Traffic Server Software Developers Kit

The cache API enables plugins to read, write, and remove objects in the Traffic Server cache. All cache APIs are keyed by an object called an INKCacheKey; cache keys are created via INKCacheKeyCreate; keys are destroyed via INKCacheKeyDestroy. Use INKCacheKeyDigestSet to set the hash of the cache key.

Note that the cache APIs differentiate between HTTP data and plugin data. The cache APIs do not allow you to write HTTP docs in the cache; you can only write plugin-specific data (a specific type of data that differs from the HTTP type).

Example:

    const unsigned char *key_name = "example key name";

    INKCacheKey key;
    INKCacheKeyCreate (&key);
    INKCacheKeyDigestSet (key, (unsigned char *) key_name , strlen(key_name));
    INKCacheKeyDestroy (key);