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Add new Amazon Cognito users to DynamoDB with Lambda
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var aws = require('aws-sdk'); | |
var ddb = new aws.DynamoDB({apiVersion: '2012-10-08'}); | |
exports.handler = async (event, context) => { | |
console.log(event); | |
let date = new Date(); | |
const tableName = process.env.TABLE_NAME; | |
const region = process.env.REGION; | |
const defaultAvi = 'https://YOUR/DEFAULT/IMAGE'; | |
console.log("table=" + tableName + " -- region=" + region); | |
aws.config.update({region: region}); | |
// If the required parameters are present, proceed | |
if (event.request.userAttributes.sub) { | |
// -- Write data to DDB | |
let ddbParams = { | |
Item: { | |
'id': {S: event.request.userAttributes.sub}, | |
'__typename': {S: 'User'}, | |
'picture': {S: defaultAvi}, | |
'username': {S: event.userName}, | |
'name': {S: event.request.userAttributes.name}, | |
'skillLevel': {N: '0'}, | |
'email': {S: event.request.userAttributes.email}, | |
'createdAt': {S: date.toISOString()}, | |
}, | |
TableName: tableName | |
}; | |
// Call DynamoDB | |
try { | |
await ddb.putItem(ddbParams).promise() | |
console.log("Success"); | |
} catch (err) { | |
console.log("Error", err); | |
} | |
console.log("Success: Everything executed correctly"); | |
context.done(null, event); | |
} else { | |
// Nothing to do, the user's email ID is unknown | |
console.log("Error: Nothing was written to DDB or SQS"); | |
context.done(null, event); | |
} | |
}; |
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