Candid RPC or HTTP Server
Azle applications (canisters) can be developed using two main methodologies: Candid RPC and HTTP Server.
Candid RPC embraces ICP's Candid language, exposing canister methods directly to Candid-speaking clients, and using Candid for serialization and deserialization purposes.
HTTP Server embraces traditional web server techniques, allowing you to write HTTP servers using popular libraries such as Express, and using JSON for simple serialization and deserialization purposes.
Candid RPC is heading towards 1.0 and production-readiness in 2024.
HTTP Server will remain experimental for an unknown length of time.