asyncapi | AsyncAPI specification allows you to create machine | Pub Sub library
kandi X-RAY | asyncapi Summary
kandi X-RAY | asyncapi Summary
The AsyncAPI specification allows you to create machine-readable definitions of your asynchronous APIs.
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QUESTION
I want to generate code from AsyncAPI specification and try out how it works. My goal is to have only 1 socket open for each client and over that connection send/receive different types of messages. I couldnt find any example that would show me how to generate the code and run it.
Here is the API yaml
...ANSWER
Answered 2022-Feb-22 at 08:14That's because the template does not support anything other than Kafka,
AMQP, and
MQTT` protocols.
As of this writing, there does not exist any template for you to generate Java code for the WebSocket protocol.
If you want the template to support the protocol, please create a feature request for it.
Or you could author your own template if you'd like.
QUESTION
I'm using the asyncapi react component to render asyncapi documents. (https://github.com/asyncapi/asyncapi-react)
In the asyncapi specification it is allowed to use extensions (x-... values) at certain schema objects. (E.g. the server object: https://www.asyncapi.com/docs/specifications/v2.0.0#serverObject)
Is it possible to show these custom extensions with asyncapi-react component? How can I enable these functionality?
Thanks!
...ANSWER
Answered 2021-Nov-04 at 14:20Here is a maintainer of AsyncAPi-React component. For now, rendering extensions is only possible with the next
version of the component - you can install it with:
QUESTION
I'm trying to understand what correlation ids are in the AsyncAPI spec https://www.asyncapi.com/docs/specifications/v2.0.0#correlationIdObject
There is a full example dedicated to this, but I still have no idea what's the purpose of this property https://github.com/asyncapi/spec/blob/3470a6386736cf6002846d8eb7535308b79c75e8/examples/correlation-id.yml
I'm interested in:
- Is this information relevant for the data producer (server) or the consumer (client)?
- What information can we derive from it?
- For what practical use case should I use it?
ANSWER
Answered 2021-Aug-09 at 07:37correlationid
purpose is to specify where in the message you can find the correlation identifier. Sometimes this information is part of the header, sometimes can be in message payload. So the correlationid
prop is to unify the way such information is presented to the API description, it is a place where you specify where exactly identifier is located.
Why would you need it? at all. The main reason for me is always tracing. Correlation Identifier is also known as tracing-id or request-id. Please do call it differently. Basically, this is the id of the event that helps you trace the event in the system, through logs and tracing tools like Jeager and others. So you can trace the flow of the event in the system from point A to Z, to for example identify why it didn't get to Z, where did it stack.
It is also useful in request/reply pattern in event driven architecture. Where producer of the event wants to make sure the event it got in reply is a response from a consumer to this specific event.
QUESTION
How do I put my RabbitMq exchange to an asyncapi definition?
In the examples I found this ...
...ANSWER
Answered 2021-Jun-11 at 19:02There is an entire exchange
property you can use for the channel binding for AMQP. The binding you are currently using is the operation binding.
This means that you can define it as such
QUESTION
We want to use AsyncAPI to document our RabbitMQ messaging. Therefore, we installed asyncapi/generator as a npm dependency.
If you have a look at the package.json
you can see that it references npmi as a dependency which in turn is referencing to global-npm. If we want to run it, a globally installed node and npm is necessary.
Now if we run the generator ($ ag ./docs/asyncapi.yaml @asyncapi/html-template --output ./docs/asyncapi/ --force-write
) on a machine which has no globally installed npm following error message appears:
ANSWER
Answered 2021-Feb-03 at 14:32if you run ag
you must have installed it with npm initially right? so npm is most probably on this machine already.
The error you have, I saw it on windows only, when you have the generator as dependency, and most likely you use nvm.
Solution was this, so manual bump of global-npm
to have this fixed in npmi
. This is a workaround,long term I think we need to get rid of npmi
dependency from the generator I think
QUESTION
Im having trouble to understand the following javascript code:
...ANSWER
Answered 2020-Jan-14 at 11:14Because start
is async
, it will return an implicit promise.
The MDN reference has more information.
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