Supported scalars
Scalars represent the leaf values in the graph, either as part of key-value properties in shapes, or value of items in lists. You can learn more about scalars in the GraphQL specification.
Primitive types
The following scalars are part of the GraphQL specification.
Boolean
A true or false value.
Int
A signed 32-bit integer.
A range of valid values can be defined using the @int directive.
Float
A signed double-precision floating-point value.
A range of valid values can be defined using the @float directive.
String
A UTF-8 character sequence.
The @string directive must be used along with String scalars to define the maxLength of the string.
Identifiers
The following scalars represent unique identifiers in the graph. In ComposedDB, they are all stored as string values.
ID
A Node identifier used by GraphQL.
The @string directive must be used along with ID scalars to define the maxLength of the ID string.
CommitID
Identifies a specific version of a Stream in the Ceramic network.
DID
A Decentralized Identifier, representing an actor able to create and mutate Documents in the graph, using GraphQL Scalars.
Date and time
The following scalars can be used to store date and time values using standard representations.
Date
RFC 3339 compliant date string without time information, 2007-12-03 for example, using GraphQL Scalars.
DateTime
A date-time string at UTC, such as 2007-12-03T10:15:30Z, using GraphQL Scalars.
Time
A time string at UTC, such as 10:15:30Z, using GraphQL Scalars.