Represents the possible response states of a query.

Sends a query to the given URL and returns a Cmd for the given msg containing the parsed Cqrs.Query.Response a. The value contained within the Cqrs.Query.Response a, will be the value parsed via the provided decoder.

Sends a query to the given URL and returns a Task which will contain the parsed Cqrs.Query.Response a. The value contained within the Cqrs.Query.Response a, will be the value parsed via the provided decoder.

Constructs the Data variant of a Cqrs.Query.Response a.

This is useful for testing how your UI will respond to the happy path, without actually sending a query.

Constructs the Error variant of a Cqrs.Query.Response a.

This is useful for testing how your UI will respond to the sad path, without actually sending a query.

Maps the Data variant of a given Cqrs.Query.Response a and returns a Cqrs.Query.Response b.

Maps the Error variant of a given Cqrs.Query.Response a.

Checks if a given Cqrs.Query.Response is a Data variant.

succeeded (Data []) --> True


succeeded (Error "reason") --> False

Checks if a given Cqrs.Query.Response is an Error variant.

failed (Data []) --> False


failed (Error "reason") --> True

If a given Cqrs.Query.Response was successful, the data it contains will be returned.

data (Data []) --> Just []


data (Error "reason") --> Nothing

If a given Cqrs.Query.Response was unsuccessful, the reason for the failure will be returned.

reason (Data []) --> Nothing


reason (Error "reason") --> Just "reason"

Decodes a given payload into a Cqrs.Query.Response a.