This workshop introduces to WebRTC and how you can utilize its open API to develop Rich Communication services in your web applications. It describes a general Java gateway to allow the translation of WebRTC to SIP, the protocol used internally in the majority of VoIP networks and how Groovy is used to empower the process. In the end of the workshop, the assistants will be able to develop and deploy a basic webpage and they will have the knowledge to customize the example and develop more complex features, adding audio, video or data to HTML5, iOS or Android applications.
Managing microservices with Istio Service MeshRafik HARABI
Developing and managing hundreds (or maybe thousands) of microservices at scale is a challenge for both development and operations teams.
We have seen over the last years the appearance of new frameworks dedicated to deliver ‘Cloud Native’ applications by providing a set of (out of box) building blocks. Most of these frameworks integrate microservices concerns at the code level.
Recently, we have seen the emerging of a new pattern known as sidecar or proxy promoting to push all these common concerns outside of the business code and provides them on the edge by integrate a new layer to the underlying platform called Service Mesh.
Istio is one of the leading Service Mesh implementing sidecar pattern.
We will go during the presentation throw the core concepts behind Istio, the capabilities that provides to manage, secure and observe microservices and how it gives a new breath for both developers and operations.
The presentation will be guided by a sequence of demo exposing Istio capabilities.
Video and slides synchronized, mp3 and slide download available at URL http://bit.ly/2mcpD5B.
Oliver Gould talks about the Linkerd project, a service mesh hosted by the Cloud Native Computing Foundation, to give operators control over the traffic between their microservices. He shares the lessons they've learned helping dozens of organizations get to production with Linkerd and how they've applied these lessons to tackle complexity with Linkerd. Filmed at qconnewyork.com.
Oliver Gould is co-founder and CTO at Buoyant, Inc.
Speaker: David Guest
Host: Angel Alberici
VirtualMuleys: 63
https://meetups.mulesoft.com/events/details/mulesoft-online-group-english-presents-event-driven-architecture-with-mulesoft/
In this session, we will look at
Event-driven (Asynch) vs Synchronous
Event-Driven Infrastructure
Event-Driven Patterns
Mulesoft Implementation
Managing microservices with Istio Service MeshRafik HARABI
Developing and managing hundreds (or maybe thousands) of microservices at scale is a challenge for both development and operations teams.
We have seen over the last years the appearance of new frameworks dedicated to deliver ‘Cloud Native’ applications by providing a set of (out of box) building blocks. Most of these frameworks integrate microservices concerns at the code level.
Recently, we have seen the emerging of a new pattern known as sidecar or proxy promoting to push all these common concerns outside of the business code and provides them on the edge by integrate a new layer to the underlying platform called Service Mesh.
Istio is one of the leading Service Mesh implementing sidecar pattern.
We will go during the presentation throw the core concepts behind Istio, the capabilities that provides to manage, secure and observe microservices and how it gives a new breath for both developers and operations.
The presentation will be guided by a sequence of demo exposing Istio capabilities.
Video and slides synchronized, mp3 and slide download available at URL http://bit.ly/2mcpD5B.
Oliver Gould talks about the Linkerd project, a service mesh hosted by the Cloud Native Computing Foundation, to give operators control over the traffic between their microservices. He shares the lessons they've learned helping dozens of organizations get to production with Linkerd and how they've applied these lessons to tackle complexity with Linkerd. Filmed at qconnewyork.com.
Oliver Gould is co-founder and CTO at Buoyant, Inc.
Speaker: David Guest
Host: Angel Alberici
VirtualMuleys: 63
https://meetups.mulesoft.com/events/details/mulesoft-online-group-english-presents-event-driven-architecture-with-mulesoft/
In this session, we will look at
Event-driven (Asynch) vs Synchronous
Event-Driven Infrastructure
Event-Driven Patterns
Mulesoft Implementation
Brushing skills on SignalR for ASP.NET developersONE BCG
Let’s take a quick peek at SignalR and how we use it.
SignalR is an open-source library available in ASP.NET, to help developers add real-time features in web applications and more. Chat is the most common application that you can think of, there is a lot more you can do.
