7 replies

Ensuring Schema Subset Validity in TypeScript with @effect/schema

asd

asd

asd

asd is a field that doesn't exist in

Foo

Foo

Foo

Foo. Is there a way of creating a derived Schema class so that it's enforced to contain a subset of the fields of another? (for example make sure that

Bar

Bar

Bar

Bar can't have fields not present in

Foo

Foo

Foo

Foo? (In typescript I'd extend or intersect another type. something like that)

import * as S from '@effect/schema/Schema';

import { Foo } from '../../shared/models/db_v0/Foo';

export class Bar extends S.Class<Bar>('Bar')({
  id: Foo.fields.id,
  type: Foo.fields.type,
  content: Foo.fields.content,
  title: Foo.fields.title,
  asd: S.Struct({
    asd: S.String,
  }),
}) {}

import * as S from '@effect/schema/Schema';

import { Foo } from '../../shared/models/db_v0/Foo';

export class Bar extends S.Class<Bar>('Bar')({
  id: Foo.fields.id,
  type: Foo.fields.type,
  content: Foo.fields.content,
  title: Foo.fields.title,
  asd: S.Struct({
    asd: S.String,
  }),
}) {}

import * as S from '@effect/schema/Schema';

import { Foo } from '../../shared/models/db_v0/Foo';

export class Bar extends S.Class<Bar>('Bar')({
  id: Foo.fields.id,
  type: Foo.fields.type,
  content: Foo.fields.content,
  title: Foo.fields.title,
  asd: S.Struct({
    asd: S.String,
  }),
}) {}

import * as S from '@effect/schema/Schema';

import { Foo } from '../../shared/models/db_v0/Foo';

export class Bar extends S.Class<Bar>('Bar')({
  id: Foo.fields.id,
  type: Foo.fields.type,
  content: Foo.fields.content,
  title: Foo.fields.title,
  asd: S.Struct({
    asd: S.String,
  }),
}) {}

Ensuring Schema Subset Validity in TypeScript with @effect/schema

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