Literal types in SDK give Typescript errors on createItem and no validation on updateItem

[martijn-dev]

Describe the Bug

Up until directus SDK V14 I had the following situation/Schema:

export interface Users {
  id: string;
  name: string;
  endvisit_at?: string | null;
  created_at: string;
  properties: any;
}

export interface CustomDirectusSchema {
  users: Users[];
}

const client = createDirectus<CustomDirectusSchema>(
      process.env.DIRECTUS_URL
    ).with(rest());

client.request(
      readItems('users', {
        filter: {
          created_at: {
            _lte: `$NOW`
          }
        }
      })
    );

But since SDK V15 the filter checks on string fields became more strict so this _lte on a string field is not allowed anymore.

So I dived into the docs and found out there are literal types now datetime, csv and json.

So I changed my Schema to the following:

export interface Users {
  id: string;
  name: string;
  endvisit_at?: 'datetime' | null;
  created_at: 'datetime';
  properties: 'json';
}

export interface CustomDirectusSchema {
  users: Users[];
}

Victory! Now I'm allowed to use the _lte in the filter query again.

Let me know if the implementation of this Schema is actually correct 😅

But now the issue, the typing on a createItem is expecting a 'datetime' or 'json' type instead of an actual string/object:

   client.request(
      createItem('users', {
        endvisit_at: '2024-02-27T11:27:25+00:00',
        properties: {
          test: 'object'
        }
      })
    );

The above gives the following errors
Type '"test"' is not assignable to type '"datetime"'.
Type '{ test: string; }' is not assignable to type '"json"'.

Next to that, if I do an updateItem action, there is no validation at all and I'm allowed to do the following (which is not correct):

  client.request(
      updateItem('users', 'test', {
        endvisit_at: { wrong: 'input' },
        properties: 'not a json field'
      })
    );

To Reproduce

Setup the following Schema with a minimal Directus SDK instance:

export interface Users {
  id: string;
  name: string;
  endvisit_at?: 'datetime' | null;
  created_at: 'datetime';
  properties: 'json';
}

export interface CustomDirectusSchema {
  users: Users[];
}

const client = createDirectus<CustomDirectusSchema>(
      process.env.DIRECTUS_URL
    ).with(rest());

Try:

   client.request(
      createItem('users', {
        endvisit_at: '2024-02-27T11:27:25+00:00',
        properties: {
          test: 'object'
        }
      })
    );

which is giving Typescript errors, while the input is correct.

and

  client.request(
      updateItem('users', 'test', {
        endvisit_at: { wrong: 'input' },
        properties: 'not a json field'
      })
    );

which is not giving any errors, while the input is incorrect.

Let me know if any more clarification is needed!

Directus Version

@directus/sdk@15.0.1

Hosting Strategy

Self-Hosted (Docker Image)