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FetchMiddlewares.resolvePluginProtocol()

Home > @backstage/core-app-api > FetchMiddlewares > resolvePluginProtocol

Handles translation from plugin:// URLs to concrete http(s) URLs based on the discovery API.

Signature:

static resolvePluginProtocol(options: {
        discoveryApi: DiscoveryApi;
    }): FetchMiddleware;

Parameters​

Parameter

Type

Description

options

{ discoveryApi: DiscoveryApi; }
**Returns:**

FetchMiddleware

Remarks​

If the request is for plugin://catalog/entities?filter=x=y, the discovery API will be queried for 'catalog'. If it returned https://backstage.example.net/api/catalog, the resulting query would be https://backstage.example.net/api/catalog/entities?filter=x=y.

If the incoming URL protocol was not plugin, the request is just passed through verbatim to the underlying implementation.