Comment by Chris Zirkel on "Trigger AppSync Subscriptions with EventBridge targets"

CommentTrigger AppSync Subscriptions with EventBridge targets

Chris Zirkel

Mar 22, 2022

Hi Michael!

I'm using Amplify on the frontend and it provides an API class to make Cognito authenticated requests. What is the recommended approach to make requests in a Node.js Lambda function with IAM? Amplify refers to this: docs.amplify.aws/lib/graphqlapi/graphql-from-node…

That looks quite similar to your post. I was wondering if I also could use the official AWS AppSync SDK?

Michael Liendo

Fullstack Cloud with TypeScript, React, and AWS CDK

Mar 22, 2022

Hey! Yea, Totally doable without much work.

I have a blog post up that shows the code to do so, checkout the “Automatically Creating Users” section here: blog.focusotter.com/combining-nextjs-aws-amplify-…

Let me know if that helps and thanks for checking out the post!

Michael Liendo it seems like the URL in my first comment got removed, so it was probably not 100% clear what I meant.

The AWS documentation for clients accessing GraphQL from the backend (like Lambdas) says:

To connect to your AWS AppSync GraphQL endpoints from your backend applications (such as AWS Lambda function or Amazon EC2 instances), we recommend using an HTTP client and signing your requests using IAM by following the Authorization and authentication guide. For more information on working with GraphQL in the backend, see GraphQL from NodeJS.

Then it links to the Amplify documentation about Signing a request from Lambda

I had some issues accessing my GraphQL API via HTTP and IAM and was wondering if there are other ways to access it from Lambda, for example the official AWS.AppSync SDK?

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