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Desk Phone API features described in this section are deprecated and supported only on the following models: D40, d45, d50, d60, d62, d65, d70 |
You can develop your app so it uses generic settings, or settings that are specific to each phone. If you have phone-specific settings, you can choose to store them in the phone's config file, or have the user enter the settings via your app. This guide discusses how to choose the best solution for your app.
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The following example uses the digium.readFile and digium.writeFile methods to store local settings.
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/* Here are two simple functions for working with JSON / and a JavaScript object to store some settings information. We use the readFile and writeFile method to store a string and use the native JSON JavaScript object to parse and stringify it. */
//settings object passed in, let's assume it looks like {"name" : "Bob", "location" : "USA"}
function saveSettings (settings) {
var settingsString = JSON.stringify(settings);
//write our settings in non-volatile storage so they are preserved.
digium.writeFile("nv", "my_app_settings.json", settingsString);
}
function readSettings () {
var settings = {};
// we wrap loading this file in a try catch because we are not sure if it exists yet or not.
// if it doesn't the app engine will throw an exception halting execution.
// this is also why we initialize the settings object above.
// If this errors we will return the empty object
try {
var settingsString = digium.readFile("nv", "my_app_settings.json");
settings = JSON.parse(settingsString);
} catch (error) {
util.debug("my_app_settings.json file does not exist yet");
}
//return our settings object
return settings;
} |
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