amazon-dynamodb

问题 how can we update dynamodb table based on index(not based on primary has and range key). I have a index created by name key_id-index and hash is asset_id and range is hit_id . i want to update the table based on key_id-index because i wouldn't know those while updating. var paramsu = { TableName: 'asset', //IndexName: 'key_id-index', Key: { // The primary key of the item (a map of attribute name to AttributeValue) asset_id: { S: 'a' }, hit_id: { S: 'h' } // more attributes... },

问题 how can we update dynamodb table based on index(not based on primary has and range key). I have a index created by name key_id-index and hash is asset_id and range is hit_id . i want to update the table based on key_id-index because i wouldn't know those while updating. var paramsu = { TableName: 'asset', //IndexName: 'key_id-index', Key: { // The primary key of the item (a map of attribute name to AttributeValue) asset_id: { S: 'a' }, hit_id: { S: 'h' } // more attributes... },

问题 I have ~/.aws/credentials and config files and my code is below clientConfiguration.setProxyHost("MYPROXY"); clientConfiguration.setProxyPort(port); clientConfiguration.setProxyUsername("username"); clientConfiguration.setProxyPassword("pw"); clientConfiguration.setPreemptiveBasicProxyAuth(false); AmazonDynamoDBClient client = new AmazonDynamoDBClient(new ProfileCredentialsProvider("MY_PROFILE"),clientConfiguration); //client.withRegion(Regions.US_EAST_1); DynamoDBMapper mapper = new

问题 In my Android app I use Amazon DynamoDB. I created 10 tables with Read capacity 10 and Write capacity 5. Today I received an email from Amazon. It costs me 11.36$. I don't understand the meaning of free tier. Here is what I read from Amazon: DynamoDB customers get 25 GB of free storage, as well as up to 25 write capacity units and 25 read capacity units of ongoing throughput capacity (enough throughput to handle up to 200 million requests per month) and 2.5 million read requests from DynamoDB

问题 In my Android app I use Amazon DynamoDB. I created 10 tables with Read capacity 10 and Write capacity 5. Today I received an email from Amazon. It costs me 11.36$. I don't understand the meaning of free tier. Here is what I read from Amazon: DynamoDB customers get 25 GB of free storage, as well as up to 25 write capacity units and 25 read capacity units of ongoing throughput capacity (enough throughput to handle up to 200 million requests per month) and 2.5 million read requests from DynamoDB

问题 I have ~/.aws/credentials and config files and my code is below clientConfiguration.setProxyHost("MYPROXY"); clientConfiguration.setProxyPort(port); clientConfiguration.setProxyUsername("username"); clientConfiguration.setProxyPassword("pw"); clientConfiguration.setPreemptiveBasicProxyAuth(false); AmazonDynamoDBClient client = new AmazonDynamoDBClient(new ProfileCredentialsProvider("MY_PROFILE"),clientConfiguration); //client.withRegion(Regions.US_EAST_1); DynamoDBMapper mapper = new

问题 I have ~/.aws/credentials and config files and my code is below clientConfiguration.setProxyHost("MYPROXY"); clientConfiguration.setProxyPort(port); clientConfiguration.setProxyUsername("username"); clientConfiguration.setProxyPassword("pw"); clientConfiguration.setPreemptiveBasicProxyAuth(false); AmazonDynamoDBClient client = new AmazonDynamoDBClient(new ProfileCredentialsProvider("MY_PROFILE"),clientConfiguration); //client.withRegion(Regions.US_EAST_1); DynamoDBMapper mapper = new

问题 In my Android app I use Amazon DynamoDB. I created 10 tables with Read capacity 10 and Write capacity 5. Today I received an email from Amazon. It costs me 11.36$. I don't understand the meaning of free tier. Here is what I read from Amazon: DynamoDB customers get 25 GB of free storage, as well as up to 25 write capacity units and 25 read capacity units of ongoing throughput capacity (enough throughput to handle up to 200 million requests per month) and 2.5 million read requests from DynamoDB

问题 I have one Cognito User Pool with a custom attribute organisation_id. One Organisation may have multiple users. There can be multiple organisations. Another Dynamodb table is used to maintain Categories which has _id and organisation_id as partition key. Categories can be owned by Organisation so that users belong to that particular Organisation perform some operation in those categories only. Now, how can I create the IAM policy so that it takes the organisation_id instead of sub/user_id as

问题 How to Query array of objects(workingDays) key containing only "Tue" in dynamoDb with Scan Operation,I have queried using filter Expression but i am getting no results. var queryData = { TableName: tableName, FilterExpression: "contains (workingDays, :dayVal)", ExpressionAttributeValues: { ":dayVal": { S:"Tue" } } }; console.log("getParams ==>", queryData) dynamodb.scan(queryData, function (err, details) { if (err) { console.log(err, err.stack); // an error occurred callback(err, null) } else