serverless-application-model | AWS Serverless Application Model ( AWS SAM | Serverless library
kandi X-RAY | serverless-application-model Summary
kandi X-RAY | serverless-application-model Summary
This GitHub repository contains the SAM Specification, the Python code that translates SAM templates into AWS CloudFormation stacks and lots of example applications. In the words of SAM developers:.
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Top functions reviewed by kandi - BETA
- Process API events
- Returns the API resource type name
- Get the REST API ID from the event properties
- Add API to the Swagger definition
- Constructs a Lambda function
- Get runtime attribute
- Constructs a Lambda Permission
- Gets the policy statements
- Validate that the SecretKeyId is of a string
- Transform a SAM template into a CloudFormation template
- Recursive constructor
- Constructs an S3Location object
- Retry decorator
- Constructs the swagger definition
- Decorator to measure the execution time of a function
- Generate the swagger definition
- Convert this transform into a CloudFormation
- Creates a ConnectorResourceReferenceReferenceReference from obj
- Initialize the resource policies
- Generate OpenAPI key
- Initialize resource before transformation
- Serializes this event
- Returns a Lambda Permission resource
- Validate input parameters
- Determine the link to the given resources
- Initialize the SAM template
serverless-application-model Key Features
serverless-application-model Examples and Code Snippets
Lines of Code : 55License : Non-SPDX (BSD 2-Clause "Simplified" License)
Copy# Converted from api_backend located at:
# https://github.com/awslabs/serverless-application-model/blob/dbc54b5d0cd31bf5cebd16d765b74aee9eb34641/examples/2016-10-31/api_backend/template.yaml
from troposphere import Ref, Template
from troposphere.aws # Converted from s3_processor located at:
# https://github.com/awslabs/serverless-application-model/blob/dbc54b5d0cd31bf5cebd16d765b74aee9eb34641/examples/2016-10-31/s3_processor/template.yaml
from troposphere import Ref, Template
from troposphere.s # Converted from s3_processor located at:
# https://github.com/awslabs/serverless-application-model/blob/dbc54b5d0cd31bf5cebd16d765b74aee9eb34641/examples/2016-10-31/s3_processor/template.yaml
from troposphere import Template
from troposphere.server Community Discussions
Trending Discussions on serverless-application-model
QUESTION
I have created a Lambda function using AWS SAM CLI which is deployed as a container image. Problem is the requirements are downloaded every time I make a small change in the code(app.py) and run sam build. The reason can be undestood from the Dockerfile below.
Dockerfile
...ANSWER
Answered 2022-Mar-27 at 16:53With the way docker caching works, everything after your COPY statements is invalidated in cache (assuming changing). The way dependencies are often retained in cache is by only adding what is necessary to install dependencies, installing them, and then only adding your service code once dependencies are installed. In the example below, the pip install will only run more than once if requirements.txt changes.
QUESTION
I have the following YAML file
template.yaml
...ANSWER
Answered 2022-Mar-02 at 19:17Comments (and blank lines are treated as comments), in ruamel.yaml are currently (0.17) associated with a node that comes before it. In this case of a mapping comment occuring in a mapping is associated with the key.
So what you need to do is reassociate the comment with the new key. Doing
QUESTION
I am working with a simple AWS Lambda function :
...ANSWER
Answered 2022-Jan-23 at 06:44Lambda standalone from console
The event that you get in your lambda function from API, and the one used when you run the function from the console are different. The event from api passed to your function will have a fixed known format. But when you run the function from console, you are passing the event in the incorrect format, thus it all breaks.
You have to ensure that your event structure used when you run the code in console matches the event structure from the API format.
QUESTION
I built a simple HelloWorld API using a lambda function and APIGateway. I'm using Cloudformation.
The lambda function runs fine when I run it using aws lambda invoke.
The API runs locally using sam local start-api.
But when I deploy it using sam deploy (after using package of course), the API returns status code 500.
This is the log that I get when I try to test it.
...ANSWER
Answered 2022-Feb-14 at 23:52Lambda proxy integrations should only use POST, not GET. So it should be:
QUESTION
I have an AWS SAM template, which creates lambda function and post method in API Gateway. By default, it uses Lambda Proxy integration and it is working fine when I am testing through the PostMan tool but when I am using the API gateway URL with my sandbox app, it is displaying the following error.
...ANSWER
Answered 2022-Jan-11 at 17:16Configuration is not proper for API creation in API-Gateway in the AWS SAM template. because SAM deployment uses lambda proxy integration by default that's why in method response, there are few values required which can not be set automatically using the above configuration. So I use open API specification where I defined Rest API configuration and it is working fine without any manual intervention after deployment.
