lib/formatter.js
function DynamoDBFormatter() {    
    var datatypes = typeof(window) === "undefined" ? require("./datatypes").DynamoDBDatatype : window.DynamoDBDatatype;
    var t = new datatypes();
    var EmptyConditionArray = "Need to pass in an array with 1 or more Condition Objects.";
    var BadElementInConditionArray = "Only Condition objects are allowed as members of the array.";
    var InvalidCondition = "Need to pass in a valid Condition Object.";

    this.setCustomAgent = function (request) {
        var isBrowser = typeof(window) === "undefined";
        var prefix = isBrowser ? "" : "X-Amz-";
        var sdk = isBrowser ? "nodejs" : "js";
        var currentHeader = request.httpRequest.headers[prefix + 'User-Agent'];
        request.httpRequest.headers[prefix + 'User-Agent'] = currentHeader + "/document-sdk-" + sdk;
    }

    function formatAttrValInput(attrValueMap) {
        var attributeValueMap = {};
        for (var attr in attrValueMap) {
            var value = attrValueMap[attr];
            attributeValueMap[attr] = t.formatDataType(value);
        }
        return attributeValueMap;
    }
    
    function formatConditions(conditions) {
        if (conditions.prototype && conditions.prototype.instanceOf === "DynamoDBConditionObject") {
            conditions = [conditions];
        } else {
            if (Array.isArray(conditions)) {
                if (conditions.length === 0) {
                    throw new Error(EmptyConditionArray);
                }
                for (var index = 0; index < conditions.length; index++) {
                    var condition = conditions[index];
                    if (!(condition.prototype) || !(condition.prototype.instanceOf === "DynamoDBConditionObject")) {
                        throw new Error(BadElementInConditionArray);
                    }
                }
            } else {
                throw new Error(InvalidCondition);
            }
        }
    
        var expected = {};
        for (var index = 0; index < conditions.length; index++) {
            var condition = conditions[index];
            expected[condition.key] = condition.format();
        }
        return expected;
    }
    
    function formatUpdates(updates) {
        var attrUpdates = {};
        for (var attr in updates) {
            if (updates.hasOwnProperty(attr)) {
                var actionValue = {};
                var value = updates[attr].Value;
                var action = updates[attr].Action;
    
                actionValue.Action = action;
                if (value !== undefined) {
                    actionValue.Value = t.formatDataType(value);
                }
                attrUpdates[attr] = actionValue;
            }
        }
        
         return attrUpdates;
    }
    
    function handleWriteRequest(request) {
        var requestCopy = {};
    
        if (request.DeleteRequest) {
            var key = request.DeleteRequest.Key;
            requestCopy.DeleteRequest = {};
            requestCopy.DeleteRequest.Key = formatAttrValInput(key);
        } else {
            var item = request.PutRequest.Item;
            requestCopy.PutRequest = {};
            requestCopy.PutRequest.Item = formatAttrValInput(item);
        }
    
        return requestCopy;
    }
    
    function formatRequestItems(requests) {
        var requestItems = {};
    
        for (var table in requests) {
            if (requests.hasOwnProperty(table)) {
                requestItems[table] = {};
    
                var request = requests[table];
                if (Array.isArray(request)) {
                    var writeRequests = [];
                    for (var wIndex in request) {
                        writeRequests.push(handleWriteRequest(request[wIndex]));
                    }
                    requestItems[table] = writeRequests;
                } else {
                    if (request.AttributesToGet) {
                        requestItems[table].AttributesToGet = request.AttributesToGet;
                    }
                    if (request.ConsistentRead) {
                        requestItems[table].ConsistentRead = request.ConsistentRead;
                    }
                    if (request.ProjectionExpression) {
                        requestItems[table].ProjectionExpression = request.ProjectionExpression;
                    }
                    if (request.ExpressionAttributeNames) {
                        requestItems[table].ExpressionAttributeNames = request.ExpressionAttributeNames;
                    }
                    if (request.Keys) {
                        var keys = [];
                        for (var gIndex in request.Keys) {
                            var key = request.Keys[gIndex];
                            keys.push(formatAttrValInput(key));
                        }
                        requestItems[table].Keys = keys;
                    }
                }
            }
        }
    
