Image cache for session replays of mobile applications

A system comprising:

• a processor;
• and
• a memory storing instructions that, when executed by the processor, configure the system to perform operations comprising:
• receiving, from a first client device, a set of requests for recording user activity detected on a mobile application executing on the first client device, wherein each request includes information corresponding to a set of events based on the user activity that has occurred on the mobile application;
• determining that a first request from the set of requests includes an image and a hash of the image;
• storing the image and the hash of the image in a cache;
• determining that a second request from the set of requests includes the hash of the image, the second request being different than the first request;
• generating, using the hash, a uniform resource locator (URL) that is utilized to retrieve the image in the cache;
• retrieving, based on the generated URL, the image from the cache;
• generating a markup language element based at least in part on the retrieved image from the cache;
• transforming a set of nodes of a document object model (DOM) having a particular attribute into a first tag with a first attribute, the first attribute including the generated URL and the hash;
• transforming, during unserialization of a serialized DOM, each instance of the first attribute from the serialized DOM to the generated URL and the hash;
• and
• accessing, using the generated URL and the hash, the image from the cache, the accessing occurring during a replay of a user session by a session player, the user session including the set of events based on the user activity that occurred on the mobile application.

A non-transitory computer-readable storage medium, the computer-readable storage medium including instructions that when executed by a computer, cause the computer to perform operations comprising:

• receiving, from a first client device, a set of requests for recording user activity detected on a mobile application executing on the first client device, wherein each request includes information corresponding to a set of events based on the user activity that has occurred on the mobile application;
• determining that a first request from the set of requests includes an image and a hash of the image;
• storing the image and the hash of the image in a cache;
• determining that a second request from the set of requests includes the hash of the image, the second request being different than the first request;
• generating, using the hash, a uniform resource locator (URL) that is utilized to retrieve the image in the cache;
• retrieving, based on the generated URL, the image from the cache;
• generating a markup language element based at least in part on the retrieved image from the cache;
• transforming a set of nodes of a document object model (DOM) having a particular attribute into a first tag with a first attribute, the first attribute including the generated URL and the hash;
• transforming, during unserialization of a serialized DOM, each instance of the first attribute from the serialized DOM to the generated URL and the hash;
• and
• accessing, using the generated URL and the hash, the image from the cache, the accessing occurring during a replay of a user session by a session player, the user session including the set of events based on the user activity that occurred on the mobile application.