function createTables()

in common.js [130:225]
94 lines of code
2 McCabe index (conditional complexity)

function createTables(dynamoDB, callback) {
    // processed files table spec
    var pfKey = 'loadFile';
    var processedFilesSpec = {
        AttributeDefinitions: [{
            AttributeName: pfKey,
            AttributeType: 'S'
        }],
        KeySchema: [{
            AttributeName: pfKey,
            KeyType: 'HASH'
        }],
        TableName: filesTable,
        ProvisionedThroughput: {
            ReadCapacityUnits: 1,
            WriteCapacityUnits: 5
        }
    };
    var configKey = s3prefix;
    var configSpec = {
        AttributeDefinitions: [{
            AttributeName: configKey,
            AttributeType: 'S'
        }],
        KeySchema: [{
            AttributeName: configKey,
            KeyType: 'HASH'
        }],
        TableName: configTable,
        ProvisionedThroughput: {
            ReadCapacityUnits: 1,
            WriteCapacityUnits: 5
        }
    };

    var batchKey = batchId;
    var inputLoc = s3prefix;
    var batchSpec = {
        AttributeDefinitions: [{
            AttributeName: batchKey,
            AttributeType: 'S'
        }, {
            AttributeName: 'status',
            AttributeType: 'S'
        }, {
            AttributeName: lastUpdate,
            AttributeType: 'N'
        }, {
            AttributeName: inputLoc,
            AttributeType: 'S'
        }],
        KeySchema: [{
            AttributeName: inputLoc,
            KeyType: 'HASH'
        }, {
            AttributeName: batchKey,
            KeyType: 'RANGE'
        }],
        TableName: batchTable,
        ProvisionedThroughput: {
            ReadCapacityUnits: 1,
            WriteCapacityUnits: 5
        },
        GlobalSecondaryIndexes: [{
            IndexName: batchStatusGSI,
            KeySchema: [{
                AttributeName: 'status',
                KeyType: 'HASH'
            }, {
                AttributeName: lastUpdate,
                KeyType: 'RANGE'
            }],
            Projection: {
                ProjectionType: 'ALL'
            },
            ProvisionedThroughput: {
                ReadCapacityUnits: 1,
                WriteCapacityUnits: 5
            }
        }]
    };

    let functions = [
        createTableAndWait.bind(undefined, processedFilesSpec, dynamoDB),
        createTableAndWait.bind(undefined, batchSpec, dynamoDB),
        createTableAndWait.bind(undefined, configSpec, dynamoDB)
    ];
    async.waterfall(functions, function (err, results) {
        if (err) {
            logger.error(err);
            callback(err);
        } else {
            callback();
        }
    });
};