What is the best method for excluding the sys object from a Contentful CDA response?

Is there a way to exclude the sys object from the Content Delivery API response when using the getEntries method with the select search parameter in querying? I've tried including it but the sys object is not being removed.

getProducts(query?: object): Promise<Entry<any>[]> {
    return this.cdaClient.getEntries(Object.assign({
      content_type: 'product',
      select: 'fields',
      include: 1
    }, query))
      .then(res => res.items);

Answer №1

Hey there!

Contentful's linking mechanism operates in a unique way, as seen in the JSON response from the collection endpoint which consists of two main segments – "items" and "includes".

{
    "items": [
    {
      "sys": {
        "type": "Entry",
        "id": "4rJn9OJsBiAKmeoiiw40Ko",
      },
      "fields": {
        "name": "Menu for Humans",
        "stickiness": 999.3,
        "menuMeal": [
          {
            "sys": {
              "type": "Link",
              "linkType": "Entry",
              "id": "3HkMtbj6hqcMYEqWIOm6SQ"
            }
          }
        ]
      }
    },  
  ],
  "includes": {
    "Entry": [
      {
        "sys": {
          "id": "3HkMtbj6hqcMYEqWIOm6SQ",
          "type": "Entry",
          ...
        },
        "fields": {...}
      },
      ...
    }
  ]
}

The items in "items" make reference to other elements within the "includes" section. The SDKs handle this complexity by resolving these references automatically, allowing you to access fields recursively within the response structure.

It is essential to include the "sys" property in the JS SDK, as highlighted here, as it plays a crucial role in link resolution.

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