aws-lambda-go | Libraries , samples and tools to help Go developers | Serverless library

by aws Go Version: v1.41.0 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | aws-lambda-go Summary

aws-lambda-go is a Go library typically used in Serverless applications. aws-lambda-go has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Libraries, samples, and tools to help Go developers develop AWS Lambda functions. To learn more about writing AWS Lambda functions in Go, go to the official documentation.

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Security

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Support

aws-lambda-go has a medium active ecosystem.

It has 3318 star(s) with 528 fork(s). There are 60 watchers for this library.

There were 1 major release(s) in the last 12 months.

There are 84 open issues and 142 have been closed. On average issues are closed in 342 days. There are 7 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of aws-lambda-go is v1.41.0

Quality

aws-lambda-go has no bugs reported.

Security

aws-lambda-go has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

aws-lambda-go is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

aws-lambda-go releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

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aws-lambda-go Key Features

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aws-lambda-go Examples and Code Snippets

No Code Snippets are available at this moment for aws-lambda-go.

Community Discussions

Trending Discussions on aws-lambda-go

func init() vs func main() for initalizing global state in AWS Lambda handlers

json: invalid use of string struct tag

Operation not permitted when executing an arbitrary binary

AWS API Gateway HTTP API how to pass string query params?

AWS Lambda with aws-sdk-go-v2

Unit tests panic when returning dereferenced struct attribute rather than struct

AWS SDK Go Lambda Unit Testing

Invoking an AWS lambda function through step functions in Golang

AWS Lambda GO PathError (Windows 10)

AWS Go Lambda: If/else Issue

QUESTION

func init() vs func main() for initalizing global state in AWS Lambda handlers

Asked 2021-Jun-03 at 16:35

Looking at the Using global state section in the official AWS Lambda function handler in Go doc https://docs.aws.amazon.com/lambda/latest/dg/golang-handler.html

suggests to initialise all global state in func init() i.e. Any package level vars which we want to share across multiple lambda invocations go here.
And my understanding is that this initialisation is done once per lambda container start (i.e cold start).

My question is, is it possible to do the same using func main() instead of func init().
Using func init() basically makes my handler function (func LambdaHandler) non unit-testable due to side-effects from func init() running.
Moving the func init() code to func main() seems to solve this easily.
Are there any side effects to using func main() vs func init()

Code Example

Using func init()

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ANSWER

Answered 2021-Jun-03 at 16:35

I would propose the following (which we use successful in a lot of Go Lambdas).

main.go

Source https://stackoverflow.com/questions/67824489

QUESTION

json: invalid use of string struct tag

Asked 2021-Jun-03 at 15:20

I'm trying to write simple POST serverless Go AWS lambda function.

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ANSWER

Answered 2021-Jun-03 at 15:20

As the error says, your use of ,string is invalid for your JSON input. Remove it:

Source https://stackoverflow.com/questions/67824066

QUESTION

Operation not permitted when executing an arbitrary binary

Asked 2021-May-14 at 10:57

In Running arbitrary binary, AWS explains:

Including your own executables is easy; just package them in the ZIP file you upload, and then reference them (including the relative path within the ZIP file you created) when you call them from Node.js or from other processes that you’ve previously started. Ensure that you include the following at the start of your function code: process.env[‘PATH’] = process.env[‘PATH’] + ‘:’ + process.env[‘LAMBDA_TASK_ROOT’] You can use all the usual forms of interprocess communication as well as files in /tmp to communicate with any of the processes you create.

I would like to use the Go Terraform library tfexec in my code, but I consistently get Permission denied.

Code in main/tf:

...

ANSWER

Answered 2021-May-08 at 19:18

You've downloaded the Terraform binary as a zip file, so it isn't in a form that can be executed.

You'll need to decompress it before repackaging it with zip.

Replace:

Source https://stackoverflow.com/questions/67419576

QUESTION

AWS API Gateway HTTP API how to pass string query params?

Asked 2021-Apr-07 at 01:33

So I am making an app and need AWS API Gateway. I want to use HTTP API instead of REST API. My code looks like this

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ANSWER

Answered 2021-Apr-06 at 21:21

If you are deploying your lambdas and api-gateway with serverless framework you can do something like this:

Source https://stackoverflow.com/questions/66975761

QUESTION

AWS Lambda with aws-sdk-go-v2

Asked 2021-Jan-19 at 17:43

I migrated aws-sdk-go-v2 to v0.31.0 from v0.25.0.

