cqs | CouchDB Queue Service : API-compatible Amazon SQS | Runtime Evironment library

by jhs JavaScript Version: Current License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(7)Vulnerabilities Install Support

kandi X-RAY | cqs Summary

cqs is a JavaScript library typically used in Server, Runtime Evironment, Nodejs, Amazon S3 applications. cqs has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

CouchDB Queue Service: API-compatible Amazon SQS implementation with NodeJS, CouchDB

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Security

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Support

cqs has a low active ecosystem.

It has 124 star(s) with 11 fork(s). There are 11 watchers for this library.

It had no major release in the last 6 months.

There are 5 open issues and 2 have been closed. On average issues are closed in 1 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of cqs is current.

Quality

cqs has 0 bugs and 0 code smells.

Security

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

cqs code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

cqs 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

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

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

cqs saves you 14 person hours of effort in developing the same functionality from scratch.

It has 40 lines of code, 0 functions and 25 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

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

Validate a new update dialog .
Create a new message document
listing queues for a given directory
Show a list of queued commands
add a new queue to the queue
Receive message
Create a string representation of passed object
Confirm DB connection
Send a message to the queue
check if a message is visible

Get all kandi verified functions for this library.

cqs Key Features

No Key Features are available at this moment for cqs.

cqs Examples and Code Snippets

No Code Snippets are available at this moment for cqs.

Community Discussions

Trending Discussions on cqs

Is there a way to conditionally register types as fallback with .NET dependency injection?

Merging multiple rows into one row by several conditions in R

Read model/aggregate code organization in simplified DDD/CQS pattern where read model from other domain is needed

How to choose between adding an interface and adding an attribute

State Space model code from Time Series analysis Springer book, and code error from optimization

Azure FHIR: Get RawResource in Plain Text

Routing to an error channel if fault is thrown in outbound gateway in DSL

QUESTION

Is there a way to conditionally register types as fallback with .NET dependency injection?

Asked 2021-Nov-02 at 08:14

We currently use SimpleInjector as our DI container to implement the command-query-separation (CQS) pattern by using ICommand and IQuery and ICommandHandler and IQueryHandler interfaces.

We also use the decorator pattern to perform aspect-oriented programming. For one of our decorators we use FluentValidation to perform validation logic for specific commands or queries.

With SimpleInjector, it is possible to conditionally register types. This is useful for our FluentValidation decorator when we have a command or query which does not have a corresponding validator. Then we use a NullValidator as fallback which does nothing. Exactly this scenario is described in the SimpleInjector documentation and looks like this for the FluentValidation scenario:

...

ANSWER

Answered 2021-Nov-02 at 08:14

I managed to work around this issue by injecting an IEnumerable> in the FluentValidationCommandHandlerDecorator decorator instead of one single IValidator instance. In that case I don't need a NullValidator at all and an empty collection gets injected if no validator is available for the specific command or query.

SimpleInjector must be changed to register a collection of IValidator instances:

Source https://stackoverflow.com/questions/69772078

QUESTION

Merging multiple rows into one row by several conditions in R

Asked 2021-May-04 at 16:37

I am trying to merge multiple rows into one row. I want all samples from Group.1 with its corresponding Group.2 and cqs data merged into one row by lot_number.

Important detail: I have three different sample types in the Group.1 column. I think what I'm having such a hard time with is that I need to merge three different sample types into one row by lot_number. A lot of the tools I'm aware of only merge two data tables or frames.

What I have:

Group.1 Group.2 cqs lot_number 1xLOD_2234567 MS2 39 2234567 NC_2234567 MS2 37 2234567

What I need:

Group.1 Group.2 cqs lot_number (new col) (new col) (new col) 1xLOD_2234567 MS2 39 2234567 NC_2234567 MS2 37

These are different concentration levels of solutions that I want matched up by lot number. I have tried ideas like:

...

ANSWER

Answered 2021-May-04 at 16:36

We can use pivot_wider

Source https://stackoverflow.com/questions/67374789

QUESTION

Read model/aggregate code organization in simplified DDD/CQS pattern where read model from other domain is needed

Asked 2021-Feb-14 at 19:43

First of all as for "simplified DDD/CQS pattern" I am referencing https://github.com/dotnet-architecture/eShopOnContainers example dotnet application (which is not "strict" DDD/CQRS). However I am not dotnet developer and my question is related to general design patterns / code organization.

