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FAQ

Our email list is divided into three categories: regions, industries and job functions. Regional email can help businesses target consumers or businesses in specific areas. APAC Email Lists broken down by industry help optimize your advertising efforts. If you’re marketing to a niche buyer, then our email lists filtered by job function can be incredibly helpful.

Ethically-sourced and robust database of over 1 Billion+ unique email addresses

Our B2B and B2C data list covers over 100+ countries including APAC and EMEA with most sought after industries including Automotive, Banking & Financial services, Manufacturing, Technology, Telecommunications.

In general, once we’ve received your request for data, it takes 24 hours to first compile your specific data and you’ll receive the data within 24 hours of your initial order.

Our data standards are extremely high. We pride ourselves on providing 97% accurate APAC telephone number database, and we’ll provide you with replacement data for all information that doesn’t meet your standards our expectations.

We pride ourselves on providing customers with high quality data. Our APAC Email Database and mailing lists are updated semi-annually conforming to all requirements set by the Direct Marketing Association and comply with CAN-SPAM.

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Emailproleads provides Mobile Database to individuals or organizations for the sole purpose of promoting your business. In Digital Marketing. The mobile number database of Emailproleads helps to reach the highest level of business conversations.

Mobile number databases are a crucial marketing tool with many numbers from all over the globe. Since the arrival of smartphones, there has been an exponential rise in the number of buyers because technology has changed the way of marketing. Mobile number databases are essential for every retailer today in marketing and selling their goods and services. The world is now filled with mobiles that have internet connectivity across the globe.

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Now and again, we can see advertisements promoting the company. These ads result in the expansion of the company. It is possible to expand your marketing further using other services for Digital Marketing like Bulk SMS, Voice Calls, WhatsApp Marketing, etc.

Emailproleads checks every mobile number in the database using various strategies and techniques to ensure that buyers receive the most appropriate and relevant customer number and successfully meet their marketing goals and objectives.

This service assists you find your loyal customers keen to purchase your product. If you’d like to see your brand acknowledged by customers, using a database of mobile numbers is among the most effective ways to accomplish this.

What is the meaning of Phone Number Data?

A telephone number is a specific number that telecommunication firms assign to their customers, thus permitting them to communicate via an upgraded method of routing destination codes. Telecom companies give whole numbers within the limits of regional or national telephone numbering plans. With more than five billion users of mobile phones around the world, phone number information is now a gold mine for government and business operations.

What is the method of collecting the phone Number Data collected?

Having the number of current and potential customers and marketing professionals opens up a wealth of opportunities for lead generation and CRM. The presence of customer numbers is an excellent way to boost marketing campaigns as it allows marketers to interact with their target audience via rich multimedia and mobile messaging. Therefore, gathering phone number information is vital to any modern-day marketing strategy. The strategies consumers can use to collect data from phone numbers include:

* Adding contact forms on websites.
* Requests to be made for phone calls from customers.
* Use mobile keyword phrases for promotions to encourage prospective customers to contact you.
* Applying app updates prompts users to change their email details each time they sign in.
* Acquiring phone numbers that are already available information from third-party service companies with the information.

What are the main characteristics of the Phone Number Data?

One of the critical advantages of phone number data is that it is created to reveal the geographic location of mobile users because phone numbers contain particular strings specific to a region or country that show the user’s precise position. This is useful in targeted campaigns, mainly where marketers target a specific area that can target their marketing efforts.

To prevent duplicates and improve accessibility, the phone number information is typically stored in the E164 international format, which defines the essential characteristics of a recorded phone number. The specifications that are followed in this format are the number code for the country (CC) and an NDC, a country code (CC), a national destination code (NDC), and the subscriber number (SN).

What do you think of the phone Number Data used for?

The possibilities that can be made possible by the phone number information are endless. The availability of a phone number database means that companies worldwide can market their products directly to prospective customers without using third-party companies.

Because phone numbers are region – and country-specific and country-specific, data from phone numbers gives marketers a comprehensive view of the scope of marketing campaigns, which helps them decide on the best areas they should focus their time and resources on. Also, governments use the data from mobile numbers to study people’s mobility, geographic subdivisions, urban planning, help with development plans, and security concerns such as KYC.

How can an individual determine the validity of Phone Number Data?

In determining the quality of the phone number information, users should be aware of the fundamental quality aspects of analysis. These are:
Completeness. All info about phone numbers within the database must be correct.
Accuracy. This measure reflects how well the data identifies the individual described within the actual world.
Consistency. This indicates how well the data provider follows the rules to facilitate data retrieval.
Accessibility. The phone number database should be accessible where the data is organized to allow easy navigation and immediate commercial use.

Where can I purchase Phone Number Data?

The Data Providers and Vendors listed in Datarade provide Phone Number Data products and examples. Most popular products for Phone Number Data and data sets available on our platform include China B2B phone number – Chinese businesses by Octobot, IPQS Phone Number Validation and Reputation through IPQualityScore (IPQS), and B2B Contact Direct Dial/Cell Phone Number Direct Dial and mobile numbers for cold calling Real-time verified contact email and Phone Number by Lead for business.