My code is a bit of a Frankenstein's Monster and I want to fully migrate to this version but I can't find the current location/approach for some features.

Specifically:

I had:

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ANSWER

Answered 2021-Jan-19 at 17:43

Are you importing both github.com/aws/aws-lambda-go/lambda and github.com/aws/aws-sdk-go-v2/service/lambda? If so, try importing the former with:

runtime "github.com/aws/aws-lambda-go/lambda"

And then call runtime.Start(HandleRequest)

As for handling events, see the samples in https://github.com/aws/aws-lambda-go/tree/master/events.

Source https://stackoverflow.com/questions/65793629

QUESTION

Unit tests panic when returning dereferenced struct attribute rather than struct

Asked 2021-Jan-18 at 09:15

How does one go about testing a function that is returning a struct attribute that is of type string or number, rather than the struct itself?

I am trying to test the Lambda Code block with the Test Code block.

In Lambda Code block below, I am returning *resp.UserPoolClient.ClientSecret which dereferences to a string, rather than the *string.

When I run my test, I believe I get a panic error as *resp.UserPoolClient.ClientSecret is nil in the debugger.

Is my returning of the de-referenced attribute the wrong approach? Wondering if I'm better off just returning the whole resp object, not de-referenced? I was doing it this way as I didn't need to modify the values at all, just needed copies available for reference.

Lambda Code

...

ANSWER

Answered 2021-Jan-18 at 09:15

Is my returning of the de-referenced attribute the wrong approach?

Personally, I don't think it is wrong. I would do the same. But more seasoned Go developers might be able to contribute a more nuanced and detailed answer here.

In regards to the panic, I think the issue is that the mock you create does not return all the required information.

Your mock:

Source https://stackoverflow.com/questions/65767851

QUESTION

AWS SDK Go Lambda Unit Testing

Asked 2020-Dec-27 at 13:32

I'm trying to wrap my head around writing some unit tests for the first time ever, and I'm doing it in golang for a side project utilising aws lambda.

Below are two files.

main.go takes an event containing an email address, and creates the user in a cognito user pool.

main_test.go is supposed to mock the createUser function in main.go, but I'm getting an error when I try to run the test.

I've just switched my code from instantiating the client globally to using pointer receiver methods on the aws sdk interfaces after watching this youtube video.

main.go

...

ANSWER

Answered 2020-Dec-27 at 13:32

I think the issue here is, that you wanted to mock the AdminCreateUser() method, but did actually mock the CreateUser() method.

Therefore, when you create a new instance of the mockCreateUser struct, that "implements" the cidpif.CognitoIdentityProviderAPI interface, and then call the AdminCreateUser() method on it, it is not implemented and fails.

The relevant code in your main_test.go should be this:

Source https://stackoverflow.com/questions/65464240

QUESTION

Invoking an AWS lambda function through step functions in Golang

Asked 2020-Dec-26 at 20:00

I've got an AWS step function that invokes a lambda function written in Golang. For some reason it looks like the lambda function is not able to read the input to the step function.

The lambda function -

...

ANSWER

Answered 2020-Dec-26 at 01:51

The Payload part in your state machine definition is shaping the input passed to Lambda:

Source https://stackoverflow.com/questions/65451383

QUESTION

AWS Lambda GO PathError (Windows 10)

Asked 2020-Nov-16 at 15:55

I've done the following in PowerShell in VSCode:

...

ANSWER

Answered 2020-Nov-14 at 23:16

as per documetation The handler parameter must match the name of the executable containing your handler.

have you updated the handler name in the lambda configuration to main

by default its set to hello

Update it to main

Source https://stackoverflow.com/questions/64838323

QUESTION

AWS Go Lambda: If/else Issue

Asked 2020-Nov-14 at 18:21

I'm just trying to pick up Golang in the AWS Lambda flavor. I feel like the answer here is super simple, but I can't put my finger on it, nor could I find a post similar to this problem just yet.

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ANSWER

Answered 2020-Nov-14 at 18:21

Your else needs to be inline with the } closing the if.

Source https://stackoverflow.com/questions/64837092

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Vulnerabilities

No vulnerabilities reported

Install aws-lambda-go

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