exist on the
// item and should be updated
for (propertyName of keyColumnOrder) {
if (propertyName === indexKey) {
// Ignore the key itself as that does not get changed it gets
// only used to find the correct row to update
continue;
}
if (inputItem[propertyName] === undefined || inputItem[propertyName] === null) {
// Property does not exist so skip it
continue;
}
// Property exists so add it to the data to update
// Get the column name in which the property data can be found
updateColumnName = this.getColumnWithOffset(rangeStartSplit[1], keyColumnOrder.indexOf(propertyName));
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updateData.push({
range: `${sheet ? sheet + '!' : ''}${updateColumnName}${updateRowIndex}`,
values: [
[
inputItem[propertyName] as string,
],
],
});
}
}
return this.batchUpdate(updateData, valueInputMode);
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}
/**
* Looks for a specific value in a column and if it gets found it returns the whole row
*
* @param {string[][]} inputData Data to to check for lookup value in
* @param {number} keyRowIndex Index of the row which contains the keys
* @param {number} dataStartRowIndex Index of the first row which contains data
* @param {ILookupValues[]} lookupValues The lookup values which decide what data to return
* @param {boolean} [returnAllMatches] Returns all the found matches instead of only the first one
* @returns {Promise<IDataObject[]>}
* @memberof GoogleSheet
*/
async lookupValues(inputData: string[][], keyRowIndex: number, dataStartRowIndex: number, lookupValues: ILookupValues[], returnAllMatches?: boolean): Promise<IDataObject[]> {
const keys: string[] = [];
if (keyRowIndex < 0 || dataStartRowIndex < keyRowIndex || keyRowIndex >= inputData.length) {
// The key row does not exist so it is not possible to look up the data
throw new Error(`The key row does not exist!`);
}
// Create the keys array
for (let columnIndex = 0; columnIndex < inputData[keyRowIndex].length; columnIndex++) {
keys.push(inputData[keyRowIndex][columnIndex]);
}
const returnData = [
inputData[keyRowIndex],
];
// Loop over all the lookup values and try to find a row to return
let rowIndex: number;
let returnColumnIndex: number;
lookupLoop:
for (const lookupValue of lookupValues) {
returnColumnIndex = keys.indexOf(lookupValue.lookupColumn);
if (returnColumnIndex === -1) {
throw new Error(`The column "${lookupValue.lookupColumn}" could not be found!`);
}
// Loop over all the items and find the one with the matching value
for (rowIndex = dataStartRowIndex; rowIndex < inputData.length; rowIndex++) {
if (inputData[rowIndex][returnColumnIndex].toString() === lookupValue.lookupValue.toString()) {
returnData.push(inputData[rowIndex]);
if (returnAllMatches !== true) {
continue lookupLoop;
}
}
}
// If value could not be found add an empty one that the order of
// the returned items stays the same
if (returnAllMatches !== true) {
returnData.push([]);
}
}
return this.structureData(returnData, 1, keys, true);
}
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async convertStructuredDataToArray(inputData: IDataObject[], range: string, keyRowIndex: number): Promise<string[][]> {
let startColumn, endColumn;
let sheet: string | undefined = undefined;
if (range.includes('!')) {
[sheet, range] = range.split('!');
}
[startColumn, endColumn] = range.split(':');
let getRange = `${startColumn}${keyRowIndex + 1}:${endColumn}${keyRowIndex + 1}`;
if (sheet !== undefined) {
getRange = `${sheet}!${getRange}`;
}
const keyColumnData = await this.getData(getRange, 'UNFORMATTED_VALUE');
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if (keyColumnData === undefined) {
throw new Error('Could not retrieve the column data!');
}
const keyColumnOrder = keyColumnData[0];
const setData: string[][] = [];
let rowData: string[] = [];
inputData.forEach((item) => {
rowData = [];
keyColumnOrder.forEach((key) => {
if (item.hasOwnProperty(key) && item[key]) {
rowData.push(item[key]!.toString());
} else {
rowData.push('');
}
});
setData.push(rowData);
});
return setData;
}
}