Magento 2 Custom Shipping Method – Specify Shipping Method

custom-shipping-methodmagento2

I've been trying to add custom shipping methods to a Magento 2 webshop, using configurations in app/code/vendor/module/etc/config.xml, app/code/vendor/module/etc/system.xml and app/code/vendor/module/Model/Carrier/Shippingmethod.php.

So, this all works, and I can select the shipping methods. Also, when NOT logged in, the checkout works fine and can get completed.

The problem is, when logged in with a (new) customer, when using one of the custom shipping methods, it throws the following error:
'Please specify a shipping method' (freely translated from original language).
The console throws the following error:

When I go the following link:

http://mywebshop.com/rest/default/V1/carts/mine/payment-information

It says:
"User not authorized for %resources" and a <trace> tag with a few php files:

Some research later, people talk about tokens and stuff, but can't figure it out.

Best Answer

this possibly occurs because new customers do not have an address registered, I've pass throug problems with custom shipping too, see this question, maybe helps you.

And see my example of custom shipping method.

I hope it help

Related Solutions

Magento – Magento 2 custom module not loading and it throws error

move your registration.php and composer.json files to your Test/Module1 root folder

and

change your module.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
  <module name="Test_Module1" schema_version="1.0.0" setup_version="1.0.0"/> 
</config>

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Test_Module1" setup_version="1.0.0">
    </module>
</config>

Magento – Magento 2: How shipping rest api function called On Checkout

As you pointed out, when you click "Ship here" a HTTP POST request is dispatched to "/V1/carts/mine/estimate-shipping-methods-by-address-id" REST API (from module-quote). If you take a look at module-quote/etc/webapi.xml you will find the url:

<route url="/V1/carts/mine/estimate-shipping-methods-by-address-id" method="POST">
  <service class="Magento\Quote\Api\ShippingMethodManagementInterface" method="estimateByAddressId"/>
  <resources>
    <resource ref="self" />
  </resources>
  <data>
    <parameter name="cartId" force="true">%cart_id%</parameter>
  </data>
</route>

You can notice that under the <route> element there is <service> element with the class="Magento\Quote\Api\GuestShipmentEstimationInterface" and method="estimateByExtendedAddress". Now obviously, the estimateByAddressId method cannot be instantiated from an interface.

Here comes in scene the magento 2 dependency injection. Look at module-quote/etc/di.xml file that maps an interface(Magento\Quote\Api\ShippingMethodManagementInterface) dependency to a preferred implementation class(Magento\Quote\Model\ShippingMethodManagement).

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\Quote\Api\ShippingMethodManagementInterface" type="Magento\Quote\Model\ShippingMethodManagement" />
    ...................
</config>

This is how estimateByAddressId method is called.

Useful links:

Magento 2 Web APIs:
http://devdocs.magento.com/guides/v2.0/get-started/bk-get-started-api.html
http://devdocs.magento.com/guides/v2.0/extension-dev-guide/service-contracts/service-to-web-service.html

Magento 2 Dependency injection:
http://devdocs.magento.com/guides/v2.0/extension-dev-guide/depend-inj.html
http://magento-quickies.alanstorm.com/post/68129858943/magento-2-injecting-interfaces

Best Answer

Related Solutions

Magento – Magento 2 custom module not loading and it throws error

Magento – Magento 2: How shipping rest api function called On Checkout

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