What does the n8n AWS Lambda node do?

One operation: Invoke a function, with the function picked from a list, a JSON payload, a qualifier (version or alias) and an invocation type: wait for results or event (fire and forget).

Where is Lambda in Pipedream?

Inside the shared AWS app (aws): Lambda - Invoke Function and Lambda - Create Function. There is no Lambda-only app.

Can n8n create or deploy Lambda functions?

Not with the Lambda node. Lambda - Create Function needs an HTTP Request to the Lambda API with the AWS credential, or better, your normal deployment pipeline.

Do Lambda steps convert automatically?

No. They arrive as placeholders with their props (region, function name, payload), and the report lists one AWS credential for the workflow.

Pipedream AWS Lambda steps in n8n

Updated 2026-10-21 · 3 min read · n8n: AWS Lambda (Native n8n node)

Teams that use Pipedream next to AWS often keep heavy logic in Lambda: a workflow receives a webhook, calls a function for the work Pipedream's step limits could not handle, and posts the result. n8n has a native AWS Lambda node that invokes functions; the rest of the AWS app maps to sibling nodes (S3, SQS, SNS).

The n8n side

AWS Lambda node (n8n-nodes-base.awsLambda), operation Invoke:

Function: chosen from the list of functions in the credential's region.
Qualifier: version or alias (default $LATEST).
Invocation Type: Wait for Results (synchronous, RequestResponse) or Continue Workflow (asynchronous, Event).
JSON Input: the payload.

On synchronous calls the function's response arrives as { result: … } on the item. There is no Lambda trigger node; to start an n8n workflow from Lambda, have the function POST to an n8n Webhook.

What maps where

Pipedream (app `aws`)	In n8n	Status
Lambda - Invoke Function	AWS Lambda → Invoke	manual
Lambda - Create Function	HTTP Request to the Lambda API, or CI/CD	manual
SQS - Send Message	AWS SQS → Send Message	manual
SNS - Send Message	AWS SNS → Publish	manual
S3 - Upload Files	AWS S3 → File → Upload	manual
DynamoDB - Put Item	AWS DynamoDB → Item → Create or Update	manual
New S3 File, New SNS Messages (sources)	AWS SNS Trigger; for S3, an S3 event notification to SNS/SQS or to a Webhook (n8n has no S3 trigger)	manual

AWS steps are not in the converter's mapped list. Each step arrives as a placeholder that keeps its props (region, function name, payload) in a comment; the report lists one AWS credential.

AWS Lambda credentials in n8n

AWS (IAM): Region, Access Key ID, Secret Access Key, optional session token for temporary credentials, and custom endpoints (for example a VPC endpoint).
AWS (Assume Role): n8n gets temporary credentials through STS for a role you name; better when the n8n host already has a base identity.

The IAM policy needs lambda:InvokeFunction on the function and lambda:ListFunctions so the node can list functions.

Typical migration: PDF processing

Pipedream: HTTP trigger → Lambda - Invoke Function (pdf-extract, payload with S3 key) → Slack Send Message with the result. n8n: Webhook → AWS Lambda → Invoke (pdf-extract, Wait for Results, JSON Input {"key": "{{ $json.body.key }}"}) → Slack → Message → Send.

AWS Lambda migration pitfalls

Payload size. Synchronous invocations accept up to 6 MB request and response; asynchronous ones much less (check the current AWS quota). Pass S3 keys, not files.
Timeouts. A Lambda can run up to 900 seconds. With Wait for Results, the n8n execution waits that long; use async plus a callback webhook for long jobs.
Errors. If the function returns an error (errorMessage), the node fails. To branch on errors instead of stopping, turn on Continue On Fail and check the output.
Region. The credential's region decides which functions are listed; for functions in another region, use a second credential set to that region.

How to move your Lambda workflows

Export from Pipedream.
Upload on /convert; the free report lists every AWS step and its props.
Get the n8n JSON: 1 workflow is free; full export: $3 per workflow, $19 minimum — coming soon.

Code steps using @aws-sdk/client-lambda can be checked in the code step checker. Related: AWS SQS, AWS S3, OpenAI.

FAQ

What does the n8n AWS Lambda node do?: One operation: Invoke a function, with the function picked from a list, a JSON payload, a qualifier (version or alias) and an invocation type: wait for results or event (fire and forget).
Where is Lambda in Pipedream?: Inside the shared AWS app (aws): Lambda - Invoke Function and Lambda - Create Function. There is no Lambda-only app.
Can n8n create or deploy Lambda functions?: Not with the Lambda node. Lambda - Create Function needs an HTTP Request to the Lambda API with the AWS credential, or better, your normal deployment pipeline.
Do Lambda steps convert automatically?: No. They arrive as placeholders with their props (region, function name, payload), and the report lists one AWS credential for the workflow.