Following configuration is fine.
QUESTION
I followed an AWS tutorial for setting up Lambda + API Gateway using SAM Template. But the event defined under lambda template creates a Proxy integration. I followed this tutorial because I wanted to set up similar for one of my projects. I need Non-proxy integration for that specific use case. Because I have to return xml format to the client and this can be only done by modifying the Integration Response. But in proxy APIs integration response cannot be modified. I searched a lot but couldn't find an answer. For now the template.yaml looks like this
...ANSWER
Answered 2021-Sep-24 at 10:23What you seek is the "Mapping template" functionality of API Gateway. Unfortunately, there is no direct way to do it in the AWS SAM.
But there is a way you can achieve this by leveraging the Open API support inside the AWS SAM which has a subset of API Gateway extensions. (x-amazon-API gateway-integration.requestTemplates object)
QUESTION
In this documentation:
there's this snippet of SAM template:
...ANSWER
Answered 2021-Dec-11 at 15:27This code is just a snippet from a CloudFormation template. CognitoUserPoolName and CognitoUserPoolClientName are strings which should be specified by you. One way of doing this is by passing them as parameters:
QUESTION
I want use graviton with my AWS Lambda (Python). So I read AWS official docs: https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-resource-function.html
...ANSWER
Answered 2021-Oct-20 at 14:06AWS Lambda on graviton need AWS SAM CLI version greater than or equal to 1.33.0
QUESTION
edit: Turns out the solution is in the docs. I had bog standard normal 'sam' installed but I needed what they call the 'public preview version' AKA 'sam-beta-cdk'. With this installed the API can be started locally with sam-betacdk start-api and works well. While I appreciate the answers which suggest that development should be done using purely TDD I feel there is also value in this more interactive, manual mode as it permits quicker exploration of the problem space.
I'm trying to build my first app with CDK + Typescript using API Gateway, Lambdas and DynamoDB. I have built a couple of Lambdas and deployed them and they work fine live on the web. However I don't want a minute long deploy cycle and various associated AWS costs as part of my workflow. What I want is to be able to test my API locally.
I have struggled to find docs on how to do this. Amazon seem to recommend using the SAM CLI here so that is what I've been trying.
The docs claim running sam local xyz runs cdk synth to make a "could assembly" in ./aws-sam/build but I see no evidence of this. Instead what I get is a complaint that sam could not find a 'template.yml'. So I manually run cdk synth > template.yml which creates one in the root folder. Then I run sam local start-api and it seems happy to start up.
Then I try and hit my test lambda using CURL: curl 'http://127.0.0.1:3000/test' I get {"message":"Internal server error"} and a huge ugly stack trace in the console that is running sam local start-api
The lambda is this...
...ANSWER
Answered 2021-Sep-15 at 15:15You must be doing something wrong with your file directory. Where is your index.js located? If you generate the template.json, is the directory correct? Also in what directory do you execute the Sam local command?
The thing with testing your serverless application is you don't have to test your full application. You need to count on AWS that API gateway, dynamodb and lambda is perfectly working. The only thing you need to test is the logic you implemented.
In here you make sure your function prints out something and returns a 200. That's all you have to do. Look into 'jest' for testing js.
If you want to test cdk you should into https://docs.aws.amazon.com/cdk/latest/guide/testing.html
Also "running Aws locally" is not good practice. it's never the same as how it's running in real life aka the cloud. You use plugins for this, tools for that... Local is not the same as in the cloud.
If you have any more questions, feel free to ask.
QUESTION
I am trying to integrate a custom domain to the HTTP API I am developing with AWS API Gateway and AWS Lambda. I m using the AWS SAM template. There I have a root stack and nested stacks.
For this question I will use a code piece with a one nested stack. There, this is how I want the URL end points to be
- root stack - api.example.com
- nested stack - api.example.com/nested
Below is my code
Root stack
...ANSWER
Answered 2021-Sep-04 at 09:18Indeed SAM always creates the domain when you specify it's name there. It stated in the docs as well.
To get around this, you can omit the whole domain configuration in the AWS::Serverless::HttpApi resource and write the resources created by SAM yourself. So add a section with
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install serverless-application-model
Install SAM CLI
Build & Deploy a "Hello World" Web App
Install AWS Toolkit to use SAM with your favorite IDEs.
Extract text from images and store in a database using Amazon S3 and Amazon Rekognition services.
Detect when records are added to a database using Amazon DynamoDB database and asynchronous stream processing.
CLI Commands
SAM Template Specification
Policy Templates
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