# Invoke an AWS Lambda Function

Source: https://openflow.run/ja/templates/invoke-an-aws-lambda-function/
Content language: en
Template revision: 5b4ebb0d2fbb329baf98dfe4b5d5ae6331e19984

開発

Invoke a Lambda function synchronously and return its result.

[Open Flow で使用](https://console.openflow.run/flows?importUrl=https%3A%2F%2Fraw.githubusercontent.com%2Foomol-lab%2Fawesome-workflow-templates%2F5b4ebb0d2fbb329baf98dfe4b5d5ae6331e19984%2Fworkflows%2Finvoke-an-aws-lambda-function%2Ftemplates%2Finvoke-an-aws-lambda-function.openflow.json)

*   [Open Flow JSON](https://raw.githubusercontent.com/oomol-lab/awesome-workflow-templates/5b4ebb0d2fbb329baf98dfe4b5d5ae6331e19984/workflows/invoke-an-aws-lambda-function/templates/invoke-an-aws-lambda-function.openflow.json)
*   [n8n JSON](https://raw.githubusercontent.com/oomol-lab/awesome-workflow-templates/5b4ebb0d2fbb329baf98dfe4b5d5ae6331e19984/workflows/invoke-an-aws-lambda-function/templates/invoke-an-aws-lambda-function.n8n.json)

![Open Flow の Invoke an AWS Lambda Function ワークフロー](https://openflow.run/_astro/preview-light.DOw1qO49_oM59E.webp)

Invoke a Lambda function synchronously and return its result.

## Setup and use

Choose a Lambda function name or ARN and its AWS region. In Open Flow, set both in **Sign the Lambda request**, bind access key ID and secret access key to secret Variables, and grant `lambda:InvokeFunction`. With temporary credentials, bind the same session token secret Variable to **Session Token** in the signing node and **X-Amz-Security-Token** in **Invoke Lambda**. Leave both unset for long-lived credentials. In n8n, configure the function and AWS credential in **AWS Lambda**. Run manually.

## Behavior

The workflow invokes `$LATEST` synchronously with an empty payload and returns the response. The example region is `ap-south-1`; use the function’s actual region. Invocation and function errors stop the run. An uncertain invocation may already have executed; check the function’s effects before retrying. Lambda responses are held in execution history.

Inspiration & credits

## Changes to the source

*   Replace the original account-specific function ARN with configuration. Open Flow signs the Lambda API request; n8n retains the native AWS Lambda node.

Adapted from [Invoke an AWS Lambda function](https://github.com/Zie619/n8n-workflows/blob/ae8cf6dc5b873cbb4f74587aa9180ed3a9f70682/workflows/Manual/0985_Manual_Awslambda_Automate_Triggered.json) in [Zie619/n8n-workflows](https://github.com/Zie619/n8n-workflows). The source export does not identify a separate template author or license.

The collection’s [MIT notice](https://github.com/Zie619/n8n-workflows/blob/94007c1445d9258a7da116646b79473e7c7c3282/LICENSE) is pinned at a later revision. This is the collection notice at that revision; it does not establish a separate original template author’s license. Our changes are listed above; see [repository licensing](https://github.com/oomol-lab/awesome-workflow-templates/blob/5b4ebb0d2fbb329baf98dfe4b5d5ae6331e19984/README.md#licensing).

> MIT License
> 
> Copyright (c) 2025 Zie619
> 
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
> 
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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> THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

## 必要な設定

*   AWS credentials with lambda:InvokeFunction access
*   Lambda function name or ARN and region

*   aws
*   lambda
*   serverless

[GitHub で見る](https://github.com/oomol-lab/awesome-workflow-templates/blob/5b4ebb0d2fbb329baf98dfe4b5d5ae6331e19984/workflows/invoke-an-aws-lambda-function/README.md)