How do I get my phone Number Data?

You can find phone number data from Emailproleads.

What are data types similar that are similar to Phone Number Data?

Telephone Number Data is comparable with Address Data; Email Address Data, MAID Hashed Email Data, Identification Linkage Data, and Household-Level Identity Data. These categories of data are typically employed to aid in Identity Resolution and Data Onboarding.

Which are your most popular uses for Phone Number Data?

The top uses that involve Phone Number Data are Identity Resolution, Data Onboarding, and Direct Marketing.

Let’s say you’re running a business selling strategy that demands you to connect with the maximum number of people you can. If your job is laid off for you, it can often be challenging to determine what to do. First, you should create your list of prospective customers and then save your call data in an electronic database.

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Though you might believe that working with lists of telephone numbers and storing them in databases is all you need to launch a cold calling campaign, it’s not the case. Since a telephone number database could contain thousands or millions of leads, along with important data points about each potential customer, It is essential to adhere to the best practices for a Database of telephone numbers. Methods to avoid becoming overwhelmed or losing important data.

To build a phone number database that delivers outcomes, you must start on the right starting point. It is possible to do this by purchasing lists of sales leads from a reliable, dependable company like ours. It’s equally important to have the right tools to allow your team to contact the most people possible.

In addition to high-quality telephone marketing lists, we provide advice on the best techniques for targeting databases and dialer software that can make lead generation more efficient and less expensive over time. Our customer service representatives are ready to assist you.

APAC Telephone Number Database Best Practices

After you’ve established the basis for success by acquiring high-quality lead lists and implementing dialers that can boost how many calls your team receives by up to 400 percent, you’re ready to become familiar with best practices for your industry. By adhering to a list of phones and best database practices, you’ll dramatically improve the odds that your team will succeed in the short and long term.

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Here are the best techniques for telemarketing databases that you should consider a priority to observe.

Get Organized
A well-organized APAC mobile phone directory includes contacts organized according to phone country, postal, area, city, and province. By narrowing your calls to only one of the criteria, it is possible to incorporate new business information into your list, then sort and retarget top leads.

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Create a strategy to manage your phone lists. Naturally, your organizational plan must be based on the purpose of your cold-calling campaign. Your business’s goals will affect the traits your most promising prospects have. Make a profile of the most appealing candidate based on the plans for your marketing campaign. Make sure you make your leads list to ensure that the candidates who best meet your ideal profile of a prospect are first on your list of leads. List.

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Determine Who Has Access to and edit your database
Your phone number list doesn’t only represent an investment in money but also a resource that your team can use to increase sales. Although your phone number list is essential because you bought it, it’s also advantageous due to the possibility that it can improve your bottom line. In this regard, you should think carefully about who has access to and control your database.

It is generally recommended to restrict the number of users who have access to your database to only those who use it to communicate with potential customers to achieve your campaign’s goals. If an individual is not active with your marketing campaign, then there’s no reason for them to gain access to your telephone number database.

It’s also advisable to restrict access to the database you have created; it’s best to allow editing privileges to people who require them. This generally means that you only give editing rights to agents that will be conducting cold calls. It will be necessary to modify the database to make changes to records and notes that could aid in subsequent calls.

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Create Your Database
Databases are knowledge centers that store information for sales personnel. They are vital to gain knowledge and share it with your sales staff. Even if it’s just to keep call notes, callback databases can help your sales team to achieve maximum value and benefit from lists of telemarketing calls.

As time passes, your phone number list will likely expand and include more contact numbers and information on your customers. When you get recommendations from your current prospects or purchase leads lists, or either, it’s essential to grow the size of your database to include as much data as you can to assist you in achieving your goals for the business in the near and far future and at every step in between.

4. Keep Your Database
Although you want your database to expand with time, you do not want it to contain obsolete or ineffective details. To keep your database from overloading with useless information, it’s essential to maintain it regularly, including removing old records and updating your prospective customers with their contact details.

One of the most effective ways to ensure your database is to ensure that it doesn’t contain numbers listed on the Do Not Call list. If you make a call to an address that is listed on a Do Not List, you could result in your business spending lots of money, perhaps even millions. With the free tools available online, think about scrubbing all your data against the Do Not Call registry at least twice yearly.

If you’ve learned the basics of a telephone list and best practices for database management, you can contact

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Today, download the mobile phone/cell numbers directory of all cities and states based on the network or operator. The database of mobile numbers is an excellent resource for advertising and bulk SMS, targeting specific regions of people, electoral campaigns, or other campaigns. Before you use these numbers, verify the ” Do Not Disturb” status in conjunction with TRAI. If it is activated, it is not permitted to use these numbers to promote your business.

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It’s the quickest method of building an extensive list of phone numbers for your potential customers. Pay a fixed sum (per list, contact, country, or industry) and get every mobile number you paid for and have in your possession. You can then utilize them several times to reach out to customers to convince them to purchase their products or products. Doesn’t that sound great?

