HTTP-Invoked Functions

Use this pattern when iii should call external HTTP endpoints as functions.

Pattern selection rules

• If the task says "register HTTP endpoints with registerFunction", use this pattern.
• If the task asks for an endpoint list/map (for example { path, id }) and a loop over registerFunction, use this pattern.
• If the system being adapted cannot be modified, use this pattern.
• If the goal is exposing inbound routes that iii owns, use registerTrigger({ type: 'http' }) instead.

Core model

• registerFunction(meta, HttpInvocationConfig) registers an outbound HTTP-invoked function.
• trigger({ function_id, payload }) invokes it like any other function.
• Trigger payload becomes request body for JSON-based calls.
• Non-2xx and network failures are treated as invocation failures.

Common shape