Moved ord-service into plugin package

ord/cds-plugin.js

@@ -0,0 +1 @@
+// just a dummy tag file to be identified as a plugin

ord/package.json

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+{
+  "name": "@cap-js/ord",
+  "version": "2.0.0",
+  "cds": {
+    "requires": {
+      "SAP ORD Service": {
+        "model": "@cap-js/ord/srv/ord-service",
+        "service": "OrdService"
+      }
+    }
+  }
+}

ord/srv/ord-service.cds

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+// @requires: 'ORDconsumer'
+@rest @path:'/ord/v1'
+service OrdService {
+  @readonly entity documents {
+    key id: String;
+  }
+  @readonly entity csn {
+    key id: String;
+  }
+
+  function api (service: String, format: String) returns {};
+}

ord/srv/ord-service.mjs

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+import cds from '@sap/cds'
+export class OrdService extends cds.ApplicationService {
+  init(){
+
+    this.on('READ','documents', req => {
+      let csn = cds.context?.model || cds.model
+      return { ord: csn }
+    })
+
+    /**
+     * Just an example to do something with id, if given.
+     * Try it out with URLs like that:
+     *
+     * - http://localhost:4004/ord/v1/documents
+     * - http://localhost:4004/ord/v1/documents/CatalogService
+     * - http://localhost:4004/ord/v1/documents/CatalogService.Books
+     * - http://localhost:4004/ord/v1/documents/CatalogService.Authors
+     */
+    this.on('READ','csn', req => {
+      let csn = cds.context?.model || cds.model
+      let { id } = req.data
+      if (id) csn = csn.definitions[id] || 'not in model!'
+      return { id, csn }
+    })
+
+    /**
+     * Just an example to serve arbitrary content with a function.
+     * Try it out with URLs like that:
+     *
+     * - http://localhost:4004/ord/v1/api?service=CatalogService
+     * - http://localhost:4004/ord/v1/api?service=CatalogService&format=edmx
+     * - http://localhost:4004/ord/v1/api?service=CatalogService&format=edmx-v2
+     * - http://localhost:4004/ord/v1/api?service=CatalogService&format=openapi
+     */
+    this.on('api', req => {
+      let csn = cds.context?.model || cds.model
+      let { service, format = 'csn' } = req.data
+      let { res } = req.http
+      if (format === 'csn') {
+        if (!service) return res.send(csn)
+        service = csn.services[service]
+        return res.send({ definitions: [ service, ...service.entities ] .reduce ((all,e) => {
+          let d = all[e.name] = {...e}
+          delete d.projection // not part of the API
+          delete d.query     // not part of the API
+          return all
+        },{})})
+      }
+      let api = cds.compile(csn).to[format]({service})
+      return res.send(api)
+    })
+
+    /**
+     * Example how to register arbitrary express routes,
+     * and map them to our service's interface.
+     * Try it out with URLs like that:
+     *
+     * - http://localhost:4004/ord/v1/csn/CatalogService
+     * - http://localhost:4004/ord/v1/edmx/CatalogService
+     * - http://localhost:4004/ord/v1/openapi/CatalogService
+     * - http://localhost:4004/ord/v1/asyncapi/CatalogService
+     *
+     * NOTE: we add cds.middlewares.before to the route, which gives us all
+     * the context and auth handling, which is also available to CAP services.
+     */
+    cds.app.get (`${this.path}/:api?/:service?`, cds.middlewares.before, req => {
+      const { api, service } = req.params
+      return this.api (service, api)
+    })
+
+    return super.init()
+  }
+}