nodeJS GRPC Producer

Producing Facts via Node.js is straightforward with the available gRPC NPM module. It generates a stub constructor called RemoteFactStore from the FactCast proto file.

const uuidV4 = require("uuid/v4");
const grpc = require("grpc");
const protoDescriptor = grpc.load("./FactStore.proto");
const RemoteFactStore =
	protoDescriptor.org.factcast.grpc.api.gen.RemoteFactStore;

// store allows us to publish, subscribe and fetchById (see proto file)
const store = new RemoteFactStore(
	"localhost:9090",
	grpc.credentials.createInsecure()
);

store.publish(
	[
		{
			header: JSON.stringify({
				id: uuidV4(),
				ns: "myapp",
			}),
			payload: JSON.stringify({
				foo: Date.now(),
			}),
		},
	],
	(err, feature) => {
		if (err) {
			console.log(err);
		}
	}
);

See the Facts page for detailed information about all possible and required header fields.