constant-contact-v3

Constant Contact API v3 client for server JavaScript. Requires Node >= 18, or any runtime that supports fetch and either Buffer or btoa. Fully typed with TypeScript, based on Constant Contact's OpenAPI spec. Initially generated using swagger-typescript-api, then modified to add authentication support.

This library will automatically handle refreshing tokens as long as the token remains in memory. You can also provide a callback function to persist the token.

Installation

npm install constant-contact-v3

yarn install constant-contact-v3

pnpm install constant-contact-v3

Options

clientId - Your Constant Contact API key. clientSecret - Your Constant Contact API secret. token - Optional. An existing token to use for authentication. Token is in the format ConstantContactToken. onTokenUpdate - Optional. A callback function that will be called when the token is updated. This is useful for persisting the token. enableThrows - Optional. If true, the client will throw an error when the API returns an error. If false, the client will return the error as part of the response object. The default is false.

export type ConstantContactOptions = {
  clientId: string;
  clientSecret: string;
  token?: ConstantContactToken;
  onTokenUpdate?: (token: ConstantContactToken) => void;
  enableThrows?: boolean;
};

Usage

Before using any of the main routes, you need to acquire an access token. constant-contact-v3 provides all the functions needed for the Authorization Code Flow. Other flows are not currently supported, but would be trivial to add if you are so inclined.

import { ConstantContact } from 'constant-contact-v3';

const api = new ConstantContact({
  clientId: 'YOUR_CLIENT_ID',
  clientSecret: 'YOUR_CLIENT_SECRET',
  onTokenUpdate: token => saveToken(token),
});

const uri = api.oAuth.getAuthorizationURL({
  redirectUri: 'http://localhost:3000/callback',
  state: 'some-state',
  responseType: 'code',
  scope: [
    'account_read',
    'account_update',
    'campaign_data',
    'contact_data',
    'offline_access',
  ],
});

// then redirect the user to the uri. upon return, you will have a code that you can use to get a token.
const code = 'YOUR_CODE';

const tokenRes = await api.oAuth.exchangeAuthorizationCode(
  code,
  environment.constantContact.redirectUri,
);
if (!tokenRes.ok) throw new Error('Failed to exchange code for token');

// then you are ready to go!

constant-contact-v3 will automatically refresh the token as needed. It is saved in the class instance of ConstantContact, so you must create multiple to handle multiple users.

Future Work

• Add support for other OAuth flows.