Moleculer v0.14.9 release notes (2020-08-06)

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Moleculer v0.14.9 Release Notes

Release Date: 2020-08-06 // over 3 years ago

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 resolvers.

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,
                }
            }  
        }
    }
}