PayPal IPN – Creating Listener Code to Process IPN Messages

You have finally decided IPN is the solution to your website application. You do not want to pay someone else to do it. It can not be that hard, can it? Where can you get some practical advice from people who have been there, done that. This article will answer these questions and help you decide if you are able to write that code. If you find it too complicated there are a few commercial products out there that will handle everything for you so do not lose heart if you find yourself stuck.

PayPal IPN

Instant Payment Notification is better known as PayPal IPN and is PayPal's interface for handling real time confirmation of purchases. A typical use for IPN is where you want to use the software to download.

PayPal provide 3 different types of account. Personal, Premier and Business. You will need Premier or Business to use IPN.

Listener

PayPal IPN messages are not synchronized with actions on your website. You detect IPN messages from PayPal with a piece of code known as a listener.

You specify the URL of your listener in your PayPal account's profile but you can override this for specific transactions when you setup a button or API operation. You can also temporarily turn off the sending of IPN messages, useful if your site is down for maintenance. They are still generated and stored until you switch sending back on again.

You must perform a number of checks on the IPN message received from PayPal.

  • Check the email address to make sure it is yours
  • Check that you have not already processed the transaction identified by the transaction ID
  • Make sure that the transaction's payment status is "completed"
  • Verify that the payment amount actually matches what you intend to charge

PayPal Sandbox

When you are developing your website you really do not want to be trying to get it working by experimenting on a real money system. Any early bugs in the system could leave security holes but even if you write perfect code it is best not to do your testing using real money.

PayPal provides what they call a sandbox, almost identical to the live PayPal system. You can setup fake customers with fake money and make as many test purchases as you want. The perfect system to fully test your web application.

There is a Sandbox Forum on the developer network. It's a great place for advice.

Testing your Listener

The Sandbox has an excellent IPN Simulator (under Test Tools) which lets you choose the transaction type, fill in all the parameter values ​​and send a test IPN to a specified address.

IPN History

PayPal provides an IPN history page under the My Account tab. Click on History to see it. It includes everything you want to know about each IPN message including the following Status values.

  • Sent: indicates that PayPal sent the message to your IPN listener
  • Failed: indicates that PayPal did not receive an acknowledgment to the message
  • Queued: indicates that PayPal is ready to send the message
  • Retrying: indicates that message was resent between 1 and 15 times and PayPal continues to be resend the message
  • Disabled: indicating that the message will not be resent because the merchant's account has been disabled

Conclusion

The best place to search for information is the PayPal Integration Center which has guides, code and links for everything to do with integrating your website with PayPal.

The one place you MUST visit is the PayPal IPN Forum on the developer website. As well as a constantly changing list of discussion topics about IPN, there are some good sticky posts about troubleshooting tips, IPN variables, template code etc.

PayPal IPN is a difficult subject but the combination of an excellent testing environment in the form of the sandbox and the good quality advice provided through the forums should make it possible for you to get your website application up and running.

Smart Clothing Tips Each Woman Will Appreciate

It's not a secret that women always wish to look attractive and stylish. It does not matter where they go and what they do, they need to feel confident and beautiful. This does not only help them remain in the focus of men's attention, but also makes it easier to reach the goals they have set. The choice of clothes and accessories to be included into the wardrobe of each woman depends upon many factors, such as her body type, style of clothes she prefers, personal traits of character, age, occupation and what not. However, there are effective fashion tips that will ideally work for each lady, who aims at looking appealing, sexy and gorgeous. Some of these smart tips are provided below.

  1. Old Apparel Never Goes Out of Style!

Do you believe that you should get rid of those attires you have worn for two or three years? Do you think that they are not trendy anymore? If so, then you may be mistaken! Many old things do not go out of fashion and remain trendy for years. Just have a look at the apparel you have in your wardrobe! What clothes seem too old-fashioned to be worn every day? Which of them would you eagerly purchase, if you were in a fashion boutique? These simple questions will help you make the right choice!

  1. Choose the Right Outfit for the Black-Tie Event

Have you been invited to visit a black-tie event? Is your best friend or close relative getting married soon and you do not know what to wear? Do not get into despair and take your time to shop wisely! There is no need to buy a luxurious dress for one night only. Instead, give preference to the attire you may put on when visiting holidays and festivals in the future. This will make the purchase both efficient and gorgeous. Do not forget about suitable shoes, accessories and underwear! These things will make you feel confident and beautiful wherever you go, while proper makeup and hairstyle will contribute to your charming appeal!

  1. Know Your Strong Points

The best way to choose clothes that will really work for you is to know your strong points. One and the same apparel may look differently on two women just because they have different body types. It may take some time to experiment with different types of apparel and accessories to make the best choice, but the result will be worth this time and effort. By knowing your strong points, you will be able to opt for clothes that make you look stylish and chic. Likewise, you will avoid clothes that have negative impact upon your appeal and underline your imperfections.

  1. Do not Forget About Jeans!

When thinking about your wardrobe, do not forget about jeans. There are no stylish collections of clothes without this item. You can wear jeans in the everyday life just to feel comfortable. They are a nice choice for a family picnic, a night with your friends, a trip to the forest and even a romantic weekend. Just make sure you choose the right size. If you have any doubts, then give preference to the smaller size, because they will stretch with the lapse of time. By the way, if your jeans look a bit old-fashioned or you just wish to give them a brand new look, then you can decorate them with versatile gems and other accessories you will find any local garment accessories shop. A bit of imagination will help you get nice-looking and fashionable jeans!