        return requestItems;
    }
    
    var inputMap = { "AttributeUpdates": formatUpdates,
                     "ExclusiveStartKey": formatAttrValInput,
                     "Expected": formatConditions,
                     "ExpressionAttributeValues": formatAttrValInput,
                     "Item": formatAttrValInput,
                     "Key": formatAttrValInput,
                     "KeyConditions": formatConditions,
                     "RequestItems": formatRequestItems,
                     "ScanFilter": formatConditions,
                     "QueryFilter": formatConditions};
    
    
    function formatAttrValOutput(item) {
        var attrList = {};
        for (var attribute in item) {
            var keys = Object.keys(item[attribute]);
            var key = keys[0];
            var value = item[attribute][key];
        
            value = t.formatWireType(key, value); 
            attrList[attribute] = value;
        }
    
        return attrList;
    }
    
    function formatItems(items) {
        for (var index in items) {
            items[index] = formatAttrValOutput(items[index]);
        }
        return items;
    }
    
    function handleCollectionKey(metrics) {
        var collectionKey = metrics.ItemCollectionKey;
        metrics.ItemCollectionKey = formatAttrValOutput(collectionKey);
        return metrics;
    }
    
    function handleBatchMetrics(metrics) {
        for (var table in metrics) {
            if (metrics.hasOwnProperty(table)) {
                var listOfKeys = metrics[table];
                for (var index in listOfKeys) {
                    listOfKeys[index] = handleCollectionKey(listOfKeys[index]);
                }
            }
        }
        return metrics;
    }
    
    function formatMetrics(metrics) {
        var collectionKey = metrics.ItemCollectionKey;
        if (collectionKey) {
            metrics = handleCollectionKey(metrics);
        } else {
            metrics = handleBatchMetrics(metrics);
        }
        return metrics;
    }
    
    function formatResponses(responses) {
        for (var table in responses) {
            if (responses.hasOwnProperty(table)) {
                var listOfItems = responses[table];
                for (var index in listOfItems) {
                    listOfItems[index] = formatAttrValOutput(listOfItems[index]);
                }
            }
        }
    
        return responses;
    }
    
    function formatUnprocessedItems(unprocessedItems) {
        for(var table in unprocessedItems) {
            if (unprocessedItems.hasOwnProperty(table)) {
                var tableInfo = unprocessedItems[table];
                for (var index in tableInfo) {
                    var request = tableInfo[index];
                    if (request.DeleteRequest) {
                        tableInfo[index].DeleteRequest.Key = formatAttrValOutput(request.DeleteRequest.Key);
                    } else {
                        tableInfo[index].PutRequest.Item = formatAttrValOutput(request.PutRequest.Item);
                    }
                }
            }
        }
        return unprocessedItems;
    }
    
    function formatUnprocessedKeys(unprocessedKeys) {
        for (var table in unprocessedKeys) {
            if (unprocessedKeys.hasOwnProperty(table)) {
                var tableInfo = unprocessedKeys[table];
                var listOfKeys = tableInfo.Keys;
                for (var index in listOfKeys) {
                    tableInfo.Keys[index] = formatAttrValOutput(listOfKeys[index]);
                }
            }
        }
    
        return unprocessedKeys;
    }
    
    /**
     * DynamoDBFormatter specifically for wrapping DynamoDB response objects.
     *
     * @function formatOutput
     * @memberOf DynamoDBFormatter#
     * @params {object} response Response object directly passed out by the service.
     * @returns {object} Wrapped up response object.
     */
    this.formatOutput = function(response) {
        var outputMap = {"Attributes": formatAttrValOutput,
                         "Item": formatAttrValOutput,
                         "Items": formatItems,
                         "ItemCollectionMetrics": formatMetrics,
                         "LastEvaluatedKey": formatAttrValOutput,
                         "Responses": formatResponses,
                         "UnprocessedKeys": formatUnprocessedKeys,
                         "UnprocessedItems": formatUnprocessedItems};
    