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Although it may seem like the fastest method of building a list of numbers, it’s not the case. There are a lot of risks associated with purchasing mobile marketing lists which won’t generate sales:

They’re not well-targeted. It’s impossible to be sure that every person on the bought phone lists will pay attention to the emails you’ve sent or your company worldwide.

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It will help if you trust someone completely. When you purchase a mobile phone list, you’ll need to be able to trust your seller about how active the numbers are. It’s possible that the majority of the phone numbers you’re buying are not current or relevant.

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APAC Phone Number database

The design of the delivery SERVICE API 

Delivery Service must provide an API that allows the monolith to schedule, modify the delivery schedule, and also cancel it. As you’ve read throughout this guide the most effective approach is to use asynchronous messages since it encourages loose coupling and improves availability. One option is for Delivery Service to subscribe to Order domain events, which are published via the monolith. Based on the nature of event, it starts the delivery, revises it, and then can cancel the Delivery. One advantage of this strategy is the fact that the monolith does not need to explicitly call Delivery Service. The downside of using Domain events, is it demands Delivery Service to understand the impact of each Order event on the responding Delivery. APAC Phone Number business database free download

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APAC Phone Number quality lists

An alternative is to allow Delivery Service to implement a notification-based API that allows the monolith to clearly instruct Delivery Service to create, revise, or cancel delivery. Delivery Service’s API comprises a notification channel for messages as well as three types of messages: ScheduleDelivery, ReviseDelivery, or CancelDelivery. A notification message is a collection of the information required to be used by Delivery Service. For instance the ScheduleDelivery notification will include details about pickup times and the location as well as the delivery date and time. The main benefit of this method is Delivery Service doesn’t have detailed understanding of the lifecycle of an order. It’s solely focussed on dealing with deliveries, and does not have any knowledge about orders. 

It’s not the only method that Delivery Service and the FTGO monolith can collab-orate. They also have to exchange information.

HOW the Delivery Service ACCESSES FTGO Monolith’s DATA

Delivery Service needs to access the Courier information on location and availability that is managed by the monolith. Given that this is a huge amount of information and it’s not practical it for Delivery Service to continually call the monolith. Instead, a better approach is for the monolith to replicate the data to Delivery Service by publishing Courier domain events, CourierLocationUpdated and CourierAvailabilityUpdated. Delivery Service has a CourierEventSubscriber that subscribes to the domain events and updates its version of the Courier. It could also trigger change in the schedule of deliveries. APAC Phone Number business database free download

HOW FTGO Monolith ACCESSES THE SERVICE DATA

The FTGO monolith must be able to read the data that’s transferred onto Delivery Service, such as the Courier plans. The monolith could query the delivery service however, this would require extensive modifications for the monolith. In the moment it’s more convenient to keep your monolith’s domain model as well as database schema as is and to replicate the data directly from the server back onto the monolith. 

The simplest way to achieve this is to use Delivery Service to publish Courier and Delivery domain events. The service publishes a CourierPlanUpdated event when it updates a Courier’s plan, and a DeliveryScheduleUpdate event when it updates a Delivery. The monolith takes these domain events and then updates its database.

After we’ve examined ways in which both the FTGO monolith works and how the Delivery Service interact, let’s examine ways to modify the monolith.

Changes to the FTGO monolith to connect to Delivery Service

Many ways the implementation of Delivery Service is the easier component that extracts data. The modification of it to modify the FTGO monolith is a lot more challenging. Fortunately, replicating services’ data to the monolith can reduce the magnitude of the changes. However, we must alter the monolith to handle deliveries using the Delivery Service. Let’s take a look at how to accomplish that. APAC Phone Number business database free download

Define a DELIVERYSERVICE INTERFACE

It is the first stage to wrap the delivery management program using the help of a Java interface that corresponds with the API based on messaging described earlier. The interface, which is depicted in Figure 13.21 describes methods for scheduling, rescheduling and even cancelling delivery.
In the end we’ll be able to implement this interface using proxy servers that transmit notifications to the delivery system. In the beginning we’ll implement the API using a class that calls the management code for delivery. 

Its DeliveryService interface provides a coarse, granular interface that’s perfect for being implemented through the IPC mechanism. It defines the schedule() as well as schedule reschedule() as well as cancel() methods that correspond to the types of notification messages that were previously defined. APAC Phone Number id list

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REFACTORING THE MONUOLITH TO CALL the DELIVERYSERVICE INTERRFACE

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The next step, as the figure 13.22 illustrates, we have to determine all the locations within the FTGO monolith which invoke delivery management. Then, we need to switch them to the DeliveryService interface. This could be a long process and is among the most difficult aspects of extracting a service out of the monolith. 

