Amazon DocumentDB (with MongoDB compatibility)’s support for a flexible document model and a fully managed service has relieved us from handling rigid schema and enabled us to operate mission-critical workloads at scale with ease ” ” With ever increasing data volumes, and growing demand for schema flexibility, our log collection service faced challenges with managing data on a traditional relational database. World’s largest consumer electronics maker “ Samsung Electronics” VP says that : In this blog, we will discuss AWS DocumentDB followed by the implementation to connect to Amazon DocumentDB cluster from AWS Cloud9 environment with a mongo shell and run a few queries.
AMAZON SERVICES JSON QUERY HOW TO
We've to extract the data from the response received from the DB as mentioned in step-4.Īnd that's all! Now you know how to store data in Dynamo DB and retrieve data based on various conditions in mule 4.NoSQL databases are a great choice for many modern applications such as mobile, web, and gaming that require flexible, scalable, high-performance, and highly functional databases to provide great user experiences. Similarly, we can query based on any other field on the table. We are retrieving data based on 'Email' which is a sort key. Also, we've to provide a global secondary index name in the config as below:
We've to provide key variables in the Query Parameters section and provide filter conditions in key condition expression. Here we've created a GSI 'Email-index' to retrieve data based on sort-key 'Email', keeping 'Email' as partition key for this GSI.In order to query based on a field other than partition key, we've to first create a global secondary index on that table in Dynamo DB.Step 5: Query Data From Db Based on Sort Key or Any Other Attribute of the Table We are retrieving based on 'EmployeeId' which is a partition key. We've to provide key variables in the Query Parameters section and provide filter conditions in key condition expressions.
If we have to retrieve data based on partition key or sort key only then we've to query it from DB based on these keys. Step 4: Query Data from DB Based on the Partition Key We've to extract the data from the response received from the DB as below: If partition key and sort key exists for a table in Dynamo DB then we have to provide both keys in order to retrieve data from Dynamo DB if we are using the Get-Item connector to retrieve the data. Key variable - set the key to retrieve data from DB: Step 3: Retrieve Data From DB Using the Get-Item Connector. Once data is inserted, this is how it looks like on the AWS Dynamo DB console: Make sure that the test connection is successful. Request JSON payload has attributes with String and Boolean datatype, also it contains an array. Step 2: Convert Input Data to DynamoDB JSON Format and Insert Data into DB Using Put Item Connector Click on create table and create a new table - 'Employees' with partition key as 'EmployeeId' and sort key as 'Email'.Log in to AWS Console and go to the DynamoDB section.Below are the steps in detail: Step 1: Create Dynamo DB Table We are further using the Put Item, Get-Item, and Query connector. We are using an HTTP listener to invoke functionalities like Inserting and retrieving messages from the DB. Query data from DB based on sort key or any other attribute of the table.Query data from DB based on the partition key.Retrieve data from DB using a get-item connector.Convert input data to DynamoDB JSON format and insert data into DB using a put-item connector.Create DynamoDB Table - Employees with partition key as 'EmployeeId' and sort key as 'Email'.AWS Identity and Access Management (IAM) credentials including access and secret keys.An AWS account with accessibility to the Amazon DynamoDB.To be able to use the Amazon DynamoDB connector, we need to have the following: The role of Amazon DynamoDB Connector is to ensure interaction with Amazon DynamoDB in order to store and retrieve data from Dynamo DB.
It enables fast performance and seamless scalability. Anypoint Connector for Amazon DynamoDB (Amazon DynamoDB Connector), as the name goes, provides connectivity to the Amazon DynamoDB API.Īmazon DynamoDB is a fully managed NoSQL database service.
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