My own case is as follows: I have "conference" domain with "conference" root aggregate and "conference_edition" aggregate. In RDBMS language conference has many editions. In this domain all "communication" with outside world is done through root aggregate "conference". So there are use cases like Conference.create(), Conference.addDraftEdition(), Conference.publishEdition() etc.

I have also "booking" domain which manages bookings for specific conference editions (people book tickets for a conference edition).

My question is related to the read model / aggregate of "conference" service (domain?). CMS of this application needs following read model for a conference (example in json for simplicity):

...

ANSWER

Answered 2021-Feb-14 at 19:43

Either of the first or second is reasonable. The choice between them will be heavily influenced by how much you want to spread business logic into infrastructure.

Since the conference and booking domains appear to be different bounded contexts, the third option is really only justifiable if there's some change to a conference edition that's only allowable if bookings are in a certain state.

Source https://stackoverflow.com/questions/66126094

QUESTION

How to choose between adding an interface and adding an attribute

Asked 2020-Aug-14 at 13:42

In our project we are using a CQS pattern. Because some of our queries call other webservices, which in our case can be slow, we want to cache those results. Now I've found several solutions how to do this:

Create an CachedQuery which inherits from a Query object.
Add a 'CacheResult' attribute to the queryhandler, have a decorator check for the presence of this attribute
Add a 'CacheResult' attribute to the query, have a decorator check for the presence of this attribute
Implement a 'ICacheableQuery' interface, have a decorator check for the implementation of this interface.

option 1 is discarded because of "composition over inheritance'

option 2 is not really flexible, e.g. it is not possible to not cache

But how to choose between 3 and 4? Adding an attribute is not inheritance (or is it?) so that is equal. Both are flexible enough, at least for now.

Do I miss some convincing argument? Or is it a matter of personal preference, if so what would you choose to do?

...

ANSWER

Answered 2020-Aug-14 at 13:22

Adding an attribute is not inheritance (or is it?)

Whether you want your custom attribute to be inherited is up to you to implement. When you write code that checks the presence of an attribute, you can write it so that it checks the base classes/interfaces for the attribute as well.

As a commenter already noted, attributes allow you to add metadata that could be useful depending on what you're trying to implement.

Generally, I dislike having interfaces without methods just for the sake of differentiating types. But in the end...

Is it a matter of personal preference

Yes.

Source https://stackoverflow.com/questions/63413478

QUESTION

State Space model code from Time Series analysis Springer book, and code error from optimization

Asked 2020-Jul-17 at 11:30

I'm trying to apply State Space model code from the book, Time Series analysis and its applications from Springer book, to my data.

The code is as below:

...

ANSWER

Answered 2020-Jul-17 at 11:30

the data jj is provided in the package astsa. If you have installed the package you can check it using astsa::jj. The class of astsa::jj is ts meaning that it is a time series object.

However, the error in your optimization is caused by the NA's.

I've attached a reprex where you can see that the example of the book seems to work.

And in a second example I've transformed your data into a ts object after eliminating the NA values. Optimization with optim worked for the adjusted data, but the algorithm has not reached convergence and stopped after 100 iterations. The computation of the standard errors throws a warning that NaNs were produced. The reason for that is that the variance-covariance matrix has a negative value on the diagonal (but this are the variances and they should be strictly positive).

Since I don't know the example taken from the book, you'll try and find out better starting values for your data.

In the attached reprex the forecast plot is at the end of the document (no idea why it is not in the right place), but that's not important.

Source https://stackoverflow.com/questions/62922906

QUESTION

Azure FHIR: Get RawResource in Plain Text

Asked 2020-Jun-09 at 21:03

I've just started my research on the "Azure FHIR SQL Server Version".

I had some issues trying to get the Json Resource in plain text, since It is stored compressed in the database (as shown in the following lines):

...

ANSWER

Answered 2020-Jun-09 at 21:03

The resources are Gzipped, so something like:

Source https://stackoverflow.com/questions/62291571

QUESTION

Routing to an error channel if fault is thrown in outbound gateway in DSL

Asked 2020-May-22 at 13:22

I have the following Spring Integration JAva DSL code:

...

ANSWER

Answered 2020-May-21 at 15:15

See this method on the ExpressionEvaluatingRequestHandlerAdvice:

Source https://stackoverflow.com/questions/61922689

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

Vulnerabilities

No vulnerabilities reported

Install cqs

You can download it from GitHub.

Support

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