Data type JSON

When converting the following datamodel:

type A {
  id: ID! @unique

  text: String!

  meta: JSON!
}

Using the following method:

cat datamodel.graphql | prisma2 convert > schema.prisma

I get the following schema:

model A {
  id   String @default(cuid()) @id @unique
  text String
}

As we can see, the meta: JSON attribute is missing

[mavilein]

Here is a summary of what we implemented so far:

Prisma Schema The data type for JSON is called Json in the schema. It can be used like this:

model Blog {
  id   Int @id
  json Json 
}

It is supported by the MySQL and Postgres connectors. It is not supported by SQLite.

Introspection The prisma introspect command maps the following column types to Json:

• Postgres: json and jsonb
• MySQL: JSON

Migrations prisma migrate uses the following data type when creating a column for a field of type Json:

• Postgres: jsonb
• MySQL: JSON

Prisma Client A field of type Json are exposed as proper objects in Javascript.

Important Details JSON support for MySQL is only supported for versions greater than 5.6. As we don’t have version information available during schema validation no error is shown in this case. However we have version information available in prisma migrate. Therefore we error when a migration against MySQL 5.6 uses the Json data type.

[namesphill]

Hey! Do you guys happen to have an ETA on this feature?