Provide an interface for external software to utilize CloudI's scalability, fault-tolerance, messaging, dynamic configuration, and other features.

• ATS2/Postiats >= 0.3.13
• C
• C++
• Elixir
• Erlang >= 22.0
• Go >= 1.11
• Haskell (GHC >= 8.6.0)
• Java
• JavaScript/node.js >= 0.12.18
• OCaml >= 4.08.0
• Perl >= 5.10 (with Compress::Zlib)
• PHP >= 7.0
• Python >= 2.7.0
• Ruby >= 1.9.0
• Rust >= 1.66.1

C/C++, Go, Haskell, Java, JavaScript, OCaml, Perl, PHP, Python, Ruby, and Rust all have an implementation of the CloudI API that is completely done in that programming language (to avoid extra complexity). ATS uses the C CloudI API to add more type information in the ATS CloudI API. A separate Python/C CloudI API uses the C++ CloudI API to provide more efficiency (when using the cloudi_c Python module instead of cloudi). Any use of the CloudI API in these programming languages (that are not running in the Erlang VM, i.e., "external" services) is executed as separate OS processes with separate threads (using any native threading library) with CloudI as the application server.

Erlang (or Elixir) integration uses the cloudi_service behavior to create "internal" CloudI services. Typically, the module name implementing the cloudi_service behavior is built as an Erlang/OTP application with the same name.

An example SWIG interface file is provided based on the C CloudI API in cloudi.i. SWIG could be used to create a CloudI API for Lua, R, D, etc.

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count (C, no threads) Basic Count Test
• src/tests/http_req (C, no threads) Basic HTTP Request Test
• src/tests/msg_size (C++, no threads) Basic Message Size (Forwarding) Test
• src/tests/messaging (C++, threads) Basic Messaging Test
• src/tests/null (C, no threads) Basic Null Response Test
• src/tests/hexpi (C++, threads) Hexadecimal PI Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test
• Hexadecimal PI Fault-Tolerant Map/Reduce Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

• src/tests/count Basic Count Test
• src/tests/http_req Basic HTTP Request Test
• src/tests/msg_size Basic Message Size (Forwarding) Test
• src/tests/messaging Basic Messaging Test
• src/tests/null Basic Null Response Test

Please see the CloudI API documentation for more details.