Node.js Client-Side Prerequisites

To practically utilize the powerful features of client-side NCache with your Node.js client, make sure to implement the prerequisites discussed below.

Node.js Client Prerequisites

• Node.js

• Install and include either of the following modules in your Node.js client application:
  • Enterprise: ncache-client
  • Professional: ncache-professional-client
• Include the following class in your application:
  • Cache
• The cache must be running.
• The application must be connected to cache before performing the operation.
• For API details refer to the links provided with every code snippet.
• To ensure the operation is fail-safe, it is recommended to handle any potential exceptions within your application, as explained in Handling Failures.
• To handle any unseen exceptions, refer to the Troubleshooting section.

Feature Specific Namespaces

Aside from the namespaces employed in most features, you should add the following namespaces/packages/classes in your Node.js client application based on the feature/API you intend to use.

Note

Any feature not mentioned in the list below either does not work with the specified feature or only requires the general namespaces/packages/classes.

• Node.js

• For Tags & Named Tags, and Expirations:
  • Tag
  • NamedTagsDictionary
  • Expiration
• For Cache Data Dependencies e.g. KeyDependency, FileDependency, and Database Dependencies:
  • KeyDependency
  • SqlCacheDependency
  • OracleCacheDependency
  • FileDependency
• For Data Structures:
  • Counter
  • DataStructureManager
  • DistributedList
  • DistributedQueue
• For Event Notifications and Continuous Query:
  • EventCacheItem
  • ContinuousQuery
• For Pub/Sub:
  • Topic
  • TopicSubscription

See Also

Create Cache
Connecting to Cache
Add Data to Cache