    
        var data = response.data;
        if (data) {
            for (var key in data) {
                if (data.hasOwnProperty(key)) {
                    var formatFunc = outputMap[key];
                    if (formatFunc) {
                        response.data[key] = formatFunc(data[key]);
                    } 
                }
            }
        }
    };
    
    /**
     * DynamoDBFormatter specifically for unwrapping DynamoDB request objects.
     *
     * @function formatInput
     * @memberOf DynamoDBFormatter#
     * @params {object} request Request object created by the service.
     * @return {object} Returns aws sdk version of the request.
     */
    this.formatInput = function (request) {
        var paramsCopy = {};
        var params = request.params;
    
        for (var key in params) {
            if (params.hasOwnProperty(key)) {
                var param = params[key];
                var formatFunc = inputMap[key];
                if (formatFunc) {
                    param = formatFunc(param);
                }
                paramsCopy[key] = param;
            }
        }
    
        request.params = paramsCopy;
    };
}
function DynamoDBFormatter() {    
    var datatypes = typeof(window) === "undefined" ? require("./datatypes").DynamoDBDatatype : window.DynamoDBDatatype;
    var t = new datatypes();
    var EmptyConditionArray = "Need to pass in an array with 1 or more Condition Objects.";
    var BadElementInConditionArray = "Only Condition objects are allowed as members of the array.";
    var InvalidCondition = "Need to pass in a valid Condition Object.";

    this.setCustomAgent = function (request) {
        var isBrowser = typeof(window) === "undefined";
        var prefix = isBrowser ? "" : "X-Amz-";
        var sdk = isBrowser ? "nodejs" : "js";
        var currentHeader = request.httpRequest.headers[prefix + 'User-Agent'];
        request.httpRequest.headers[prefix + 'User-Agent'] = currentHeader + "/document-sdk-" + sdk;
    }

    function formatAttrValInput(attrValueMap) {
        var attributeValueMap = {};
        for (var attr in attrValueMap) {
            var value = attrValueMap[attr];
            attributeValueMap[attr] = t.formatDataType(value);
        }
        return attributeValueMap;
    }
    
    function formatConditions(conditions) {
        if (conditions.prototype && conditions.prototype.instanceOf === "DynamoDBConditionObject") {
            conditions = [conditions];
        } else {
            if (Array.isArray(conditions)) {
                if (conditions.length === 0) {
                    throw new Error(EmptyConditionArray);
                }
                for (var index = 0; index < conditions.length; index++) {
                    var condition = conditions[index];
                    if (!(condition.prototype) || !(condition.prototype.instanceOf === "DynamoDBConditionObject")) {
                        throw new Error(BadElementInConditionArray);
                    }
                }
            } else {
                throw new Error(InvalidCondition);
            }
        }
    
        var expected = {};
        for (var index = 0; index < conditions.length; index++) {
            var condition = conditions[index];
            expected[condition.key] = condition.format();
        }
        return expected;
    }
    
    function formatUpdates(updates) {
        var attrUpdates = {};
        for (var attr in updates) {
            if (updates.hasOwnProperty(attr)) {
                var actionValue = {};
                var value = updates[attr].Value;
                var action = updates[attr].Action;
    
                actionValue.Action = action;
                if (value !== undefined) {
                    actionValue.Value = t.formatDataType(value);
                }
                attrUpdates[attr] = actionValue;
            }
        }
        
         return attrUpdates;
    }
    
    function handleWriteRequest(request) {
        var requestCopy = {};
    
