statemachines | Nondeterministic Finite State Machines for JavaScript

by aaditmshah JavaScript Version: 0.1.1 License: MIT

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

kandi X-RAY | statemachines Summary

statemachines is a JavaScript library typically used in User Interface applications. statemachines has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i statemachines' or download it from GitHub, npm.

Deterministic and Nondeterministic Finite State Machines for JavaScript. The backend for my regex library.

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Support

statemachines has a low active ecosystem.

It has 29 star(s) with 1 fork(s). There are 1 watchers for this library.

It had no major release in the last 12 months.

There are 0 open issues and 1 have been closed. On average issues are closed in 15 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of statemachines is 0.1.1

Quality

statemachines has 0 bugs and 0 code smells.

Security

statemachines has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

statemachines code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

statemachines is licensed under the MIT License. This license is Permissive.

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

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statemachines releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed statemachines and discovered the below as its top functions. This is intended to give you an instant insight into statemachines implemented functionality, and help decide if they suit your requirements.

Apply a set of kernels
Sorts the moves of the transition in order .
Gets the list of transitions from other states .
Returns the positions of the transition .
Returns a set of properties .
Test if a set contains elements .
Returns the union of the specified keys .
Check if last callbacks are currently set .
Add an element to the set .
Public function .

Get all kandi verified functions for this library.

statemachines Key Features

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statemachines Examples and Code Snippets

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Community Discussions

Trending Discussions on statemachines

System.Invalid**: Failed to deploy distro docker-desktop to C:\Users\**\AppData\Local\Docker\wsl\distro: exit code: -1 stdout: Error: 0xffffffff

Handling error in API Gateway with Synchronous StepFunctions

Serverless Framework - Unable to Deploy Step Function

Serverless Framework - Cannot generate IAM policy statement for Task state

Resource handler returned message: "Model validation failed (#/Tags/1/Value: expected minLength: 1, actual: 0)"

QStateMachine is not emitting started() signal in release mode

How should we configure apigateway--> step function proxy in AWS serverless framework?

MassTransit messages types must not be System types exception

AWS SAM template - set Integration response mapping template

Determining type based on it's props

QUESTION

System.Invalid**: Failed to deploy distro docker-desktop to C:\Users\**\AppData\Local\Docker\wsl\distro: exit code: -1 stdout: Error: 0xffffffff

Asked 2022-Mar-06 at 23:18

Windows 11 Build : 22000.527

Image : Screenshot

Windows Subsystem for Linux : Checked

Hyper-V : Checked

System.InvalidOperationException: Failed to deploy distro docker-desktop to C:\Users\MohNawawi\AppData\Local\Docker\wsl\distro: exit code: -1 stdout: Error: 0xffffffff

stderr: at Docker.ApiServices.WSL2.WslShortLivedCommandResult.LogAndThrowIfUnexpectedExitCode(String prefix, ILogger log, Int32 expectedExitCode) in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.ApiServices\WSL2\WslCommand.cs:line 146 at Docker.Engines.WSL2.WSL2Provisioning.d__17.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.Engines\WSL2\WSL2Provisioning.cs:line 168 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Docker.Engines.WSL2.WSL2Provisioning.d__8.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.Engines\WSL2\WSL2Provisioning.cs:line 77 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Docker.Engines.WSL2.LinuxWSL2Engine.d__28.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.Engines\WSL2\LinuxWSL2Engine.cs:line 178 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Docker.ApiServices.StateMachines.TaskExtensions.d__0.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.ApiServices\StateMachines\TaskExtensions.cs:line 29 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Docker.ApiServices.StateMachines.StartTransition.d__5.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.ApiServices\StateMachines\StartTransition.cs:line 67 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Docker.ApiServices.StateMachines.StartTransition.d__5.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.ApiServices\StateMachines\StartTransition.cs:line 92 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Docker.ApiServices.StateMachines.EngineStateMachine.d__14.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.ApiServices\StateMachines\EngineStateMachine.cs:line 69 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Docker.Engines.Engines.d__29.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.Engines\Engines.cs:line 339 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Docker.Engines.Engines.d__29.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.Engines\Engines.cs:line 357 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Docker.ApiServices.Services.DesktopService.d__4.MoveNext() in C:\workspaces\PR-17296\src\github.com\docker\pinata\win\src\Docker.ApiServices\Services\DesktopService.cs:line 39

I hope someone can help me Thank you so much.

...

ANSWER

Answered 2022-Mar-06 at 23:18

We just had this issue and managed to fix it. Seems like it is because a key step in the install was skipped - you probably don't have a linux distribution locally installed. We did an uninstall of docker (v 4.5.1) and then a clean install of Docker version 4.3.0.. Then a restart of the computer. It then prompted us to go to this page and follow the steps from step 4 onwards.

https://docs.microsoft.com/en-us/windows/wsl/install-manual#step-4---download-the-linux-kernel-update-package

Source https://stackoverflow.com/questions/71310096

QUESTION

Handling error in API Gateway with Synchronous StepFunctions

Asked 2022-Feb-18 at 13:25

I'm working on a project with this workflow : an API Gateway (defined using open api) trigger a Step function from AWS. There is 2 steps, and in case of errors, there is a catch block in the State machine definition.

But I'm facing an issue with error handling. Even if my code throw an error (400 for example), my Postman (or other REST API testing tools) respond with a 200. And I would like to have a 500/400...

Here is the code :

Step function definiton as serverless

...

ANSWER

Answered 2021-Aug-03 at 13:30

After a quick scan of your code I think you've missed two things.

Firstly, in the step function, your error state is of type "Fail" which means that the step function stops and nothing is returned to the API Gateway so all it can do is report the 200 (or the default status code set in the open api definition).

