These APIs can be accessed through the HTTP protocol. Web APIs provide services such as web notification and storage. Therefore, the external systems call API providers and access the services. The function of the API is to enable the API provider to expose the services. It connected the computer networks in that limited area.ĪPI has a bright future with users and programmers all over the world are using and creating apps that are hosted on the World Wide Web. It was first used to provide a service for a limited area. The existence of the API can be traced even before the introduction of the World Wide Web and the Internet. The World Wide Web also encouraged the new way of delivering the software and built the infrastructure to accommodate the new system. It began the SaaS Revolution, which emphasised software as a service concept. In the 1990s the Salesforce launched the web-based API that acted as the sales automation tool. The only difference has been the way in which the API was accessed and implemented. The implementation of API has seen various transformations over the years. The concept of the API has been there since an early age. The specification or implementation both are known as the API. If a computer system meets these standards, then it is said to expose an API. The API specifications are the standards or documents designed to describe the creation of such connections. It is the interface that serves the other parts of the software. API connects two devices or programs in order to facilitate the exchange of information between them. It is the software responsible for the connection for the communication and information exchange between two apps. What is an API?ĪPI is the abbreviation of the term Application Programming Interface. Application Programming Interface (API) is used to communicate between apps and to access and fetch the required information. The purpose ranges from simply sending a message to checking cricket scores online. Today, we use mobile apps for almost all purposes. Provide code for second section for visitors in first variant.Next → ← prev API - Application Programming Interface Provide code for second section for visitors in the original. Provide code for first section for visitors in first variant. Provide code for first section for visitors in the original. $('#my_element').text('Hello from variant 2') įor MVT experiments the value that will be provided from your experiment will include the indexes for all section variants separated by dash ("-"). Assuming that you have jQuery in your page So if you need to modify elements on your page, you may need to check for the state of the page and register your implementation to run later, as an event handler of the DOMContentLoaded event (or use something like jQuery.ready if you have jQuery in your page). You can register an implementation callback for an experiment with a specific identifier (that you can find in the experiment details page).Īnother important factor that you need to have in mind, is that your callback may be invoked before the full DOM tree has become available. Provide code for visitors in section variant. Provide code for visitors in first variant. Provide code for visitors in the original. Not required if the Google Analytics gtag implementation is used.įunction gtag() installation or the initialization of the dataLayer variable. Should be used in scripts placed after the Optimize or GTM Instead you need to provide your implementation as a callback: Even if things seem to work sometimes, the order of execution is not guaranteed. So it is not possible to check for the inclusion of an experiment from synchronous code. Keep in mind though that you will need to implement your own flicker prevention mechanism, since your JavaScript may be called after the page has become visible to a visitor.Īn important factor that you need to have in mind is that Optimize is loaded asynchronously. Using the Optimize client API, you may provide your own experiment implementation based on JavaScript code that is provided by your own site, and skip using the Optimize editor altogether.
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