        if (request.DeleteRequest) {
            var key = request.DeleteRequest.Key;
            requestCopy.DeleteRequest = {};
            requestCopy.DeleteRequest.Key = formatAttrValInput(key);
        } else {
            var item = request.PutRequest.Item;
            requestCopy.PutRequest = {};
            requestCopy.PutRequest.Item = formatAttrValInput(item);
        }
    
        return requestCopy;
    }
    
    function formatRequestItems(requests) {
        var requestItems = {};
    
        for (var table in requests) {
            if (requests.hasOwnProperty(table)) {
                requestItems[table] = {};
    
                var request = requests[table];
                if (Array.isArray(request)) {
                    var writeRequests = [];
                    for (var wIndex in request) {
                        writeRequests.push(handleWriteRequest(request[wIndex]));
                    }
                    requestItems[table] = writeRequests;
                } else {
                    if (request.AttributesToGet) {
                        requestItems[table].AttributesToGet = request.AttributesToGet;
                    }
                    if (request.ConsistentRead) {
                        requestItems[table].ConsistentRead = request.ConsistentRead;
                    }
                    if (request.ProjectionExpression) {
                        requestItems[table].ProjectionExpression = request.ProjectionExpression;
                    }
                    if (request.ExpressionAttributeNames) {
                        requestItems[table].ExpressionAttributeNames = request.ExpressionAttributeNames;
                    }
                    if (request.Keys) {
                        var keys = [];
                        for (var gIndex in request.Keys) {
                            var key = request.Keys[gIndex];
                            keys.push(formatAttrValInput(key));
                        }
                        requestItems[table].Keys = keys;
                    }
                }
            }
        }
    
        return requestItems;
    }
    
    var inputMap = { "AttributeUpdates": formatUpdates,
                     "ExclusiveStartKey": formatAttrValInput,
                     "Expected": formatConditions,
                     "ExpressionAttributeValues": formatAttrValInput,
                     "Item": formatAttrValInput,
                     "Key": formatAttrValInput,
                     "KeyConditions": formatConditions,
                     "RequestItems": formatRequestItems,
                     "ScanFilter": formatConditions,
                     "QueryFilter": formatConditions};
    
    
    function formatAttrValOutput(item) {
        var attrList = {};
        for (var attribute in item) {
            var keys = Object.keys(item[attribute]);
            var key = keys[0];
            var value = item[attribute][key];
        
            value = t.formatWireType(key, value); 
            attrList[attribute] = value;
        }
    
        return attrList;
    }
    
    function formatItems(items) {
        for (var index in items) {
            items[index] = formatAttrValOutput(items[index]);
        }
        return items;
    }
    
    function handleCollectionKey(metrics) {
        var collectionKey = metrics.ItemCollectionKey;
        metrics.ItemCollectionKey = formatAttrValOutput(collectionKey);
        return metrics;
    }
    
    function handleBatchMetrics(metrics) {
        for (var table in metrics) {
            if (metrics.hasOwnProperty(table)) {
                var listOfKeys = metrics[table];
                for (var index in listOfKeys) {
                    listOfKeys[index] = handleCollectionKey(listOfKeys[index]);
                }
            }
        }
        return metrics;
    }
    
    function formatMetrics(metrics) {
        var collectionKey = metrics.ItemCollectionKey;
        if (collectionKey) {
            metrics = handleCollectionKey(metrics);
        } else {
            metrics = handleBatchMetrics(metrics);
        }
        return metrics;
    }
    
    function formatResponses(responses) {
        for (var table in responses) {
            if (responses.hasOwnProperty(table)) {
                var listOfItems = responses[table];
                for (var index in listOfItems) {
                    listOfItems[index] = formatAttrValOutput(listOfItems[index]);
                }
            }
        }
    
