Class MomentoCache

A cache that uses Momento as the backing store. See https://gomomento.com.

Example

const cache = new MomentoCache({
  client: new CacheClient({
    configuration: Configurations.Laptop.v1(),
    credentialProvider: CredentialProvider.fromEnvironmentVariable({
      environmentVariableName: "MOMENTO_API_KEY",
    }),
    defaultTtlSeconds: 60 * 60 * 24, // Cache TTL set to 24 hours.
  }),
  cacheName: "langchain",
});
// Initialize the OpenAI model with Momento cache for caching responses
const model = new ChatOpenAI({
  cache,
});
await model.invoke("How are you today?");
const cachedValues = await cache.lookup("How are you today?", "llmKey");
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