SignalR can be used to add any sort of “real-time” web functionality like dashboards, collaborative tools that require simultaneous editing of documents, job progress updates, and real-time forms. It can enable completely new types of web applications that need high-frequency updates from the server. One of the most common examples is real-time gaming.
In spirit of “defense in depth”, more filtering layer more secure which is a real demand of customer to protect their application. So this short talk will bring up new weapon for firewall as a service in neutron network: L7 firewall API. In this session we will answer a question: “Why L7 firewall API is good for your cloud?”. As a standard firewall may only allow HTTP traffic on TCP port 80, but SQL injection attacks will be allowed through as valid HTTP request. How do we protect customer app? OK. let's discuss about: How does L7 firewall API look like? Which protocols L7 firewall API will support? HTTP over TCP only? How to implement L7 firewall API? iptables or bpf? Future of firewall. Last but not least, demo as demand.
Building a scalable microservice architecture with envoy, kubernetes and istioSAMIR BEHARA
Talk from O'Reilly Software Architecture Conference San Jose 2019
Microservices and containers have taken the software industry by storm. Transitioning from a monolith to microservices enables you to deploy your application more frequently, independently, and reliably. However, microservice architecture has its own challenges, and it has to deal with the same problems encountered while designing distributed systems.
Enter service mesh technology to the rescue. A service mesh reduces the complexity associated with microservices and provides functionality like load balancing, service discovery, traffic management, circuit breaking, telemetry, fault injection, and more. Istio is one of the best implementations of a service mesh at this point, while Kubernetes provides a platform for running microservices and automating deployment of containerized applications.
Join Samir Behara to go beyond the buzz and understand microservices and service mesh technologies.
Matrix, The Year To Date, Ben Parsons, TADSummit 2018Alan Quayle
Matrix, The Year To Date
Ben Parsons, Developer Advocate, Matrix
Matrix is an open standard for communication over the Internet.
I will talk about the matrix standard, both the technical implementation and the reasons for its creation.
We will focus on the changes and progress that has been made in the previous year, particularly getting the specification out of beta, and the growth of the ecosystem.
Finally, the Matrix environment continues to develop, and we'll look at the roadmap for the future.
With the publication of the WebRTC specification as a Candidate Recommendation, the work has hit a new milestone. In this session Dan will talk about what this means for WebRTC1.0, including feature stability and testing, and also what is being considered as work for beyond version 1.0.
WebRTC, and most of HTML5 tecnologies as File API, WebGL, WebWorkers, ...,answer to a common problem, i.e. to make 'in browser' apps able to do operations impossible before, as access to the video and audio stream by a javascript api.
GDG Cloud Taipei meetup #50 - Build go kit microservices at kubernetes with ...KAI CHU CHUNG
Gokit is microservice tookit and use Service/Endpoint/Transport to strict separation of concerns design. This talk to use go-kit develop microservice application integrate with istio, jaeger prometheus, etc service and deploy on Kubernetes.
apidays LIVE Helsinki - Implementing OpenAPI and GraphQL Services with gRPC b...apidays
apidays LIVE Helsinki - APIs, Platforms, And Ecosystems - Transforming Industries And Experiences
Implementing OpenAPI and GraphQL Services with gRPC
Tim Burks, Software Engineer at Google
Brushing skills on SignalR for ASP.NET developersONE BCG
Let’s take a quick peek at SignalR and how we use it.
SignalR is an open-source library available in ASP.NET, to help developers add real-time features in web applications and more. Chat is the most common application that you can think of, there is a lot more you can do.
SignalR can be used to add any sort of “real-time” web functionality like dashboards, collaborative tools that require simultaneous editing of documents, job progress updates, and real-time forms. It can enable completely new types of web applications that need high-frequency updates from the server. One of the most common examples is real-time gaming.
In spirit of “defense in depth”, more filtering layer more secure which is a real demand of customer to protect their application. So this short talk will bring up new weapon for firewall as a service in neutron network: L7 firewall API. In this session we will answer a question: “Why L7 firewall API is good for your cloud?”. As a standard firewall may only allow HTTP traffic on TCP port 80, but SQL injection attacks will be allowed through as valid HTTP request. How do we protect customer app? OK. let's discuss about: How does L7 firewall API look like? Which protocols L7 firewall API will support? HTTP over TCP only? How to implement L7 firewall API? iptables or bpf? Future of firewall. Last but not least, demo as demand.
