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Cómo funciona esta extensión

Use this extension to render and send emails that contain the information from documents added to a specified Cloud Firestore collection.

Adding a document triggers this extension to send an email built from the document's fields. The document's top-level fields specify the email sender and recipients, including to , cc , and bcc options (each supporting UIDs). The document's message field specifies the other email elements, like subject line and email body (either plaintext or HTML)

Here's a basic example document write that would trigger this extension:

admin.firestore().collection('mail').add({
  to: 'someone@example.com',
  message: {
    subject: 'Hello from Firebase!',
    html: 'This is an <code>HTML</code> email body.',
  },
})

You can also optionally configure this extension to render emails using Handlebar templates. Each template is a document stored in a Cloud Firestore collection.

When you configure this extension, you'll need to supply your SMTP credentials for mail delivery . Note that this extension is for use with bulk email service providers, like SendGrid, Mailgun, etc.

Additional setup

Before installing this extension, make sure that you've set up a Cloud Firestore database in your Firebase project.

Billing

To install an extension, your project must be on the Blaze (pay as you go) plan

• You will be charged a small amount (typically around $0.01/month) for the Firebase resources required by this extension (even if it is not used).
• This extension uses other Firebase and Google Cloud Platform services, which have associated charges if you exceed the service’s no-cost tier:
• Cloud Firestore
• Cloud Functions (Node.js 10+ runtime. See FAQs )

Usage of this extension also requires you to have SMTP credentials for mail delivery. You are responsible for any associated costs with your usage of your SMTP provider.