moleculerjs/moleculer v0.14.9 on GitHub

Register method in module resolver

If you create a custom module (e.g. serializer), you can register it into the built-in modules with the register method. This method is also available in all other built-in module resolver.

Example

// SafeJsonSerializer.js
const { Serializers } = require("moleculer");

class SafeJsonSerializer {}

Serializers.register("SafeJSON", SafeJSON);

module.exports = SafeJsonSerializer;

// moleculer.config.js
require("./SafeJsonSerializer");

module.exports = {
    nodeID: "node-100",
    serializer: "SafeJSON"
    // ...
});

Changeable validation property name

You can change the params property name in validator options. It can be useful if you have a custom Validator implementation.

const broker = new ServiceBroker({
    validator: {
        type: "Fastest",
        options: {
            paramName: "myParams" // using `myParams` instead of `params`
        }
    }
});

broker.createService({
    name: "posts",
    actions: {
        create: {
            myParams: {
                title: "string"
            }
        },
        handler(ctx) { /* ... */ }
    }
});

Global tracing span tags for actions & events

Thanks for @kthompson23, you can configure the action & events tracing span tags globally. These tags will be used for all actions & events where tracing is enabled. Of course, you can overwrite them locally in the action & event schema.

Example

// moleculer.config.js
module.exports = {
    tracing: {
        enabled: true,
        exporter: 'Zipkin',
        tags: {
            action: {
                meta: ['app.id', 'user.email', 'workspace.name'],
                params: false,  // overrides default behavior of all params being adding as tags
                response: true,
            },
            event: (ctx) {
                return {
                    caller: ctx.caller,
                }
            }  
        }
    }
}

Other changes

fix multiple trace spans with same ID issue in case of retries.
update dependencies
add lastValue property to histogram metric type.
update return type of context's copy method.
add configuration hotReloadModules #779
Remove Zipkin v1 annotations and change kind to SERVER