bindEagerlyTo

Binds injection token to eager dependency.

Importing

import { bindEagerlyTo } from '@marblejs/core';

Type declaration

bindEagerlyTo :: ContextToken -> ContextReader -> BoundDependency

The function is responsible for binding context token to ContextReader which can be a fp-ts Reader instance or plain sync/async () => T. The function is producing a eager binding, which means that, the dependency will be evaluated on startup.

Example

import { reader, bindEagerlyTo, createServer, createContextToken } from '@marblejs/core';
import { pipe } from 'fp-ts/lib/pipeable';
import * as R from 'fp-ts/lib/Reader';
// create sync reader
const FooSyncToken = createContextToken<ReturnType<typeof fooSync>>('FooSyncToken');
const fooSync = pipe(reader, R.map(ask => {
const otherDependency = ask(OtherToken);
return { ... };
});
// create async reader
const FooAsyncToken = createContextToken<ReturnType<typeof fooSync>>('FooSyncToken');
const fooAsync = pipe(reader, R.map(async ask => {
const otherDependency = ask(OtherToken);
return { ... };
});
// bind readers to tokens
const boundSyncDependency = bindEagerlyTo(FooSyncToken)(fooSync);
const boundAsyncDependency = bindEagerlyTo(FooAsyncToken)(fooAsync);