grav | Embedded decentralized message bus | Messaging library
kandi X-RAY | grav Summary
kandi X-RAY | grav Summary
Grav is an embedded distributed messaging library for Go applications. Grav allows interconnected components of your system to communicate effectively in a reliable, asynchronous manner. HTTP and RPC are hard to scale well in modern distributed systems, so we created Grav to add a performant and resilient messaging system to various distributed environments. Grav's main purpose is to act as a flexible abstraction that allows your application to discover and communicate using a variety of protocols without needing to re-write any code. Grav messages can be sent in-process (such as between Goroutines), or to other nodes via transport plugins such as Websocket and NATS. Transport plugins extend the core Grav bus to become a networked distributed messaging system. Grav nodes can also be configured to automatically discover each other using discovery plugins. Grav can operate as a decentralized mesh or integrate with centralized streaming platforms, making it extremely flexible.
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Top functions reviewed by kandi - BETA
- initHub initializes a new hub
- WaitUntil blocks until the pod is ready
- receiveMessagesSync starts a goroutine to synchronize messages .
- requestReply sends a request to a pod
- receiveMessagesAsync sends messages to Gav instance .
- newPod returns a new Pod
- New returns a new instance of Grav instance .
- new creates a new message .
- useGravInstance creates a new grav instance
- newPodConnection returns a new instance of a podConnection
grav Key Features
grav Examples and Code Snippets
Community Discussions
Trending Discussions on grav
QUESTION
In a grav theme plugin, I want to provide a method to fill a select input field in a page blueprint with some other page's routes:
...ANSWER
Answered 2021-Jun-15 at 07:54Try the following:
QUESTION
I installled grav from composer. copied the select2 doc folder from git repository to users folder on my grav cms installation When I open it on localhost it shows like the attached image. What am I doing wrong
...ANSWER
Answered 2021-Mar-12 at 07:09As a security measure, Grav 1.7 has enabled Twig function 'autoescape' by default. That means all output (stylesheets tags, scripts tags, content, etc.) are being escaped to prevent malicious code to run.
There are a few options to fix or workaround this:
- If you feel comfortable with code, you can go through all templates provided by the theme used and add filter
|raw
to output statements of which you are sure the data is safe. Eg.{{ content | raw }}
,{{ assets.css() | raw }}
,{{ assets.js() | raw }}
, etc. - Or you can add the following settings to
user/config/system.yaml
to disable auto-escaping:
QUESTION
I am facing three problems right now and i want to get there answer seprately, First question had already been asked you can also answer that first....
...ANSWER
Answered 2021-Mar-05 at 08:27The error is caused by the fact that you tried to get an element from base
instead of bases
if base.y - base[i+1].y < 20:
QUESTION
I am facing three problems right now and i want to get there answer seprately, plz cooperate....
...ANSWER
Answered 2021-Mar-04 at 11:34I think the problem is you're just telling it to draw the game over then continuing with everything else, you're not stopping the rest of the code from running. How about adding another variable, is_game_over
then replace your if code with:
QUESTION
I created a Bootstrap form with the following footer:
...ANSWER
Answered 2021-Feb-06 at 08:09You might give the following a try.
QUESTION
I'm making a kind of physics thing where you can place black squares and they will fall. In the demo below, you can type in a location and press go (e.g "b6") and it will place a square there. However, it should fall one square at a time, because of the setinterval, but it just teleports to the bottom instead. What have I done wrong in my code?
...ANSWER
Answered 2020-Oct-25 at 09:39Calling grav
just once is enough to move the block all the way to the bottom, because you're looping through the blocks in order, left-to-right, top-to-bottom, and so when you move b6 to b7, it gets found again when the function keeps going and moves b7 to b8, and then again to b9, etc.
If you loop backward, that won't happen, but it might make your animation not work the way you want it to when there are multiple blocks:
QUESTION
Django 3.0.8
Python 3.7.x
I've got a Django project with a few apps. I'm trying to make some 'default' error pages for like 400, 403, 404, 500 errors. I've done that and the appropriate templates display - but without any styling or JS.
In the 404 error page, I'm trying to link to the CSS from one of the apps so the correct styling gets applied - but in the console, I see this error:
...ANSWER
Answered 2020-Aug-02 at 18:46This usually means the page can't find your css file and is trying to load your not found page which is html.
Try using a full absolute path for the link on your error page and see if that works:
QUESTION
I'm trying to process data within the matplotlib.FuncAnimation function. Anyhow, the data is iterable and I'm struggling to get the animation function in python to iterate over an external variable. In this case the Ball_1 variable.
The error this throws back is the following: 'UnboundLocalError: local variable 'ball_1' referenced before assignment'
I hindsight this isn't the best way to do it. However I would like to know if it is possible?
...ANSWER
Answered 2020-Sep-15 at 13:06You can use functools.partial or a lambda function. Let's say you change your code so ball_1
and ball_1_plt
are not global anymore, but arguments to DEM
. Then you call it like this:
QUESTION
I have a blog page and trying to add a footer as a partial , but the title of the blog page from footer.md is not correctly displayed
I’ve this code to the base.html.twig :
{% include 'partials/footer.html.twig' %}
pages/footer/default.md
...ANSWER
Answered 2020-Sep-04 at 10:29Pages are parsed upfront, not at the moment when called in Twig using {% set content = pages.find('/footer') %}
.
During parsing, the context is the page itself, so {{ page.title }}
inside its Markdown will always refer to the current page object. Hence the value
Footer
in your example.
However the Markdown of a page object can be parsed inside Twig using the Grav function evaluate_twig
. See Grav's docs on Twig Filters & Functions
For example:
'/pages/footer/default.md'
QUESTION
I build a theme for Grav cms and i need to check if a plugin is enabled or not using the code below inside my twig template:
...ANSWER
Answered 2020-Aug-20 at 13:00Have you tried (without the dot):
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