how do you query a dynamodb table example sdk javascript

HOW DO YOU QUERY A DYNAMODB TABLE EXAMPLE SDK JAVASCRIPT HOW TO
HOW DO YOU QUERY A DYNAMODB TABLE EXAMPLE SDK JAVASCRIPT PLUS

Since we all should be doing our best to use async/await functions, and to use functions that return Promise objects, having an SDK lacking support for Promises is inconvenient.

HOW DO YOU QUERY A DYNAMODB TABLE EXAMPLE SDK JAVASCRIPT HOW TO

So far as I could find, none of them discuss how to get Promise objects out of an SDK call.

AWSJavaScriptSDK latest AWS DynamoDB DocumentClient.html.

AWSJavaScriptSDK latest AWS DynamoDB.html.

sdk-for-javascript v2 developer-guide/welcome.html.

There are three places this SDK is documented: Supposedly, AWS SDK for JavaScript does not support Promises For example, to get an item from a DynamoDb table, this example below will show the differences in constructing the param object between the Document Client and the DynamoDb direct. Namely - how to get a Promise out of AWS SDK for JavaScript method calls. Basically, you can use Javascript objects directly and pass them to DynamoDB methods, and the Document Client will map the Javascript types to the DynamoDB tables. That's pretty impressive, but it is also a tangent from what we're here to do.

HOW DO YOU QUERY A DYNAMODB TABLE EXAMPLE SDK JAVASCRIPT PLUS

Plus did some other futzing around doing unrelated stuff on Facebook/Quora/YouTube. And, by 8:30 PM this blog post was written. In other words - in about 2 hours I did rewrote one application, and then wrote a whole new Serverless Framework application. With DynamoDB, it seems I need all the SDK nonsense just to connect, much less get data that is human. In PHP, it's a simple function to connect to a MySQL database and run a query and punch it down into an array. Why await new Promise? Why not just query DynamoDB using promises in the first place instead of callbacks? Good article, but the example snippets could have been better.īy 7:40 PM I'd read the response, had an initial response ('because the SDK doesn't support that'), then thought it would be better to see if it does support it, found the announcement that the AWS SDK for Node.js does support Promise's, digested in my mind how to implement the support in my application, updated the application for the article, tested that implementation, updated the article, then read a few posts on Quora, watched a could YouTube videos, then thought I might write this blog post, wrote a quick sample application, and debugged that application. I'm not trying to use MySQL to call DynamoDB, I was using that as an example as to my expectations for how I would call DynamoDB.

In this case at 5:30 PM I received email notification that a reader had replied to the newly posted article on the Sourcerer blog saying: For a simple example, see Getting started with using Node.js and the Serverless framework on AWS Lambda With the Serverless Framework it's possible to quickly implement Node.js Lambda functions using any AWS service.

How do you query a dynamodb table example sdk javascript