API Fields Middlware

Use API Fields easily in Koa.

yarn add @lcdev/api-fields-middleware@0.1

import{ApiField}from'@lcdev/api-fields';// somewhere, where your model is definedclassEntityA{
@ApiField()publicFieldA: any;
@ApiField()publicFieldB: any;privateFieldA: any;privateFieldB: any;}import{extractApiFieldsMiddleware}from'@lcdev/api-fields-middleware';// somewhere, where you have a koa routerapp.get('/foo/bar',extractApiFieldsMiddleware(EntityA),async(ctx,next)=>{// the body ends up as an object that is, or looks like an 'EntityA'ctx.body=newEntityA();returnnext();});

This will perform the extract with ApiFields of EntityA, after your router middleware has run. This will only apply if the response is a 200.

Features:

• Supports extractApiFieldsMiddleware([EntityA]) to imply that the api response is an array of EntityA
• Supports extractApiFieldsMiddleware({ ... }, true) to pass a "raw" Extraction object to use (you might use getApiFields with an extension here)