Using the Developer Application in Java

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Using the Developer Application
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The Facebook Developer application allows you to create new Facebook applications and manage existing applicationsTo start the process of creating the Compliments application, you need to add the Facebook Developer application to your Facebook account
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Log in to Facebook and go to wwwfacebookcom/developers Click Allow to authorize the Facebook Developer application (see Figure 61)
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Authorizing the Facebook Developer application
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After you install the Developer application, you are taken to its canvas page Click the Set Up New Application button in the top right of the page Figure 62 shows its location
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Creating a new application with the Developer application
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The next screen, shown in Figure 63, prompts you to name your new application Facebook does not allow application names to be longer than 50 characters, and it also requires that the names do not contain the following words: face, poke, or wallThe name also must not be too much like any of the names of the default applications that Facebook provides, such as Photos,Videos, and NotesAs discussed in 2, Making Great Applications, Facebook does not require unique application names, but it does require that the Canvas Page URL for each application be unique (More on that later) For now, enter the name Compliments in the Application Name field, and check the radio button that states that you agree with the Facebook Terms of ServiceThen, click Save Changes
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Naming the Compliments application
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Notice the tabs along the left side of Figure 64These correspond to the different groups of settings for the Compliments applicationThe following sections cover each of these tabs and the relevant settings for Compliments Be aware that at the bottom of each of these tab pages is a Save Changes buttonYou can either save the changes you made to each page before clicking another tab or click it after you edit all the tabs Warning
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If you browse away from this page without clicking the Save Changes button, your changes are not saved
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Basic Settings Tab
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Using Figure 64 as a reference, this section goes through each setting on the Basic Settings tab Essential Information The first and most important things to note on the Compliments application settings page are the Facebook-provided Application ID, API Key, and Secret key 3, Platform Architecture Overview, discusses their importance Make sure that you keep these values safe
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Using the Developer Application
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Compliments application s Basic Settings tab
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Application Description The Application Description field is displayed in the Facebook Application Directory (which 14, Measuring Application Success, covers) and is shown to new users before they add or authorize the application It s limited to 250 characters and must be plain textYou don t need to worry about setting this field at the momentThe application is not going to be added to the Application Directory until it is complete For now, it s only going to be installable by people you specify Application Icon and Logo Application icons are used in the following areas: the Applications menu,Application Settings pages, and in the Allow Access authorization dialog Icons are limited to 16 16 pixels in size Many times, the application icon will not be rendered on a white background, so Facebook recommends that developers use transparent GIF images for all application icons PNG images also allow transparency, but they are not supported by all browsers (notably Internet Explorer 6) The application logo is shown, obviously, in the Application Directory It has a maximum size of 75 75 pixels and can be in GIF, JPG, or PNG format If either of these images is larger than their allowed dimensions, they are automatically resized to fit and converted to GIF format Image files you upload to Facebook for either the icon or the
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logo must be under 5MB in size For the Compliments application, we chose a gold star image, but you can upload whatever you like Language The Language setting allows you to set a native language for your application For Compliments, leave it set to English Developers Developers are other Facebook users that are allowed to modify the application settings You must be friends with them on Facebook in order to add or remove themTo add a new developer, type her Facebook name in the field provided, and she is added to the Developer listThis list is critical because, along with Sandbox mode, which is covered later, it restricts who can install your application until you release it Tip
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Always try to add more than one account as a developer for your applications Otherwise, if you lose access to your Facebook account, you also lose access to your Facebook applications
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Application Contact Information The Developer Contact Email is only visible to Facebook employees and is used to contact the application developer, if needed Facebook contacts developers using this address, usually if an application has complaints against it or violates the Facebook Terms of ServiceThe User Support Email is available to your application s users when they want to contact you from your application s Help or About pages Both of these addresses are required and default to the email address the application creator used when signing up for Facebook Both can be changed if desired, but leave them as their default values for Compliments User-Facing URLs The Help, Privacy, and Terms of Service URLs can give custom URLs for applicationspecific help, privacy, and Terms of Service, if desired For Compliments, leave these fields blank If you set the Terms of Service URL, users will be prompted to accept your custom Terms of Service before they authorize the applicationThis is important in cases where legal liability might be involved If you don t provide URLs for these, the Facebook Help, Privacy, and Terms of Service pages are used