It is certainly beneficial to write the monolith in a language that is statically typed like Java as the tools can do better at identifying dependencies. If not, it is likely you have automated tests that provide enough coverage of the areas of code that have to be modified. APAC Phone Number database free download

INSTALLING THE DELIVERYSERVICE’S INTERFACE

The last procedure is replacing the DeliveryServiceImpl class with a proxy class that will send notifications for the separate Delivery Service. However, rather than re-invent the existing implementation at once instead, we’ll employ the design that is illustrated in Figure 13.23 that allows the monolith to switch between the current implementation and the Delivery Service. The DeliveryService interface will be implemented. DeliveryService interface using the help of the dynamic feature toggle to decide whether to call the current implemen-tation and/or Delivery Service. APAC Phone Number database

Delivery

The use of a feature toggle greatly minimizes the chance that comes with rolling out Delivery Service. It is possible to deploy Delivery Service and test it. Once we’re confident that it’s working it, we can turn the switch to redirect users to the service. If we find it’s Delivery Service isn’t working as is expected, we can shift to the previous version.

About the feature switch

Feature toggles, also called feature flags, allow you to apply code changes without giving them out to users. They also allow you to alter the behaviour of the application by installing new code. This article written by Martin Fowler provides an excellent outline of the subject: 

After we’re confident we’re sure that Delivery Service is operating according to plan, we can remove Delivery Management from our monolith.

Delivery Service and Delayed Order Service are two examples of solutions which The FTGO team will create as they move towards an architecture of microservices. The next step after they have implemented these services is contingent on the needs for the company. One possibility is to take advantage of the Order History Service, described in chapter 7. The extraction of this service can eliminate the requirement to use Delivery Service to replicate data back to the monolith. APAC Phone Number database

After the implementation of Order History Service, the FTGO team is able to then take the services from the order listed in Section 13.3.2: Order Service, Consumer Service, Kitchen Service and the list goes on. When the FTGO team removes services, their maintenance-ability and the testability of their app increases, and their development speed is increasing. 

Prior to moving to a microservices architecture, you should ensure that the issues with your software delivery are the result of being outgrown by your monolithic architecture. It is possible to speed up delivery by optimizing the development process for your software.

It’s essential to transition to microservices gradually by creating an application called stran-gler. An application called a strangler is an application made up of microservices are built on top of the monolithic application you have already built. You must show value early and frequently to make sure that your business is supportive of the effort to migrate. 

An excellent way to introduce microservices to your architecture is to introduce the new capabilities as service. This allows you to quickly and effortlessly create a feature using modern process of development and technology. It’s a great method to demonstrate quickly the benefits of converting to microservices. APAC Phone Number b2b database

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buy APAC Phone Number targeted list

A way to split the monolith is by separating the front-end from the backend. This will result in two monoliths smaller. Although this isn’t a major improvement, it means that you are able to deploy each monolith separately. For instance for instance, the UI team to experiment more easily with the UI design, without the backend being affected.

The primary method of breaking up the monolith is to do so by gradual migration of function from the monolith to services. It is crucial to concentrate on removing those services that offer the greatest value. You can for instance speed up the development process if you select an application that has functionality which is actively being developing. buy APAC Phone Number database

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The latest services require interaction in some way with the monolith. The service will often need to connect to the monolith’s data and use its capabilities. The monolith may need to access the data of a service and then invoke its functions. To make this happen create an integration glue comprising inbound and outbound adapters within the monolith. 

To keep the monolith’s model model from infiltrating the domain model used by the service The integration glue must utilize an anti-corruption layer which is a software layer that converts into domain model. APAC Phone Number b2b database

One way to limit impacts on the monolith extracting data from a service is to copy the data moved to the service and then back to the monolith’s data base. Since the monolith’s schema has been not changed it is not necessary to make modifications to the monolith’s code base.

A service’s development often will require you to implement stories that involve the monolith. It can be difficult to create a compensatable transaction which requires large-scale changes of the monolith. In the end, you may need to be careful in the sequence of extraction of services in order to keep from imple-menting compensatable transaction in the monolith. APAC Phone Number database

If you are refactoring your application to a microservices-based architecture, it is necessary to also adapt to the monolithic application’s security system, that is usually built on an in-memory connection as well as an encryption mechanism based upon tokens that is used in the microservices. A simple way to do this is to alter the login handler of the monolith to generate a cookie with the security token. This is then forwarded to the services via an API gateway. API gateway.
Pricing based on usage–Unlike an ordinary IaaS cloud that charges per minute or hour for a container or VM even when it’s not in use, AWS Lambda only charges you for the resources which are used to process each request. APAC Phone Number b2b database

The deployment of a RESTful application using AWS Lambda along with AWS Gateway

The disadvantages of using lambda functions 

As you can observe the AWS Lambda is a very convenient method of deploying services however there are some important disadvantages and limitations

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Long-tail latency – Because AWS Lambda automatically runs your application, certain request have high latency as a result of the amount of time it takes AWS to set up instances of the app in order for it to be launched. This can be particularly problematic when using Java-based services since they generally take at most several seconds to get started. For instance, the lambda program described in the next section requires several minutes to get started. Therefore, AWS Lambda may not be appropriate for latency-sensitive applications. 

AWS Lambda is a limited, event-based programming system that isn’t designed to be used for the development of services that are long-running, like an application that receives messages from a third-party messaging broker.

