glean/middleware

Types

Middleware

Middleware that can intercept and transform provider calls.

pub type Middleware {
  Middleware(
    transform_request: option.Option(
      fn(provider.GenerateRequest) -> provider.GenerateRequest,
    ),
    transform_result: option.Option(
      fn(provider.GenerateResult) -> provider.GenerateResult,
    ),
  )
}

Constructors

Middleware(
  transform_request: option.Option(
    fn(provider.GenerateRequest) -> provider.GenerateRequest,
  ),
  transform_result: option.Option(
    fn(provider.GenerateResult) -> provider.GenerateResult,
  ),
)

Arguments

transform_request: Transform the request before it’s sent to the provider
transform_result: Transform the result after it’s returned from the provider

Values

apply

</>

pub fn apply(
  provider: provider.Provider,
  middleware: Middleware,
) -> provider.Provider

Wrap a provider with middleware, producing a new provider.

chain

</>

pub fn chain(middlewares: List(Middleware)) -> Middleware

Chain multiple middlewares into one. Applied left-to-right: first middleware’s request transform runs first, last middleware’s result transform runs last.

request_middleware

</>

pub fn request_middleware(
  transform: fn(provider.GenerateRequest) -> provider.GenerateRequest,
) -> Middleware

Create a middleware that only transforms requests.

result_middleware

</>

pub fn result_middleware(
  transform: fn(provider.GenerateResult) -> provider.GenerateResult,
) -> Middleware

Create a middleware that only transforms results.