The Tools of the Trade: TypeScript Tooling

Trying out the amazing Breeze Typescript Entity Generator tool but encountering an error consistently.

Error: Experiencing difficulty in locating the default implementation of the 'modelLibrary' interface. Options include 'ko', 'backingStore', or 'backbone'. Visit the breeze.config.initializeAdapterInstances method for more details.

The error is being triggered at this specific line in tsgen-core.js: 

var metadataStore = breeze.MetadataStore.importMetadata(metadata);

I have confirmed that the metadata is being fetched correctly. It appears that I need to set up breeze with an interfaceAdapter, yet the example provided in the repository does not demonstrate configuring anything on breeze before utilizing it to importMetadata for this tool.

typescriptbreeze

Answer №1

It slipped our minds to make changes in tsgen.js for the most recent version of breeze-client, where the default js file is now breeze.base.debug.js instead of breeze.debug.js. Unlike breeze.debug.js, the breeze.base.debug.js does not have a default modelLibrary.

I have made the necessary updates to tsgen.js to accommodate breeze.debug.js. Please download the latest version and give it another try.

Answer №2

While attempting to transition from IEdmModel to metadata.json, I encountered a roadblock. In order to resolve the issue at hand, I found it necessary to register the model library backing:

const backing = require('breeze-client/bundles/breeze-client-adapter-model-library-backing-store.umd');
const breeze = require('breeze-client/bundles/breeze-client.umd');

backing.ModelLibraryBackingStoreAdapter.register();

In order to obtain the metadata csdl, I devised an extension method to convert IEdmModel to csdl.

https://gist.github.com/UniqueUser/123456789abcdefg

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