Developers often need to send email notifications as part of their applications. SendGrid is a popular service for sending emails, and their API can be integrated with TypeScript applications.
The first step is to create a SendGrid account. Once you have an account, you'll need to create an API key. Be sure to give your API key a name and select Full Access for the permissions.
Now that you have a SendGrid account and API key, you can install the TypeScript SDK. The SDK will allow you to interact with the SendGrid API in your TypeScript code.
npm install @sendgrid/client --save
With the SDK installed, you can now write TypeScript code to send email notifications. The code below shows how to send a basic email notification.
import * as SendGrid from '@sendgrid/client';
const sendgrid = SendGrid.SendGridApi.v3({
apiKey: 'your-sendgrid-api-key',
});
const message = {
to: 'example@example.com',
from: 'example@example.com',
subject: 'Hello, world!',
text: 'This is a test email from my TypeScript application.',
};
sendgrid.send(message).then(() => {
console.log('Email sent successfully!');
}).catch((error) => {
console.error(error);
});
In the code above, we first imported the SendGrid SDK. Then, we initialized the SDK with our SendGrid API key. Next, we created a message object with the recipient, sender, subject, and text of our email. Finally, we used the SDK to send the message.
It's important to handle errors when sending email notifications. The code below shows how to catch and handle errors when using the SendGrid SDK.
import * as SendGrid from '@sendgrid/client';
const sendgrid = SendGrid.SendGridApi.v3({
apiKey: 'your-sendgrid-api-key',
});
const message = {
to: 'example@example.com',
from: 'example@example.com',
subject: 'Hello, world!',
text: 'This is a test email from my TypeScript application.',
};
sendgrid.send(message).then(() => {
console.log('Email sent successfully!');
}).catch((error) => {
console.error(error);
if (error.response) {
console.error(error.response.body);
}
});
In the code above, we added a catch block to handle errors. In the catch block, we log the error and also the error response from the SendGrid API. This is helpful for debugging purposes.