Building a scalable microservice architecture with envoy, kubernetes and istioSAMIR BEHARA
Talk from O'Reilly Software Architecture Conference San Jose 2019
Microservices and containers have taken the software industry by storm. Transitioning from a monolith to microservices enables you to deploy your application more frequently, independently, and reliably. However, microservice architecture has its own challenges, and it has to deal with the same problems encountered while designing distributed systems.
Enter service mesh technology to the rescue. A service mesh reduces the complexity associated with microservices and provides functionality like load balancing, service discovery, traffic management, circuit breaking, telemetry, fault injection, and more. Istio is one of the best implementations of a service mesh at this point, while Kubernetes provides a platform for running microservices and automating deployment of containerized applications.
Join Samir Behara to go beyond the buzz and understand microservices and service mesh technologies.
Matrix, The Year To Date, Ben Parsons, TADSummit 2018Alan Quayle
Matrix, The Year To Date
Ben Parsons, Developer Advocate, Matrix
Matrix is an open standard for communication over the Internet.
I will talk about the matrix standard, both the technical implementation and the reasons for its creation.
We will focus on the changes and progress that has been made in the previous year, particularly getting the specification out of beta, and the growth of the ecosystem.
Finally, the Matrix environment continues to develop, and we'll look at the roadmap for the future.
With the publication of the WebRTC specification as a Candidate Recommendation, the work has hit a new milestone. In this session Dan will talk about what this means for WebRTC1.0, including feature stability and testing, and also what is being considered as work for beyond version 1.0.
WebRTC, and most of HTML5 tecnologies as File API, WebGL, WebWorkers, ...,answer to a common problem, i.e. to make 'in browser' apps able to do operations impossible before, as access to the video and audio stream by a javascript api.
GDG Cloud Taipei meetup #50 - Build go kit microservices at kubernetes with ...KAI CHU CHUNG
Gokit is microservice tookit and use Service/Endpoint/Transport to strict separation of concerns design. This talk to use go-kit develop microservice application integrate with istio, jaeger prometheus, etc service and deploy on Kubernetes.
apidays LIVE Helsinki - Implementing OpenAPI and GraphQL Services with gRPC b...apidays
apidays LIVE Helsinki - APIs, Platforms, And Ecosystems - Transforming Industries And Experiences
Implementing OpenAPI and GraphQL Services with gRPC
Tim Burks, Software Engineer at Google
Hybrid Apps (Native + Web) using WebKitAriya Hidayat
In term of innovations and mobile availability, WebKit is known to be the premier web rendering engine with the leading support for web standards such as HTML5, CSS3, and SVG. On MeeGo platform, WebKit can be leveraged easily via the use QtWebKit module which combines powerful WebKit features with the ease of use of Qt. The ground of developing applications using native technologies has been much explored, however there are still confusions, myths and misunderstanding as to what can be achieved with web technologies and hybrid native-web approach. This talk will highlight several tools and best practices in developing and testing good looking, feature-rich, and hardware-accelerated applications using web technologies targeting MeeGo platform in particular.
Hybrid Apps (Native + Web) using WebKitAriya Hidayat
In term of innovations and mobile availability, WebKit is known to be the premier web rendering engine with the leading support for web standards such as HTML5, CSS3, and SVG. On MeeGo platform, WebKit can be leveraged easily via the use QtWebKit module which combines powerful WebKit features with the ease of use of Qt. The ground of developing applications using native technologies has been much explored, however there are still confusions, myths and misunderstanding as to what can be achieved with web technologies and hybrid native-web approach. This talk will highlight several tools and best practices in developing and testing good looking, feature-rich, and hardware-accelerated applications using web technologies targeting MeeGo platform in particular.
Choreo Community Call 1: How to Create a Service in Choreo!