Because of these drawbacks as well as limitation, AWS Lambda isn’t a suitable choice for all types of services. When choosing the right deployment model I would suggest first determining whether serverless deployment meets your business’s needs before considering other options.

Implementing a RESTful service with AWS Lambda along with AWS Gateway

Let’s examine the steps to deploy Restaurant Service using AWS Lambda. It’s a service that provides an REST API to create or managing restaurants. It doesn’t offer long-lasting connections with Apache Kafka, for example and is therefore a perfect match to AWS lambda. Figure 12.13 illustrates the deployment model for the service. The service is comprised of many lambda functions that are that are one per REST-based endpoint. AWS API Gateway AWS API Gateway is responsible for the routing of HTTP requests to lambda functions. APAC Phone Number database

Each lambda function is an request handler class. The ftgo-create-restaurant lambda function invokes the CreateRestaurantRequestHandler class, and the ftgo-find-restaurant lambda function invokes FindRestaurantRequestHandler. Because these request handler classes implement closely related aspects of the same service, they’re packaged together in the same ZIP file, restaurant-service-aws-lambda .zip. Let’s examine the design for the application, which includes the handler classes. 

The style for the AWS Lambda variant of Restaurant Service

The structure for the service as shown in Figure 12.14 It is very identical to an old-fashioned service. The primary distinction lies in the fact that Spring MVC controllers have been replaced with AWS Lambda request handler classes. Everything else remains unaltered. 

The service is comprised of a presentation tier comprised of request handlers which are called via AWS Lambda to handle the HTTP requests, as well as an typical business tier. The business tier consists of RestaurantService, the Restaurant JPA entity, and RestaurantRepository, which encapsulates the database.

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Let’s take a look at the FindRestaurantRequestHandler class. buy APAC Phone Number database

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THE FINDRESTAURANTREQUESTHANDLER CLASS

The FindRestaurantRequestHandler class implements the GET /restaurant/ endpoint. This class and the other request handlers are the leaf of the hierarchy of classes as shown in Figure 12.15. The base of this hierarchy is RequestHandler that is an element of the AWS SDK. Its abstract subclasses deal with the errors and also inject dependencies. 
Its AbstractHttpHandler Class is the abstraction base class used by HTTP request handlers. It is able to handle any unhandled exceptions that occur in the process of handling requests and returns the 500 – internal error message from the server. The AbstractAutowiringHttpRequestHandler class implements dependency injection for request handlers. I’ll describe these abstract superclasses shortly, but first let’s look at the code for FindRestaurantRequestHandler. APAC Phone Number database

Listing 12.9 shows the code for the FindRestaurantRequestHandler class. The FindRestaurantRequestHandler class has a handleHttpRequest() method, which takes an APIGatewayProxyRequestEvent representing an HTTP request as a parame-ter. It invokes RestaurantService to find the restaurant and returns an APIGateway-ProxyResponseEvent describing the HTTP response. APAC Phone Number b2c database

The handler class for GET /restaurant/

public class FindRestaurantRequestHandler

extends AbstractAutowiringHttpRequestHandler {

@Autowired

private RestaurantService restaurantService

@Override

protected Class? > getApplicationContextClass() { return CreateRestaurantRequestHandler.class;

@Override

It is the Spring Java Configuration class that you be used for the context of the application

protected APIGatewayProxyResponseEvent

handleHttpRequest(APIGatewayProxyRequestEvent request, Context context) {

Long restaurantId

{try You can try it. APAC Phone Number customers database

restaurantId = Long.parseLong(request.getPathParameters()

.get(“restaurantId”));
} catch (NumberFormatException e) { Returns a 400 – bad request
return makeBadRequestResponse(context); response if the restaurantId
is missing or invalid|The may be missing or not valid.|If is not present or is invalid,}

Optional possibleRestaurant = restaurantService.findById(restaur antId);

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APAC Phone Number address lists

Returns to either the
return possible restaurant restaurant or 404 error Not found response 
.map(this::makeGetRestaurantResponse)

.orElseGet(() -> makeRestaurantNotFoundResponse(context, restaurantId));

}

private APIGatewayProxyResponseEvent makeBadRequestResponse(Context context) {

}

private APIGatewayProxyResponseEvent

makeRestaurantNotFoundResponse(Context context, long restaurantId)

private APIGatewayProxyResponseEvent

makeGetRestaurantResponse(Restaurant restaurant)

}

As you will see, it’s similar to a service, however, it’s not the word “service”()

method, which takes an HttpServletRequest and returns HttpServletResponse, it has a handleHttpRequest(), which takes an APIGatewayProxyRequestEvent and returns APIGatewayProxyResponseEvent. APAC Phone Number database

Let’s take a look at its superclass that implements dependency injection.

DEPENDENCY INJECTION USING THE ABSTRACTAUTOWIRINGHTTPREQUESTHANDLER CLASS

A AWS Lambda function is not an application on the web nor is it an application using a main() technique. It would be a shame not have the ability to utilize the capabilities offered by Spring Boot that we’ve been familiar with. The AbstractAutowiringHttpRequestHandler class, shown in the following listing, implements dependency injection for request han-dlers. It creates an ApplicationContext using SpringApplication.run() and autowires dependencies prior to handling the first request. Subclasses such as FindRestaurant-RequestHandler must implement the getApplicationContextClass() method.

