bindTo
Binds injection token to lazy dependency.
import { bindTo, bingLazilyTo } from '@marblejs/core';
bindTo :: ContextToken -> ContextReader -> BoundDependency
bindLazilyTo :: bindTo
The function is responsible for binding context token to
ContextReader
which can be a fp-ts Reader
instance or plain a () => T
. The function is producing a lazy binding, which means that, the dependency will be evaluated on it's first call (injection).bindTo
is an alias of bindLazilyTo
. import { reader, bindTo, createContextToken } from '@marblejs/core';
import { createServer } from '@marblejs/http';
import { pipe } from 'fp-ts/lib/function';
import * as R from 'fp-ts/lib/Reader';
// create reader
const FooToken = createContextToken<Foo>('FooToken');
const foo = pipe(reader, R.map(ask => {
const otherDependency = ask(OtherToken);
return { ... };
});
// bind reader to token
const boundDependency = bindTo(FooToken)(foo);
Last modified 1yr ago