Agenda:
1. Introduction to Choreo
2. Introduction to Service Components
- What are Service components and its use cases
- Capabilities
3. Demo
- Deploy a Todo list web application
Watch the video at : https://youtube.com/live/FX06RgpNUB4
WebRTC is an exciting new technology that lets you easily add realtime communication capabilities to your web and native apps. Learn more about WebRTC in this presentation from the real-life practitioners at Gruveo (www.gruveo.com).
When third parties stop being polite... and start getting realCharles Vazac
By Nic Jansma and Charles Vazac (Akamai)
Fluent 2018
http://www.youtube.com/watch?v=L3LKtFh1HkQ
Would you give the Amazon Prime delivery robot the key to your house, just because it stops by to deliver delicious packages every day? Even if you would, do you still have 100% confidence that it wouldn’t accidentally drag in some mud, let the neighbor in, steal your things, or burn your house down? Worst-case scenarios such as these are what you should be planning for when deciding whether or not to include third-party libraries and services on your website. While most libraries have good intentions, by including them on your site, you have given them complete control over the kingdom. Once on your site, they can provide all of the great services you want—or they can destroy everything you’ve worked so hard to build.
It’s prudent to be cautious: we’ve all heard stories about how third-party libraries have caused slowdowns, broken websites, and even led to downtime. But how do you evaluate the actual costs and potential risks of a third-party library so you can balance that against the service it provides? Every library requires nonzero overhead to provide the service it claims. In many cases, the overhead is minimal and justified, but we should quantify it to understand the real cost. In addition, libraries need to be carefully crafted so they can avoid causing additional pain when the stars don’t align and things go wrong.
Nic Jansma and Charles Vazac perform an honest audit of several popular third-party libraries to understand their true cost to your site, exploring loading patterns, SPOF avoidance, JavaScript parsing, long tasks, runtime overhead, polyfill headaches, security and privacy concerns, and more. From how the library is loaded, to the moment it phones home, you’ll see how third-parties can affect the host page and discover best practices you can follow to ensure they do the least potential harm.
With all of the great performance tools available to developers today, we’ve gained a lot of insight into just how much third-party libraries are impacting our websites. Nic and Charles detail tools to help you decide if a library’s risks and unseen costs are worth it. While you may not have the time to perform a deep dive into every third-party library you want to include on your site, you’ll leave with a checklist of the most important best practices third-parties should be following for you to have confidence in them.
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Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
5. There was a time...
●
Where we use to see video by using plug-ins and
external software
●
Instant Messaging was delivered using the same
concepts and Voice = Telephony
●
Suddenly everything changed
10. So, what is WebRTC?
●
A built-in application program interface that enables
browser-to-browser applications for:
●
voice calling
●
video chat
●
peer to peer of any data
●
Media engine in the browser, accessed by JavaScript,
downloaded from web-server.
●
Collaborative W3C and IETF standardization
12. So, what is WebRTC - Technically Speaking?
PEER CONNECTION
(AUDIO, VIDEO, DATA)
WEB SERVER
(WEBRTC CONTROL)
GATEWAY
PEER CONNECTION
(AUDIO, VIDEO, DATA)
PEER CONNECTION
(AUDIO, VIDEO, DATA)
WEB SERVER
(WEBRTC CONTROL)
13. What isn't WebRTC - Technically Speaking?
●
No MTI coded media
●
No defined signaling mechanism
It's a Standard
Specification and an
opensource project
14. Signaling – The Two Approach
SIP over WebSockets JSON over WebSockets
15. Why JSON, XMPP, * and not SIP?
●
Much more easy
●
There are more developers
●
Language of the web
●
And it’s natively supported by browser
●
Drives more SIP into the network
21. Consideration
●
Lack of WebRTC Support:
●
SDK/library for Windows Phone and IOS devices
●
Hardware support for Mobile Phone
●
Software encoding & decoding will kill your battery
for VP8
●
New device will benefits from power processor
●
Snapdragon 800 4
●
nVidia Tegra 4
39. Follow the mantra…
●
Java is Groovy, Groovy is Java.
●
Flat learning curve for Java developers, start with
straight Java syntax then move on to a groovier syntax
as you feel comfortable.
