Function resolveAsGetterFromConfig

packages/context/src/inject-config.ts:171–190

* Resolver from `@config.getter` * @param ctx - Context object * @param injection - Injection metadata * @param session - Resolution session

(
  ctx: Context,
  injection: Injection,
  session: ResolutionSession,
)

 * @param session - Resolution session
 */
function resolveAsGetterFromConfig(
  ctx: Context,
  injection: Injection,
  session: ResolutionSession,
) {
  assertTargetType(injection, Function, 'Getter function');
  const bindingKey = getTargetBindingKey(injection, session);
  const meta = injection.metadata;
  return async function getter() {
    // Return `undefined` if no current binding is present
    if (!bindingKey) return undefined;
    return ctx.getConfigAsValueOrPromise(bindingKey, meta.propertyPath, {
      // https://github.com/loopbackio/loopback-next/issues/9041
      // We should start with a new session for `getter` resolution to avoid
      // possible circular dependencies
      session: undefined,
      optional: meta.optional,
    });
  };
}

/**
 * Resolver for `@config.view`