GraphQL JSON data type

The json db type may have an array or a map with unstructured keys. Unstructured data is strictly forbidden in GraphQL, so you’ll need to work around it. You have two primary options:

  1. If you are storing semi-structures data in the field (like a list of strings, of a map with a few possible keys), then make an object with those fields.
  2. If you have arbitrary data in there then you can send it as a string and have the client decode it.

In our primary GraphQL API we use both of these techniques.

One caveat, if you do go with option 2: enforce the size of the arbitrary data that can be stored. For example, if you have a meta field with client provided values you should restrict the serialized JSON to a fixed length. We do this and limit data to 1024 characters.