TAILIEUCHUNG - How to Do Everything with Web 2.0 Mashups phần 9

Mỗi hoạt động có các tham số của nó có thể được yêu cầu hoặc tùy chọn. Đối với ItemSearch, khác hơn so với các thông số hoạt động cần thiết, các tham số yêu cầu SearchIndex, trong đó quy định cụ thể Amazon cửa hàng bạn muốn tìm kiếm sách, phim, điện tử,. | Simpo PDF Merge and Split Unregistered Vers on P httpi wwwsimflOiPd . Oim 247 Use API Explorer FIGURE 16-4 The bottom of the API Explorer page is shown in Figure 16-6. The last two arguments are useful for testing and for implementation too . You can limit the number of photo returns per page that is in the photos XML element . You can also specify which page to retrieve. Note the page argument does not specify the number of pages to retrieve but which of the various computed pages is retrieved. Go to the API Explorer page for 16 FIGURE 16-5 248SimpHoFWDdrDM ergsything SphtWb reg iMssteqbVersion - http Set the signing options and call the method FIGURE 16-6 These arguments are specific to . At the bottom of the list you specify how you want to sign the request and then you can click the Call Method button. If a request does not need authentication you do not need to sign it so use the Do not sign call option as shown in Figure 16-6. When you call the method the area beneath the button is updated to show you the results of the call as shown in Figure 16-7. This is similar to the example response you saw on the basic API page but this is the actual result of the call you just generated. You can change argument values and call the method over and over to see how it behaves. At the bottom of the page the actual call to the method is shown. You can copy and paste it into your code or use it as the base of a function in PHP. Here is a sample function to create a Flickr call such as the one shown here. It breaks up the construction of the call into several readable lines which you can use exactly as shown here. As indicated a variable theKeywords is used just as it was used in the previous chapters to pick up data stored in the form s request. This is passed into this function s call. Also the final link specifies the number of photos per page and the page to display. You can omit this line if you want. function .

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