Ng-google-sheets-db NPM

ng-google-sheets-db - Angular Google Sheets DB

Use Google Sheets as your (read-only) backend for your Angular app!

const attributesMapping = {
  id: "ID",
  name: "Name",
  email: "Email Address",
  contact: {
    _prefix: "Contact ",
    street: "Street",
    streetNumber: "Street Number",
    zip: "ZIP",
    city: "City",
  },
  skills: {
    _prefix: "Skill ",
    _listField: true,
  },
};

googleSheetsDbService
  .get(
    "1gSc_7WCmt-HuSLX01-Ev58VsiFuhbpYVo8krbPCvvqA",
    "Characters",
    attributesMapping
  )
  .subscribe((characters: object[]) => {
    // Use the characters here
  });

Installation

ng add ng-google-sheets-db

npm install ng-google-sheets-db

Usage

Google Sheets

Create a Google Sheet:
- The first row must be the header.
- The following rows are your entries, one entry per row.
- You may have an active column, with which you can enable or disable rows/entries.
- A Google Sheets demo spreadsheet is available here.
Share your sheet:
- File → Share → On the bottom of the modal at "Get Link" click Change to anyone with the link to be "Viewer".
- Get the Spreadsheet ID (i.e. 1gSc_7WCmt-HuSLX01-Ev58VsiFuhbpYVo8krbPCvvqA): It is part of the Google spreadsheet URL.
- Get the Sheet Name: The name of the worksheet can be found at the bottom of your Google spreadsheet.
Optional: It may be a good idea to enable 2-Step Verification for your Google account, if you have not done it yet :wink:.

Google Cloud Platform (GCP)

A good overview guide is the Get started as a Workspace developer.

Create a new project in the Google Cloud Console.
Enable Google Sheets API: APIs & Services → Enable APIs and Services → Search for "Google Sheets API" → ENABLE.
Create an API key: APIs & Services → Credentials → + CREATE CREDENTIALS → API key → RESTRICT KEY → In "Application restrictions" choose "HTTP referrers (web sites)" with "Website restrictions" and in "API restrictions" choose "Restrict key" and select "Google Sheets API" → SAVE.
Get the generated API key.

Angular

Add GoogleSheetsDbService to your app's module as a provider and Angular's HttpClientModule to the imports:

import { HttpClientModule } from '@angular/common/http';

import { API_KEY, GoogleSheetsDbService } from 'ng-google-sheets-db';

@NgModule({
  ...
  imports: [
    HttpClientModule,
    ...
  ],
  providers: [
    {
      provide: API_KEY,
      useValue: <YOUR_GOOGLE_SHEETS_API_KEY>,
    },
    GoogleSheetsDbService
  ],
  ...
})
export class AppModule { }

Import and inject into your component's constructor:

import { GoogleSheetsDbService } from 'ng-google-sheets-db';

@Component({
  ...
})
export class YourComponent implements OnInit {
  characters$: Observable<Character[]>;

  constructor(private googleSheetsDbService: GoogleSheetsDbService) { }

  ngOnInit(): void {
    this.characters$ = this.googleSheetsDbService.get<Character>('1gSc_7WCmt-HuSLX01-Ev58VsiFuhbpYVo8krbPCvvqA', "Characters", characterAttributesMapping);
  }

Attributes Mapping

The attributesMapping maps the Google spreadsheet columns to to your outcome object.

const attributesMapping = {
  id: "ID",
  name: "Name",
  email: "Email Address",
  contact: {
    _prefix: "Contact ",
    street: "Street",
    streetNumber: "Street Number",
    zip: "ZIP",
    city: "City",
  },
  skills: {
    _prefix: "Skill ",
    _listField: true,
  },
};

For example, the Google spreadsheet column Email Address is mapped to the outcome object attribute email.

Nested objects

contact is an example of a nested object. You may define a _prefix as a prefix for all columns of the nested object. Please note that the _prefix may need a trailing whitespace.

Lists

skills is an example of a list. You need to set _listField and a _prefix for all columns of the list. In this example, all columns starting with Skill and an increasing number are part of the list, i.e. Skill 1, Skill 2, etc. Please note that the _prefix may need a trailing whitespace.

Methods

get(spreadsheetId: string, worksheetName: string, attributesMapping: object | string[]): Observable<T[]>

const allCharacters$: Observable<Character> =
  googleSheetsDbService.get<Character>(
    "1gSc_7WCmt-HuSLX01-Ev58VsiFuhbpYVo8krbPCvvqA",
    "Characters",
    attributesMapping
  );

Get all rows from the Google spreadsheet as an Observable of objects or a given type as type variable T.

getActive(spreadsheetId: string, worksheetName: string, attributesMapping: object | string[], isActiveColumnName: string = 'is_active', activeValues: string[] | string = null): Observable<T[]>

const activeCharacters$: Observable<Character> =
  googleSheetsDbService.getActive<Character>(
    "1gSc_7WCmt-HuSLX01-Ev58VsiFuhbpYVo8krbPCvvqA",
    "Characters",
    attributesMapping,
    "Active"
  );

Get "active" rows from the Google spreadsheet as an Observable of objects or a given type as type variable T. You may have an active column with name isActiveColumnName, with which you can enable or disable rows/entries. "Active" rows have the value true, 1 or yes. You may also define your own activeValues.