Listing 12.10 Abstract RequestHandler with dependency injection capabilities. 

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public abstract class AbstractAutowiringHttpRequestHandler extends AbstractHttpHandler 

private static ConfigurableApplicationContext ctx;

private ReentrantReadWriteLock ctxLock = new ReentrantReadWriteLock(); private boolean autowired = false;

protected synchronized ApplicationContext getAppCtx() { ctxLock.writeLock().lock();

Then, it creates an application’s Spring Boot application context just once
{try Try a

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APAC Phone Number database providers

If (ctx is greater than null) {If (ctx == null) 

ctx = SpringApplication.run(getApplicationContextClass());

}

return ctx

} finally { ctxLock.writeLock().unlock();

}

}

@Override

protected void
Injects dependencies into

the request handler employing

Autowiring prior to handling

the first request

beforeHandling(APIGatewayProxyRequestEvent request, Context context) { super.beforeHandling(request, context); if (!autowired) {

getAppCtx().getAutowireCapableBeanFactory().autowireBean(this); 

autowired = true APAC Phone Number customers database

|} Returns the @Configuration
class|A class is|The class that is} used to develop
ApplicationContext

protected abstract Class > getApplicationContextClass();

}

This class is a replacement for this class by overriding the beforeHandling() procedure that is defined by AbstractHttpHandler. This class’s beforeHandling() method injects dependencies via autowiring prior to processing the first request.

THE ABSTRACTTHTTPHANDLER Class

The request handlers of Restaurant Service ultimately extend AbstractHttpHandler as shown in Listing 12.11. This class implements RequestHandler. . Its primary duty is to detect APAC Phone Number business database

exceptions that are thrown while handling the request will give a 500 error.

Abstract RequestHandler that detects exceptions and sends an HTTP 500 response

Abstract class that is publically available. AbstractHttpHandler implements RequestHandler {

private Logger log = LoggerFactory.getLogger(this.getClass());

@Override

public APIGatewayProxyResponseEvent handleRequest( APIGatewayProxyRequestEvent input, Context context) {
log.debug(“Got request: {}”, input);

{try Try a

beforeHandling(input, context);

return handleHttpRequest(input, context);

} catch (Exception e) {

log.error(“Error handling request id: {}”, context.getAwsRequestId(), e); return buildErrorResponse(new AwsLambdaError(

“Internal Server Error”, “500”,

context.getAwsRequestId(),

“Error handling request: ” + context.getAwsRequestId() + ” “

+ input.toString()));

}

}

protected void beforeHandling(APIGatewayProxyRequestEvent request, Context context) { APAC Phone Number database

Do not do anything

}

protected abstract APIGatewayProxyResponseEvent handleHttpRequest( APIGatewayProxyRequestEvent request, Context context);
}

12.6.2 Packaging the service as a ZIP file APAC Phone Number business database

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buy APAC Phone Number database online

Before the service can be implemented the service must be packaged in a ZIP format. It is easy to create the ZIP file with the following task in Gradle:

task buildZip(type Zip) {Task buildZip (type: Zip)

from compileJava

from processResources

into(‘lib’) { buy APAC Phone Number database

from configurations.runtime

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This process creates a zip using the classes and resources at the top, as well as the JAR dependencies within the directories lib.

Now that we’ve constructed our ZIP files, lets take a look at how we can deploy Lambda’s function. 

Lambda functions are deployed using the Serverless framework

Utilizing the tools offered by AWS to set up lambda functions and set up the API gateway can be quite difficult. Fortunately there is using the Serverless Open Source project helps to make using lambda functions much easier. If you are using Serverless it is necessary to write an easy server-less.yml file that specifies your lambda function and the RESTful endspoints they connect to. Serverless then implements the lambda functions , and then creates and creates an API gate-way which redirects requests to them. APAC Phone Number Profile
The following list is an excerpt from serverless.yml which deploys Restaurant Service as a lambda.
Then, you can use to deploy serverless which scans the serverless.yml file, then deploys the lambda functions and then configures to use the AWS API Gateway. After a few minutes the service will become accessible through the API gateway’s URL for endpoint. AWS Lambda will provision as many instances of each Restaurant Service lambda function that are required to meet the demand. If you alter your code are able to easily modify the lambda’s code by re-building the zip file and then running serverless deployment. There are no servers to be involved! APAC Phone Number database

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APAC Phone Number id list

The growth of infrastructure has been amazing. A few years ago we used to manually deploy applications to physical machines. Nowadays the highly automated cloud infrastructures offer a variety of deployment options. One possibility is to use services to run virtual machines. Perhaps you can bundle services in containers and deploy them with complex Docker orchestration frameworks, such as Kubernetes. Sometimes, we forget about infrastructure completely and instead implement services using light lambda functions, which are ephemeral.

