Gefilterde Lijst Queries

Je kunt je queryresultaten filteren. In de volgende voorbeelden hebben we een tabel genaamd students, die velden en relaties bevat zoals createdAt, firstName, email, age.

Gebruik van Filters in Queries

Vraag lijst met records op die gefilterd zijn. Let op het filter argument.

Verzoek

query MyQuery1 {
  students(
    filter: {
      createdAt: {
        gt: "2025-12-01T13:00:00.000Z"
      },
      email: {
        contains: "williams"
      }
    }
  ) {
    items {
      id
      createdAt
      firstName
      email
    }
  }
}

Antwoord

{
  "data": {
    "students": {
      "items": [
        {
          "id": "97fb89ac-e0ad-44f5-b671-24a1b751287c",
          "createdAt": "2025-12-02T05:03:17.180675Z",
          "firstName": "John",
          "email": "john.williams@example.com"
        },
        {
          "id": "e25c4955-7ea7-4a83-a3de-d4c7427cc9fa",
          "createdAt": "2025-12-04T14:18:15.955194Z",
          "firstName": "Robert",
          "email": "robert.williams@example.com"
        }
      ]
    }
  }
}

Voorwaardelijke Filters

Voorwaardelijke filters gebruiken de AND en OR sleutels.

Gebruik van AND

Wanneer AND is gespecificeerd, moeten alle filterobjecten waar retourneren.

Verzoek

query MyQuery1 {
  students(
    filter: {
      AND: {
        email: {
          contains: "johnson"
        },
        isActive: {
          not_equals: false
        }
      }
      }
  ) {
    items {
      id
      createdAt
      firstName
      email
      isActive
    }
  }
}

Antwoord

{
  "data": {
    "students": {
      "items": [
        {
          "id": "13fcb5bf-a8a4-4e55-860f-74f425944ec0",
          "createdAt": "2025-12-04T20:30:58.586321Z",
          "firstName": "Mary",
          "email": "mary.johnson@example.com",
          "isActive": true
        }
      ]
    }
  }
}

Gebruik van OR

Wanneer OR is gespecificeerd, moet ten minste één filterobject waar retourneren.

Verzoek

query MyQuery1 {
  students(
    filter: {
      OR: {
        firstName: {
          equals: "Mary"
        },
        lastName: {
          equals: "Williams"
        }
      }
    }
  ) {
    items {
      id
      createdAt
      firstName
      email
      isActive
    }
  }
}

Antwoord

{
  "data": {
    "students": {
      "items": [
        {
          "id": "429cf99f-4481-49c4-adb4-605731b20eb2",
          "createdAt": "2025-12-04T14:16:53.049955Z",
          "firstName": "Mary",
          "email": "mary.brown@example.com",
          "isActive": true
        },
        {
          "id": "97fb89ac-e0ad-44f5-b671-24a1b751287c",
          "createdAt": "2025-12-02T05:03:17.180675Z",
          "firstName": "John",
          "email": "john.williams@example.com",
          "isActive": true
        },
        {
          "id": "13fcb5bf-a8a4-4e55-860f-74f425944ec0",
          "createdAt": "2025-12-04T20:30:58.586321Z",
          "firstName": "Mary",
          "email": "mary.johnson@example.com",
          "isActive": true
        },
        {
          "id": "0174dc55-d494-4ebc-a0e9-13575461cad4",
          "createdAt": "2025-12-05T15:20:10.123456Z",
          "firstName": "Robert",
          "email": "robert.williams@example.com",
          "isActive": true
        }
      ]
    }
  }
}