We have a real big Problem with the REST API because the API doesn't provide GET for Payment- and Shipping-Methods, defined in the Parameters of the Shop.
After Hours and Hours of searching we've found Infos about getting this Informations by using Carts, but that's not the Way we need to do it.
As Info of Background, we are developing an additional Software for an ERP-Product to syncronize Data between an ERP and for Example a Webshop. Before the Sync happens, we call on both sides to get the needed Infos for mapping them. Without Payments and Shippings we can't get this done completly and the Customer will get wrong created Items in the ERP.
That's a real big Problem for us. We've created an addtional Module for Meganto 2 which delivers the missing Infos we need, but this is not the best Way because some Servers/Webspaces doesn't support Commands executed by PHP, so we can't install the Module automatically.
What we need in Short Description:
GET -> Shipping-Methods (all, defined and viewable in Magento 2 Backend)
GET -> Payment-Methods (all, defined and viewable in Magento 2 Backend)
Please, if possible, implement this to the REST Api. It will help us a lot.