Choose the most light-weight deployment method that meets the requirements of your service. Examine the options according to the following order: containers, serverless virtual machines, serverless and packages that are language-specific. APAC Phone Number Profile

Serverless deployments aren’t always the best choice for every application, because of the lengthy latencies and the need to utilize an event-based or request-based programming model. If it’s a great choice, though, a serverless deployment can be a advantageous option as it removes the need to manage running sys-tems, operating systems and runtimes. It also offers automated elastic provisioning as well as price-based on requests. 

Docker containers, the simplest, OS-level technology for virtualization and are more flexible than serverless deployments and offer greater predictability in latency. It is recommended to use an Docker orchestration framework, such as Kuberne-tes that manages containers across several machines. The downside with containers is you need to control the operating systems and run-times. This is most likely to be it is the Docker orchestration framework as well as the VMs which run on.

The third choice for deployment is to run your service as in the form of a virtual machine. One thing to note is that the virtual machine is a heavy-duty deployment method, which means that the process of deploying is slow and will likely consume much more power than the first choice. On the other hand modern cloud services like Amazon EC2 are highly automated and offer a wide array of capabilities. This means that it might be simpler to set up an uncomplicated, small application with virtual machines rather than install the Docker orchestration platform. APAC Phone Number Profile

Implementing your services as specific language packages is usually not recommended unless you have only a few services. For instance, as discussed in the chapter 13 when you first begin your journey towards microservices, you’ll probably be deploying the services with the same method that you employ for your monolithic app, that’s the most likely alternative. You should only think about setting up a high-end deployment framework like Kubernetes after you’ve built certain services. APAC Phone Number leads

One of the advantages of using a service mesh — a layer of networking that mediates all network traffic into and out of services is that it allows you to create a service for production to test it and only later connect the production network traffic through it. Separating deployment from release increases the efficiency of releasing the latest versions of your services. 

Take on the role of Mary. You’re the one responsible for your FTGO application, which is a huge and old monolithic software. The company is very dissatisfied by the inability of engineering to provide features on time and with reliability. FTGO is experiencing a classic case in monolithic hell. Microservices appear, at a minimum at first glance to be the solution. Do you think it is appropriate to divert development resources from feature development in order to move to a microservice-based architecture? email marketing database

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In this article, I begin by explaining why you should think about refactoring your code to microser-vices. I also explain why it’s crucial to make certain that the problems you’re experiencing with your software development are caused by monolithic hell instead of the case of poor software development processes. I’ll then outline the best practices to incrementally change your monolith into an architecture of microservices. In the next section, I will discuss the importance of releasing improvements earlier and frequently in order to keep the business’s support. I explain the reasons to avoid investing in a highly developed deployment framework until you’ve developed some services. Then, I will outline the various ways you can utilize to incorporate services into your infrastructure, such as creating new features as service and removing features from the single-lith. APAC Phone Number database providers

What is the reason to refactor monoliths?

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Microservices have the following, as explained in the chapter 1 a myriad of advantages. It offers better maintenance testing, deployability, and testability which means it speeds up development. Microservices are flexible and increases the quality of fault isolation. It’s also easier to upgrade the technology stack. Refactoring a monolith to microservices can be a huge task. It is likely to divert resources from the development of new technologies. This means it’s likely that businesses will only accept the use of microservices only if it can solve the business’s biggest issue. APAC Phone Number database

If you’re in monolithic-hell there’s a good chance that you’ve already had at the very least one business issue. Here are a few examples of problems in business caused by monolithic hell

The application is slow to deliver, and it’s difficult to comprehend and maintain and to test, which means that the productivity of developers is not high. This means that the business is not able to compete effectively, and could risk being beaten by rivals. APAC Phone Number leads

Insufficient testing capability means the software released is frequently unstable. This can cause customers to be dissatisfied and leads to the loss of customers and lower revenue.

Insufficient scalability – Scaling a monolithic program isn’t easy because it mixes modules that have very different requirements for resources into a single executable unit. In the absence of scalability, it implies that it’s either not possible or expensive to expand an application above a specific amount. In the end, the application isn’t able to meet the needs of the present or anticipated requirements of the company. 

It’s crucial to make sure that the issues are present due to the fact that you’ve outgrown your technology. One of the most frequent causes for slow delivery times and faulty releases is a weak software development procedure. If, for instance, your current testing method is manual using automated testing on its own will significantly boost the speed of development. In the same way, you may be able to solve scaling issues without altering the architecture you use. It is recommended to first look at simple solutions. If it is the case, only if you have any issues with software delivery, you should move to the microservice model. Let’s take a look at how you can accomplish this. APAC Phone Number leads

Strangling the monolith

The process of transforming a monolithic application into microservices is a form of application modernization (https://en.wikipedia.org/wiki/Software_modernization). Modernization of applications involves changing an older application to one with an updated architecture and technology stack. The developers have been modernizing their applications for many years. This means that there’s a wealth of knowledge accumulated from experiences that we can apply in transforming an application to the microservices architecture. The most important thing we have gained over time is to avoid the big bang revision.

