Struct wasm_framework::Context

pub struct Context { /* fields omitted */ }

Context manages the information flow for an incoming HTTP [Request], the application handler, and the generated HTTP Response. It holds a buffer for log messages, and a hook for deferred tasks to be processed after the Response is returned.

Implementations

impl Context

pub fn response(&mut self) -> &mut Response

Creates response builder

pub fn defer(&mut self, task: Box<dyn Runnable + UnwindSafe>)

Adds a task to the deferred task queue. The task queue uses event.waitUntil to extend the lifetime of the request event, and runs tasks after the response has been returned to the client. Deferred tasks are often useful for logging and analytics.

pub fn take_logs(&mut self) -> Vec<LogEntry>

Returns pending log messages, emptying internal queue. This is used for sending queued messages to an external log service

pub fn log(&mut self, e: LogEntry)

Adds log to deferred queue

pub fn raise_internal_error(&mut self, e: Box<dyn Error>)

Sets the internal error flag, which causes wasm_service to invoke the internal_error_handler

pub fn is_internal_error(&self) -> Option<&dyn Error>

Returns whether the internal error flag has been set

Trait Implementations

impl Default for Context

fn default() -> Context

Returns the “default value” for a type.

impl Send for Context