●
Almost 98% Java code is Groovy code, meaning you
can in most changes rename *.java to *.groovy and it
will work.
40. Template Engine maps messages in both
directions between applications and network
JSON Template
Engine
SIP message
Application Network
46. Inbound INVITE Request Template
TemplateContext passed as an argument
Using Script Library method
Creating a future task executed on successful ME response
48. Groovy tips and tricks
●
Use “def” to declare variables and make them local:
def b = "foo“.
●
Simplification of a getter method notation: def factory
= context.webFactory // instead of
context.getWebFactory()
●
Safe navigation operator (?.): def errorCode =
context.webMessage?.header?.error_code
●
Check for a null object: if
(context.webMessage?.payload?.sdp)
49. Groovy tips and tricks
●
Compile static @groovy.transform.CompileStatic (no
dynamic types, compiles better and faster)
●
Iterators
●
’as’ keyword
●
Closures
●
array and list operators * and *. – called ”spread” and
”spread-dot”
●
GPath – similar to xpath but runs on objects not xml
50. Groovy scripts troubleshooting
●
Add println statements and see output in the system
out, e.g.: println “from=" + from
●
Use log4j and see output in wsc.log file, e.g.
org.apache.log4j.Logger logger =
org.apache.log4j.Logger.getLogger(getClass())
logger.info(“groovy info: from=“ + from)
●
When an exception is thrown within a Groovy script, a
stack trace will be logged in the wsc.log file.
52. Groovy scripts troubleshooting
Caused by: groovy.lang.MissingPropertyException: No such property: sipReq for class: Script2
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:50)
at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPropertySite.java:49)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:231
)
at Script2.pkg_register_dir_FROM_APP_typ_request_verb_connect_netsvc_default(Script2.groovy:705)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1085)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:952)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:909)
at groovy.lang.Closure.call(Closure.java:411)
at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.callGlobal(GroovyScriptEngineImpl.java:411)
at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.callGlobal(GroovyScriptEngineImpl.java:405)
at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.invokeImpl(GroovyScriptEngineImpl.java:394)
...
54. Example SIP Request Variable
// Create REGISTER request
def from = getFromAddress(context)
def to = getToAddress(context)
def sipReq = context.sipFactory.createSipRequest("REGISTER",
from, to)
// Set request URI
sipReq.requestURI =
context.sipFactory.createSipAddress(Constants.PROXY_SIP_URI)
.URI
// Set contact user
if (from.URI?.user) {
sipReq.setContactUser(from.URI.user)
}
// Set sip.instance to allow container to use SIP Outbound
// for routing purposes as defined in RFC 5626
def sipInstance = ""<urn:uuid:" +
java.util.UUID.randomUUID() + ">""
sipReq.setSipContactParameter("+sip.instance", sipInstance)
sipReq.setSipContactParameter("reg-id", "1")
context.subSessionStore.put("sip.instance", sipInstance)
sipReq.send()
55. GRUUs
A GRUU (Globally Routable User-Agent URI) is a SIP URI which
has a few properties.
?
57. Protecting System Performance
by Removing SIP Messages
if (sipResponse.status < 200) {
// Ignore provisional responses
} else if (sipResponse.status < 300)
// Proceed with processing
}
{...
}
58. Removing a SIP Header in a
Message
sipReq.removeHeader("headername")
59. Conditionally Passing SIP Headers
in Messages
def myWebParameter =
context.webMessage?.header.?myParameter
if (myWebParameter) {
sipRequest.setHeader("MyHeader",
myWebParameter)
}
60. REST
●
Asynchronous and synchronous callback responses
●
Support for HTTP and HTTPS
●
Support for all standard REST methods
●
Support for REST calls during message processing or
WebSocket connection establishment
61. Defining a REST URL Endpoint Constant
public static final MY_REST_URL =
"http://server:port/rest_endpoint"
Referencing the URL Constant
def restRequest =
context.restClient.createRequest(Constants.MY
_REST_URL...);
74. Summary
●
WebRTC is a great option to implement or add Real
Time Communication services.
●
Groovy is very good in network systems: it provides
flexibility, easy to use and good performance
●
If you like communications & developing, don't miss
TADHack 2015.