To get a non-standard status code back to the client, you have to return something from the step function and then use a data transformation in the API Gateway to override the status function.

So your fallback state should be of type "Pass" and output the error information, including a status code.

And then you detect that status code in the Gateway and use it to override the response status code using a velocity template.

Take a look at https://docs.aws.amazon.com/apigateway/latest/developerguide/apigateway-override-request-response-parameters.html for an example.

Source https://stackoverflow.com/questions/68634052

QUESTION

Serverless Framework - Unable to Deploy Step Function

Asked 2022-Feb-11 at 12:31

I have the following serverless yaml that I'm using to try to deploy my first step function:

...

ANSWER

Answered 2022-Feb-11 at 12:31

Problem was due to yaml formatting. Line 192

Fn::GetAtt: [PullSqlSvr, Arn]

This needed an extra tab to indent below "Resource:"

Source https://stackoverflow.com/questions/71068564

QUESTION

Serverless Framework - Cannot generate IAM policy statement for Task state

Asked 2022-Feb-08 at 16:32

I'm trying to use serverless framework to deploy a step function that calls a couple of lambdas. Here's my serverless.yml:

...

ANSWER

Answered 2022-Feb-08 at 14:41

In my experience serverless-step-functions fails to deploy properly if any keys in the Steps block begin with a lowercase letter. Changing it to the seemingly case-sensitive equivalents, like the following, and redeploying may do the trick:

Source https://stackoverflow.com/questions/71035349

QUESTION

Resource handler returned message: "Model validation failed (#/Tags/1/Value: expected minLength: 1, actual: 0)"

Asked 2021-Dec-31 at 13:49

I'm trying to create a simple step functions in serverless.yml Code is as below in serverless

...

ANSWER

Answered 2021-Dec-31 at 13:49

So it turns out this error has nothing to do with the step functions definiton, which is fine. In serverless I've defined the tags also for versioning like below

Source https://stackoverflow.com/questions/70520046

QUESTION

QStateMachine is not emitting started() signal in release mode

Asked 2021-Dec-09 at 15:17

I am using QStateMachine framework for a device controller class. It works fine in debug mode. But, in the release mode QStateMachine::started() signal is not being emitted. A simple widget project for the problem (form is empty) is below.

Qt Version 5.14.1
Compiler : MSVC 2017, MinGW (both are 64-bit and results are same)

Test.pro

...

ANSWER

Answered 2021-Dec-09 at 15:17

In release mode, it is likely that the connection is not made because you wrapped it inside a Q_ASSERT macro.

See Q_ASSERT release build semantics for more informations.

Source https://stackoverflow.com/questions/70287726

QUESTION

How should we configure apigateway--> step function proxy in AWS serverless framework?

Asked 2021-Nov-16 at 12:43

We are using serverless framewotk (AWS) to create :

ApiGateway which connects to a step function via a plugin called: serverless-step-functions

This is the current code which uses the serverless-step-functions plugin :

...

ANSWER

Answered 2021-Nov-16 at 12:43

To Configure AWS API Gateway integration to step function you have to follow these steps:

Configure Api gateway resource

Source https://stackoverflow.com/questions/69962856

QUESTION

MassTransit messages types must not be System types exception

Asked 2021-Oct-27 at 14:21

I'm pretty new to MassTransit and don't understand what am I doing wrong to get the following exception: Messages types must not be System types.

Here are my definitions:

...

ANSWER

Answered 2021-Oct-27 at 13:00

First, your bus configuration is a bit strange, so I've cleaned that up:

Source https://stackoverflow.com/questions/69738811

QUESTION

AWS SAM template - set Integration response mapping template

Asked 2021-Oct-22 at 06:58

I have a AWS SAM template that creates a API Gateway hooked into a Step Function.

This is all working fine, but I need to add a Integration Response Mapping Template to the response back from Step Functions.

I cant see that this is possible with SAM templates?

I found the relevant Cloud Formation template for it: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apitgateway-method-integration-integrationresponse.html

But It looks like I would have to create the whole AWS::ApiGateway::Method / Integration / IntegrationResponses chain - and then I'm not sure how you reference that from the other parts of the SAM template.

I read that it can be done with openAPI / Swagger definition - is that the only way? Or is there a cleaner way to simply add this template?

This is watered down version of what I have just to demonstrate ...

...

ANSWER

Answered 2021-Oct-22 at 06:58

Right now you're using AWS SAM events in your state machine to construct the API for you, which is a very easy way to easily construct the API. However, certain aspects of the API cannot be constructed this way.

You can still use AWS SAM however to construct the API with all the advanced features when you use the DefinitionBody attribute of the AWS::Serverless::Api (or the DefinitionUri). This allows you to specify the API using the OpenAPI specification with the OpenAPI extensions.

You still need to define the event in the StateMachine though, since this will also ensure that the correct permissions are configured for your API to call your other services. If you don't specify the event, you'll have to fix the permissions yourself.

Source https://stackoverflow.com/questions/69664089

QUESTION

Determining type based on it's props

Asked 2021-Oct-21 at 12:11

I have these two types:

...

ANSWER

Answered 2021-Oct-21 at 12:11

I also can't just test for a property existing only on Equipment, since ts will see it as not a union.

Using square bracket notation allows you to test without TS complaining

Source https://stackoverflow.com/questions/69661687

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install statemachines

State Machines may be installed on node.js via the node package manager using the command npm install statemachines. You may also install it on RingoJS using the command ringo-admin install aaditmshah/statemachines. You may install it as a component for web apps using the command component install aaditmshah/statemachines.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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