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Introduction - C Client

The Aerospike C client allows you to build C applications to store and retrieve data from the Aerospike cluster. The C client is a smart client that periodically pings nodes for cluster status and manages interactions with the Aerospike cluster. The C client supports both synchronous and asynchronous command models.

Supported Platforms

The C client is currently available on the following 64-bit platforms:

  • Linux
  • MacOS
  • Windows

Aerospike provides certified packages for the following platforms:

  • Redhat/CentOS 7, 8
  • Debian 9, 10, 11
  • Ubuntu 18.04, 20.04
  • MacOS 10.9+
  • Windows 7+

These certified packages are available for download in Released Packages. It is also available in source code form on Aerospike C Client Github.


The following example writes a record to the Aerospike Server:

as_error err;
as_config config;

config.hosts[0] = { .addr = "", .port = 3000 };

aerospike as;
aerospike_init(&as, &config);

aerospike_connect(&as, &err);

as_key key;
as_key_init(&key, "test", "demo_set", "test_key");

as_record rec;
as_record_inita(&rec, 2);
as_record_set_int64(&rec, "test-bin-1", 1234);
as_record_set_str(&rec, "test-bin-2", "test-bin-2-data");

aerospike_key_put(&as, &err, NULL, &key, &rec);