        return responses;
    }
    
    function formatUnprocessedItems(unprocessedItems) {
        for(var table in unprocessedItems) {
            if (unprocessedItems.hasOwnProperty(table)) {
                var tableInfo = unprocessedItems[table];
                for (var index in tableInfo) {
                    var request = tableInfo[index];
                    if (request.DeleteRequest) {
                        tableInfo[index].DeleteRequest.Key = formatAttrValOutput(request.DeleteRequest.Key);
                    } else {
                        tableInfo[index].PutRequest.Item = formatAttrValOutput(request.PutRequest.Item);
                    }
                }
            }
        }
        return unprocessedItems;
    }
    
    function formatUnprocessedKeys(unprocessedKeys) {
        for (var table in unprocessedKeys) {
            if (unprocessedKeys.hasOwnProperty(table)) {
                var tableInfo = unprocessedKeys[table];
                var listOfKeys = tableInfo.Keys;
                for (var index in listOfKeys) {
                    tableInfo.Keys[index] = formatAttrValOutput(listOfKeys[index]);
                }
            }
        }
    
        return unprocessedKeys;
    }
    
    /**
     * DynamoDBFormatter specifically for wrapping DynamoDB response objects.
     *
     * @function formatOutput
     * @memberOf DynamoDBFormatter#
     * @params {object} response Response object directly passed out by the service.
     * @returns {object} Wrapped up response object.
     */
    this.formatOutput = function(response) {
        var outputMap = {"Attributes": formatAttrValOutput,
                         "Item": formatAttrValOutput,
                         "Items": formatItems,
                         "ItemCollectionMetrics": formatMetrics,
                         "LastEvaluatedKey": formatAttrValOutput,
                         "Responses": formatResponses,
                         "UnprocessedKeys": formatUnprocessedKeys,
                         "UnprocessedItems": formatUnprocessedItems};
    
    
        var data = response.data;
        if (data) {
            for (var key in data) {
                if (data.hasOwnProperty(key)) {
                    var formatFunc = outputMap[key];
                    if (formatFunc) {
                        response.data[key] = formatFunc(data[key]);
                    } 
                }
            }
        }
    };
    
    /**
     * DynamoDBFormatter specifically for unwrapping DynamoDB request objects.
     *
     * @function formatInput
     * @memberOf DynamoDBFormatter#
     * @params {object} request Request object created by the service.
     * @return {object} Returns aws sdk version of the request.
     */
    this.formatInput = function (request) {
        var paramsCopy = {};
        var params = request.params;
    
        for (var key in params) {
            if (params.hasOwnProperty(key)) {
                var param = params[key];
                var formatFunc = inputMap[key];
                if (formatFunc) {
                    param = formatFunc(param);
                }
                paramsCopy[key] = param;
            }
        }
    
