Google gmail api client
Here's a step-by-step guide on how to use the Google Gmail API client:
Prerequisites
- Create a Google Cloud Platform project: Go to the Google Cloud Console and create a new project.
- Enable the Gmail API: In the sidebar, click on "APIs & Services" and search for "Gmail API". Click on the result, then click on the "Enable" button.
- Create credentials: Click on "Create Credentials" and select "OAuth client ID". Choose "Other" as the application type and enter a name for your client ID. Click on "Create" and copy the client ID and client secret.
- Install the Google API Client Library: You can install the library using npm or yarn:
npm install google-api-library
oryarn add google-api-library
.
Setting up the API Client
- Import the library:
const { google } = require('googleapis');
- Set up the API client:
const auth = new google.auth.GoogleAuth({ // your client ID, client secret, and redirect URI });
- Authenticate the client:
auth.getClient((err, client) => { // use the client });
Using the API Client
- Get the Gmail API client:
const gmail = google.gmail('v1');
- List labels:
gmail.users.labels.list({ userId: 'me' }, (err, res) => { // handle the response });
- Get a label:
gmail.users.labels.get({ userId: 'me', labelId: 'labelId' }, (err, res) => { // handle the response });
- Create a label:
gmail.users.labels.create({ userId: 'me', requestBody: { name: 'NewLabel' } }, (err, res) => { // handle the response });
- Update a label:
gmail.users.labels.update({ userId: 'me', labelId: 'labelId', requestBody: { name: 'UpdatedLabel' } }, (err, res) => { // handle the response });
- Delete a label:
gmail.users.labels.delete({ userId: 'me', labelId: 'labelId' }, (err, res) => { // handle the response });
Example Code
Here's an example code snippet that lists all labels for the authenticated user:
const { google } = require('googleapis');
const auth = new google.auth.GoogleAuth({
// your client ID, client secret, and redirect URI
});
auth.getClient((err, client) => {
if (err) {
console.error(err);
return;
}
const gmail = google.gmail('v1');
gmail.users.labels.list({ userId: 'me' }, (err, res) => {
if (err) {
console.error(err);
return;
}
console.log(res.data.labels);
});
});
Error Handling
Make sure to handle errors properly by checking the err
object in the callback function. You can also use the try-catch
block to catch any errors that may occur.
Security Considerations
When using the Gmail API client, make sure to:
- Store your client ID and client secret securely
- Use OAuth 2.0 authentication to authenticate your API requests
- Handle errors and exceptions properly
- Follow the Google API Client Library's security guidelines