fix: remove edges field from projection argument provided to findMany resolver

relates #75

Author: nodkz

.eslintrc.js

@@ -38,6 +38,7 @@ module.exports = {
     '@typescript-eslint/no-empty-function': 0,
     '@typescript-eslint/camelcase': 0,
     '@typescript-eslint/ban-ts-comment': 0,
+    '@typescript-eslint/no-unused-vars': ['error', { ignoreRestSiblings: true }],
   },
   env: {
     jasmine: true,

jest.config.js

@@ -3,7 +3,7 @@ module.exports = {
   testEnvironment: 'node',
   globals: {
     'ts-jest': {
-      tsConfig: '<rootDir>/tsconfig.json',
+      tsconfig: '<rootDir>/tsconfig.json',
       isolatedModules: true,
       diagnostics: false,
     },

src/connection.ts

@@ -5,6 +5,7 @@ import {
   ResolverResolveParams,
   ObjectTypeComposerArgumentConfigMap,
   ObjectTypeComposerFieldConfigMap,
+  ProjectionType,
 } from 'graphql-compose';
 import { prepareConnectionType, PageInfoType, ConnectionType } from './types/connectionType';
 import { prepareSortType } from './types/sortInputType';
@@ -156,12 +157,24 @@ export function prepareConnectionResolver<TSource, TContext>(
         countPromise = Promise.resolve(0);
       }
 
-      if (projection && projection.edges) {
+      if (projection?.edges) {
         // combine top level projection
-        // (maybe somebody add additional fields via resolveParams.projection)
+        // (maybe somebody provided additional fields via resolveParams.projection)
         // and edges.node (record needed fields)
-        const extraProjection = opts.edgeFields ? projection.edges : projection.edges.node;
-        findManyParams.projection = { ...projection, ...extraProjection };
+        const { edges, ...projectionWithoutEdges } = projection;
+        const extraProjection = {} as ProjectionType;
+        if (opts.edgeFields) {
+          Object.keys(opts.edgeFields).forEach((extraKey) => {
+            if (projection.edges[extraKey]) {
+              extraProjection[extraKey] = projection.edges[extraKey];
+            }
+          });
+        }
+        findManyParams.projection = {
+          ...projectionWithoutEdges,
+          ...projection?.edges?.node,
+          ...extraProjection,
+        };
       } else {
         findManyParams.projection = { ...projection };
       }