A big-bang rewrite occurs the process of creating a new application, in this instance microservices-based software. While beginning with a blank slate and leaving the old code base in place sounds attractive however, it’s extremely risky. It most likely to end in failure. You’ll spend several months, if not years, duplicateding the functionality that is already in place until you incorporate the features your business requires in the present! In addition, you’ll have to build the application from scratch regardless, which diverts your efforts towards the redesign process and creates an unending goal. It’s also possible that you’ll spend time and effort reimplementing features which don’t need to be implemented. As Martin Fowler reportedly said, “the only thing a Big Bang rewrite guarantees is a Big Bang!” (www.randyshoup.com/evolutionary-architecture). APAC Phone Number listing

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Instead of doing a huge flash rewrite, it is better to follow the steps as the figure 13.1 shows, incrementally change the structure of your application that is monolithic. It is then possible to build a brand new application, also known as a strangler app. It is comprised of microservices that are run in tandem with the monolithic app. As time passes the functions implemented by the monolithic app decreases until it completely disappears or it is replaced by a microservice. This approach is like maintaining your car while driving through the streets at 70 speed. It’s not easy, but it’s much less risky than trying the big bang change. 

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Martin Fowler refers to this application modernization strategy as the  The name comes from the strangler vine (or strangler fig–see https://en.wikipedia.org/wiki/ Strangler_fig) that is found in rain forests. A strangler plant can be found around a tree to get sunlight that is above the canopy of the forest. Most often, the tree dies due to either being destroyed by the vine, or it dies due to an old age leaving behind a tree-shaped vine. APAC Phone Number database providers

Pattern: Strangler application

Modernize an application by gradually creating a different (strangler) application on top of the existing application. See http://microservices.io/patterns/refactoring/ strangler-application.html. APAC Phone Number database

Refactoring can take months or even years. For example, according to Steve Yegge (https://plus.google.com/+RipRowan/posts/eVeouesvaVX) it took Ama-zon.com a couple of years to refactor its monolith. If you have an extremely large system, it could take a long time to be able to complete the process. For instance, you could arrive at the point that you need to complete things that are more important than separating the monolith. For instance, developing the features that generate revenue. If the monolith doesn’t pose a barrier to development in the future then you can just leave it alone. APAC Phone Number listing
ASSESS VALUE EARLY, IF NOT QUICKLY.

A major benefit of incrementally refactoring into microservices is that you can get immediate returns on your investment. This is different from the big bang rewrite which isn’t a benefit until it’s completed. If you are incrementally refactoring your monolith, you are able to create every new service with the latest technology stack as well as a contemporary, high-speed DevOps-style of development and delivery procedure. This means that your team’s speed of delivery increases with time. 

Furthermore, you could transfer the areas that are of high value in your application first to microservices. Imagine, for instance, that you’re working on an FTGO application. A company might, for instance consider it is the algorithm for scheduling deliveries provides an essential competitive advantage. It’s likely that the delivery management will be a subject of constantand continual improvement. In transforming delivery management into an independent service the delivery management team will be able to operate independently of team of FTGO development team and greatly improve their development speed. They’ll have the ability to frequently implement different versions of their algorithm and test the effectiveness of their algorithm. APAC Phone Number listing

Another advantage of being able deliver value earlier is the ability to retain the support of the business to the process of migration. Support for the ongoing migration effort is vital since the effort to refactor means that less time is spent designing new features. Certain organizations are struggling to eliminate technical debt due to previous attempts that weren’t enough and did not bring much value. This is why businesses are unwilling to continue investing in cleaning efforts. Refactoring in a gradual manner to microservices ensures that the team developing it is able to show value quickly and frequently.

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The shouldFindOrder() test method first configures the OrderRepository mock to return an Order. It then makes an HTTP request to retrieve the order. Finally, it checks that the request was successful and that the response body contains the expected data.

Controllers aren’t the only adapters that handle requests from external systems. APAC Phone Number lists

There are also event/message handlers, so let’s talk about how to unit test those. 

Writing unit tests for event and message handlers

Services often process messages sent by external systems. Order Service, for example, has OrderEventConsumer, which is a message adapter that handles domain events pub-lished by other services. Like controllers, message adapters tend to be simple classes that invoke domain services. Each of a message adapter’s methods typically invokes a service method with data from the message or event.

We can unit test message adapters using an approach similar to the one we used for unit testing controllers. Each test instances the message adapter, sends a message to a channel, and verifies that the service mock was invoked correctly. Behind the scenes, though, the messaging infrastructure is stubbed, so no message broker is involved. Let’s look at how to test the OrderEventConsumer class. email marketing database APAC Phone Number

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Listing 9.7 shows part of the OrderEventConsumerTest class, which tests Order-EventConsumer. It verifies that OrderEventConsumer routes each event to the appro-priate handler method and correctly invokes OrderService. The test uses the Eventuate Tram Mock Messaging framework, which provides an easy-to-use DSL for writing mock messaging tests that uses the same given-when-then format as Rest Assured. Each test instantiates

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