Sample AWS Lambda Service Handlers

loadSavedDesignService.js

var AWS = require( 'aws-sdk' ),
    env = process.env;


var db = new AWS.DynamoDB({
    accessKeyId: env.ACCESS_KEY_ID,
    secretAccessKey: env.SECRET_ACCESS_KEY
});

module.exports = {
    handler: function ( event, context ) {
      
        if ( !event.email ) {
            return context.fail( 'Please specify an `email`' );
        }

        db.scan({
            TableName: 'tbl_SavedDesigns',
            Select: 'ALL_ATTRIBUTES',
            FilterExpression: 'Email = :v_email',
            ExpressionAttributeValues: {
                ':v_email': {
                    S: event.email
                }
            }
        }, function ( err, data ) {
            if ( err ) {
                context.fail( err );
            } else {
                context.succeed( data );
            }
        });
    }
}

saveDesignService.js

var AWS     = require( 'aws-sdk' ),
    crypto  = require( 'crypto' ),
    env     = process.env;
    


var db = new AWS.DynamoDB({
    accessKeyId: env.ACCESS_KEY_ID,
    secretAccessKey: env.SECRET_ACCESS_KEY
});

function generateToken() {
    return crypto.createHash( 'md5' ).update( ''+Date.now() ).digest( 'hex' ).substr( 0, 7 );
}

module.exports = {
    handler: function ( event, context ) {

        if ( !event.saveId && !event.email ) {
            return context.fail( 'Please specify an `email`' );
        }

        if ( !event.saveId && !event.clientId ) {
            return context.fail( 'Please specify a `clientId`' );
        }

        if ( !event.selected ) {
            return context.fail( 'Please specify valid `selected` JSON' );
        }

        for ( var category in event.selected ) {
            event.selected[category] = {
                S: event.selected[category]
            }
        }

        var saveId = generateToken();

        db.putItem({
            TableName: 'tbl_SavedDesigns',
            Item: {
                SaveID: {
                    S: event.saveId || saveId
                },
                Email: {
                    S: event.email
                },
                ClientID: {
                    S: event.clientId
                },
                Selected: {
                    M: event.selected
                }
            }
        }, function ( err, data ) {

            if ( err ) {
                context.fail( err  );
            } else {
                context.succeed( data );
            }
        });
    }
}