  1. Watch Out Deodorant Stains!

It's not a secret that deodorant stains look unappealing and sometimes even disgusting. Furthermore, they are very hard to wash sometimes, which means that they can easily spoil your attire. It does not matter how stylish and expensive your new dress or blouse is – deodorant stains will give it an unattractive look. The same concerns makeup stains. If you have noticed the problem, try to wash the piece of clothing as soon as you can. If washing the stains with water does not help, then add the detergent or stain remover into water, leave it there for several hours and give it another try. This should help get rid of the problem.

  1. Do Not Underestimate the Importance of Scarves and Belts

Accessories always contribute to the way you look. This especially concerns scarves and belts that come in different colors, models, shapes, sizes and materials. You can choose several of them to fit your clothes. When chosen properly, these accessories add style, grace and elegance to your appeal.

  1. Keep Your Clothes in Order

It does not matter how many clothes and accessories you have, you should always keep them in order. Having bought an article of clothing you have been looking for, take your time to read the instructions on the label to know how to take care of it properly. This will not take much time, but will help you maintain the nice look of your apparel for a long time.

Why Illustrations Are Important to Everyone

Not everyone is blessed with the gift of speech or writing. At the other end of the line, it is also true that not everyone has the capacity to fully understand what they are listening or reading about. There lies the need to bridge the gap of these two groups of people. The solution is to include illustrations.

Illustrations are basically visual representations of whatever is being said or written. It helps in conveying the message to whoever it is intended to.

There was a time when you had to listen or to read properly in order to get the message. Those relaying the message knew as well that there was no other way, and they had better do something about it. However, starting in the nineteenth century, several technological advances became available to make everything more visual.

This has continued today, and as a result, more people are less acute to reading long paragraphs or hearing winded statements. If a person sees several hours in a computer or television, chances are, he or she is part of a large group who would respond better with illustrations.

Graduate students tag along drawings and figures so that their presentations can be given better-than-average marks. Entrepreneurs pitch their ideas to investors by including sketches and flowcharts for their ideas. Businesspersons expound and arrive to concluding by showing graphs together with their reports.

Reports around the world have become much easier on the eyes today, thanks to presentation software. With programs like Microsoft PowerPoint, it became possible to improve one's message through animation, graphics, and video.

In general, it became apparent that illustrations would become more popular with the advent of computers. Creating flowcharts, plans, and entire designs became quicker to produce and easier on the budget. Today, illustrations appear in different forms together, and all are able to convey a message.

Computers even put to rest some issues. Some might ask, Is a table of values ​​an illustration? In some respects, it is because it provides an easy comparison for the audience. However, one can argue that there's a lot of people who have an aversion to numbers as much as those with little attention span. We now know that it's better to simply convert a table into a graph, so that trends can easily be seen.

Today's challenge is to reduce the number of misleading and outright false message using illustrations. It seems that everyone wants to capitalize the public's need for visuals that they simply hide imperfections behind illustrations or simply put them in fine print. In almost all media, people are bombarded with claims that are supported with illustrations or graphs. The problem is that such illustrations do not represent the actual features of a product. There have been a lot of consumers who are being enticed by things that they see only to find out they are not getting what they expect from it.

Traveling With a Toddler – 5 Tips to Keep You Sane!

Traveling can be taxing and difficult on its own, nonetheless, traveling with a toddler. In order to ensure a good, fun, and happy trip, here are a few helpful tips!

1. Bring A Special Bag

My daughter is currently obsessed with Dora and Diego. So in preparation for a recent trip, we purchased a Diego backpack for all of her toys. Not only was my daughter thrilled with the backpack, but she was also able to wear it while traveling, so freeing my hands for something else!

2. Pack Lots of Toys and Drawing Supplies

Being prepared is the key for pleasant travels. You can never have enough books, coloring books, crayons, stickers or toys for a toddler. To make sure that it's really special and new, start buying supplies in advance. That way there is extra excitation and eagerness to read a new book or use new crayons. A great place to find inexpensive and small items is the Dollar Store.

3. Bring the Favorites

A great tip I learned from a season mom is to start putting away favorite toys before a trip and then re-introduce while traveling. Not only are the kids excited to see the toy, but you already know they will happily play with it!

4. Do not Forget The Snacks

Food and drinks are always a necessity while traveling. Juice boxes and goldfish are an essential; however, bringing new items may also work. Try making trail mix and have two bags … one for the trip there and one for the way home. And be prepared, if you are flying, security may seize your opened containers. I found that they allowed my daughter's sippy cup with juice, but that might not be the case at all airports. Bottom line, have a "plan B" in place!

5. Maintaining A Schedule

Although you're on vacation, following your typical schedule and routine can be comforting to a toddler. If your child is use to taking a daily nap, do everything in your power to maintain that schedule. Otherwise, you could be vacationing with a cranky and unpleasant child … which is not relaxing or fun!

Traveling with a toddler can be lots of fun, but be sure to plan ahead. Be prepared and expect the unexpected! If you can roll with the punches, everyone is sure to have a great time!