        request.params = paramsCopy;
    };
}
function DynamoDBFormatter ( ) { var datatypes = typeof ( window ) === "undefined" ? require ( "./datatypes" ) . DynamoDBDatatype : window . DynamoDBDatatype ; var t = new datatypes ( ) ; var EmptyConditionArray = "Need to pass in an array with 1 or more Condition Objects." ; var BadElementInConditionArray = "Only Condition objects are allowed as members of the array." ; var InvalidCondition = "Need to pass in a valid Condition Object." ; this . setCustomAgent = function ( request ) { var isBrowser = typeof ( window ) === "undefined" ; var prefix = isBrowser ? "" : "X-Amz-" ; var sdk = isBrowser ? "nodejs" : "js" ; var currentHeader = request . httpRequest . headers [ prefix + 'User-Agent' ] ; request . httpRequest . headers [ prefix + 'User-Agent' ] = currentHeader + "/document-sdk-" + sdk ; } function formatAttrValInput ( attrValueMap ) { var attributeValueMap = { } ; for ( var attr in attrValueMap ) { var value = attrValueMap [ attr ] ; attributeValueMap [ attr ] = t . formatDataType ( value ) ; } return attributeValueMap ; } function formatConditions ( conditions ) { if ( conditions . prototype && conditions . prototype . instanceOf === "DynamoDBConditionObject" ) { conditions = [ conditions ] ; } else { if ( Array . isArray ( conditions ) ) { if ( conditions . length === 0 ) { throw new Error ( EmptyConditionArray ) ; } for ( var index = 0 ; index < conditions . length ; index ++ ) { var condition = conditions [ index ] ; if ( ! ( condition . prototype ) || ! ( condition . prototype . instanceOf === "DynamoDBConditionObject" ) ) { throw new Error ( BadElementInConditionArray ) ; } } } else { throw new Error ( InvalidCondition ) ; } } var expected = { } ; for ( var index = 0 ; index < conditions . length ; index ++ ) { var condition = conditions [ index ] ; expected [ condition . key ] = condition . format ( ) ; } return expected ; } function formatUpdates ( updates ) { var attrUpdates = { } ; for ( var attr in updates ) { if ( updates . hasOwnProperty ( attr ) ) { var actionValue = { } ; var value = updates [ attr ] . Value ; var action = updates [ attr ] . Action ; actionValue . Action = action ; if ( value !== undefined ) { actionValue . Value = t . formatDataType ( value ) ; } attrUpdates [ attr ] = actionValue ; } } return attrUpdates ; } function handleWriteRequest ( request ) { var requestCopy = { } ; if ( request . DeleteRequest ) { var key = request . DeleteRequest . Key ; requestCopy . DeleteRequest = { } ; requestCopy . DeleteRequest . Key = formatAttrValInput ( key ) ; } else { var item = request . PutRequest . Item ; requestCopy . PutRequest = { } ; requestCopy . PutRequest . Item = formatAttrValInput ( item ) ; } return requestCopy ; } function formatRequestItems ( requests ) { var requestItems = { } ; for ( var table in requests ) { if ( requests . hasOwnProperty ( table ) ) { requestItems [ table ] = { } ; var request = requests [ table ] ; if ( Array . isArray ( request ) ) { var writeRequests = [ ] ; for ( var wIndex in request ) { writeRequests . push ( handleWriteRequest ( request [ wIndex ] ) ) ; } requestItems [ table ] = writeRequests ; } else { if ( request . AttributesToGet ) { requestItems [ table ] . AttributesToGet = request . AttributesToGet ; } if ( request . ConsistentRead ) { requestItems [ table ] . ConsistentRead = request . ConsistentRead ; } if ( request . ProjectionExpression ) { requestItems [ table ] . ProjectionExpression = request . ProjectionExpression ; } if ( request . ExpressionAttributeNames ) { requestItems [ table ] . ExpressionAttributeNames = request . ExpressionAttributeNames ; } if ( request . Keys ) { var keys = [ ] ; for ( var gIndex in request . Keys ) { var key = request . Keys [ gIndex ] ; keys . push ( formatAttrValInput ( key ) ) ; } requestItems [ table ] . Keys = keys ; } } } } return requestItems ; } var inputMap = { "AttributeUpdates" : formatUpdates , "ExclusiveStartKey" : formatAttrValInput , "Expected" : formatConditions , "ExpressionAttributeValues" : formatAttrValInput , "Item" : formatAttrValInput , "Key" : formatAttrValInput , "KeyConditions" : formatConditions , "RequestItems" : formatRequestItems , "ScanFilter" : formatConditions , "QueryFilter" : formatConditions } ; function formatAttrValOutput ( item ) { var attrList = { } ; for ( var attribute in item ) { var keys = Object . keys ( item [ attribute ] ) ; var key = keys [ 0 ] ; var value = item [ attribute ] [ key ] ; value = t . formatWireType ( key , value ) ; attrList [ attribute ] = value ; } return attrList ; } function formatItems ( items ) { for ( var index in items ) { items [ index ] = formatAttrValOutput ( items [ index ] ) ; } return items ; } function handleCollectionKey ( metrics ) { var collectionKey = metrics . ItemCollectionKey ; metrics . ItemCollectionKey = formatAttrValOutput ( collectionKey ) ; return metrics ; } function handleBatchMetrics ( metrics ) { for ( var table in metrics ) { if ( metrics . hasOwnProperty ( table ) ) { var listOfKeys = metrics [ table ] ; for ( var index in listOfKeys ) { listOfKeys [ index ] = handleCollectionKey ( listOfKeys [ index ] ) ; } } } return metrics ; } function formatMetrics ( metrics ) { var collectionKey = metrics . ItemCollectionKey ; if ( collectionKey ) { metrics = handleCollectionKey ( metrics ) ; } else { metrics = handleBatchMetrics ( metrics ) ; } return metrics ; } function formatResponses ( responses ) { for ( var table in responses ) { if ( responses . hasOwnProperty ( table ) ) { var listOfItems = responses [ table ] ; for ( var index in listOfItems ) { listOfItems [ index ] = formatAttrValOutput ( listOfItems [ index ] ) ; } } } return responses ; } function formatUnprocessedItems ( unprocessedItems ) { for ( var table in unprocessedItems ) { if ( unprocessedItems . hasOwnProperty ( table ) ) { var tableInfo = unprocessedItems [ table ] ; for ( var index in tableInfo ) { var request = tableInfo [ index ] ; if ( request . DeleteRequest ) { tableInfo [ index ] . DeleteRequest . Key = formatAttrValOutput ( request . DeleteRequest . Key ) ; } else { tableInfo [ index ] . PutRequest . Item = formatAttrValOutput ( request . PutRequest . Item ) ; } } } } return unprocessedItems ; } function formatUnprocessedKeys ( unprocessedKeys ) { for ( var table in unprocessedKeys ) { if ( unprocessedKeys . hasOwnProperty ( table ) ) { var tableInfo = unprocessedKeys [ table ] ; var listOfKeys = tableInfo . Keys ; for ( var index in listOfKeys ) { tableInfo . Keys [ index ] = formatAttrValOutput ( listOfKeys [ index ] ) ; } } } return unprocessedKeys ; } /**
     * DynamoDBFormatter specifically for wrapping DynamoDB response objects.
     *
     * @function formatOutput
     * @memberOf DynamoDBFormatter#
     * @params {object} response Response object directly passed out by the service.
     * @returns {object} Wrapped up response object.
     */ this . formatOutput = function ( response ) { var outputMap = { "Attributes" : formatAttrValOutput , "Item" : formatAttrValOutput , "Items" : formatItems , "ItemCollectionMetrics" : formatMetrics , "LastEvaluatedKey" : formatAttrValOutput , "Responses" : formatResponses , "UnprocessedKeys" : formatUnprocessedKeys , "UnprocessedItems" : formatUnprocessedItems } ; var data = response . data ; if ( data ) { for ( var key in data ) { if ( data . hasOwnProperty ( key ) ) { var formatFunc = outputMap [ key ] ; if ( formatFunc ) { response . data [ key ] = formatFunc ( data [ key ] ) ; } } } } } ; /**
     * DynamoDBFormatter specifically for unwrapping DynamoDB request objects.
     *
     * @function formatInput
     * @memberOf DynamoDBFormatter#
     * @params {object} request Request object created by the service.
     * @return {object} Returns aws sdk version of the request.
     */ this . formatInput = function ( request ) { var paramsCopy = { } ; var params = request . params ; for ( var key in params ) { if ( params . hasOwnProperty ( key ) ) { var param = params [ key ] ; var formatFunc = inputMap [ key ] ; if ( formatFunc ) { param = formatFunc ( param ) ; } paramsCopy [ key ] = param ; } } request . params = paramsCopy ; } ; }
Create an instance of the DynamoDBFormatter.
@constructor
@return {DynamoDBFormatter} A Formatter object that provides methods for formatting DynamoDB requests and responses.
Create an instance of the DynamoDBFormatter .