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Injections

Injection is a mechanism to get the value of a parameter from other sources than the graphql query. When a parameter is injected, no value is expected in the query, otherwise, the query will fail. They are specified at the type level for input types that are direct children of a t.struct.

Static

Description: Static injection sets a static value to the parameter.

Method: .set(value)

Parameter: The value to be set, it must be compatible with the target type.

Parent

Description: Parent injection gets the value output of a sibling field in the parent struct. It adds a dependency to the sibling field, so make sure to prevent circular dependencies.

Method: .from_parent(type_name)

Parameter: The type name of the sibling field in the parent struct.

Context

Description: Context injection gets the value from the request context that contains authentication data.

Method: .from_context(prop_name)

Parameter: The name or jsonpath of the property in the context.

Secret

Description: Secret injection gets the value from the secrets defined when deploying the typegraph.

Method: .from_secret(secret_name)

Parameter: The name of the secret.

Dynamic

Description: Dynamic injection gets the value from a predefined generator evaluated at runtime.

Method: .inject(generator_name)

Parameter: The name of the generator.

Available generators:

  • now: produces the current datetime as a valid ISO string format. This value depends on the configuration of the typegate host machine.

Example

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