Crate harmonizer[−][src]
Harmonizer
This harmonizer offers the ability to invoke a bundled version of the
JavaScript library, @apollo/federation
, which composes multiple subgraphs
into a supergraph.
The bundled version of the federation library that is included is a JavaScript
Immediately Invoked Function Expression (IIFE) that is created by running the
Rollup.js bundler on the @apollo/federation
package.
When the harmonize
function that this crate provides is called with a
ServiceList
(which is synonymous with the terminology and service list
notion that exists within the JavaScript composition library), this crate uses
deno_core
to invoke the JavaScript within V8. This is ultimately
accomplished using rusty_v8
’s V8 bindings to V8.
While we intend for a future version of composition to be done natively within Rust, this allows us to provide a more stable transition using an already stable composition implementation while we work toward something else.
Structs
CompositionError | An error which occurred during JavaScript composition. |
CompositionErrorExtensions | Mimicking the JavaScript-world from which this error comes, this represents
the |
ServiceDefinition | The |
Functions
harmonize | The |
Type Definitions
ServiceList | An ordered stack of the services (subgraphs) that, when composed in order by the composition algorithm, will represent the supergraph. |