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confirm_email.js
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confirm_email.js
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const aws = require('aws-sdk');
const moment = require('moment');
const UsersTableName = process.env.dynamodb_users_table_name;
const dynamoDB = new aws.DynamoDB.DocumentClient();
async function getUser(userId) {
const params = {
TableName: UsersTableName,
Key: {
user_id: userId
},
ProjectionExpression:
'email_token'
};
const data = await dynamoDB.get(params).promise();
return data.Item;
}
async function confirmEmail(userId) {
const timestamp = moment().format('YYYY-MM-DDTHH:mm:ss');
const params = {
TableName: UsersTableName,
Key: {
user_id: userId
},
UpdateExpression: 'set user_verifications.email = :val, updated_at = :now',
ExpressionAttributeValues: {
':val': true,
':now': timestamp
},
ReturnValues: 'UPDATED_NEW'
};
const data = await dynamoDB.update(params).promise();
return data.Attributes;
}
exports.handler = async (event) => {
const userId = event.queryStringParameters.user;
const emailToken = event.queryStringParameters.token;
const user = await getUser(userId);
if (!user || user.email_token !== emailToken) {
return {
statusCode: 401,
headers: { 'Access-Control-Allow-Origin': '*' },
body: JSON.stringify(
{
message: 'Unauthorized'
}
)
};
}
await confirmEmail(userId);
return {
statusCode: 200,
headers: { 'Access-Control-Allow-Origin': '*' },
body: JSON.stringify(
{
message: 'Your email has been confirmed'
}
)
};
};