diff --git a/packages/api/src/entity/post.ts b/packages/api/src/entity/post.ts
index 2890a3af9..530bf78be 100644
--- a/packages/api/src/entity/post.ts
+++ b/packages/api/src/entity/post.ts
@@ -1,9 +1,11 @@
 import {
   Column,
+  CreateDateColumn,
   Entity,
   JoinColumn,
   ManyToOne,
   PrimaryGeneratedColumn,
+  UpdateDateColumn,
 } from 'typeorm'
 import { User } from './user'
 
@@ -37,9 +39,9 @@ export class Post {
   @Column('text', { nullable: true })
   thought?: string | null
 
-  @Column('timestamptz')
+  @CreateDateColumn({ type: 'timestamptz' })
   createdAt!: Date
 
-  @Column('timestamptz')
+  @UpdateDateColumn({ type: 'timestamptz' })
   updatedAt!: Date
 }
diff --git a/packages/api/src/generated/graphql.ts b/packages/api/src/generated/graphql.ts
index 7a128adaa..069fed32e 100644
--- a/packages/api/src/generated/graphql.ts
+++ b/packages/api/src/generated/graphql.ts
@@ -515,6 +515,7 @@ export type CreatePostError = {
 };
 
 export enum CreatePostErrorCode {
+  BadRequest = 'BAD_REQUEST',
   Unauthorized = 'UNAUTHORIZED'
 }
 
@@ -2408,12 +2409,12 @@ export type ParseResult = {
 
 export type Post = {
   __typename?: 'Post';
-  author: User;
+  author: Scalars['String'];
   content: Scalars['String'];
   createdAt: Scalars['Date'];
   highlights?: Maybe<Array<Highlight>>;
   id: Scalars['ID'];
-  libraryItems: Array<Article>;
+  libraryItems?: Maybe<Array<Article>>;
   ownedByViewer: Scalars['Boolean'];
   thought?: Maybe<Scalars['String']>;
   thumbnail?: Maybe<Scalars['String']>;
@@ -7059,12 +7060,12 @@ export type PageInfoResolvers<ContextType = ResolverContext, ParentType extends
 };
 
 export type PostResolvers<ContextType = ResolverContext, ParentType extends ResolversParentTypes['Post'] = ResolversParentTypes['Post']> = {
-  author?: Resolver<ResolversTypes['User'], ParentType, ContextType>;
+  author?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   content?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   createdAt?: Resolver<ResolversTypes['Date'], ParentType, ContextType>;
   highlights?: Resolver<Maybe<Array<ResolversTypes['Highlight']>>, ParentType, ContextType>;
   id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
-  libraryItems?: Resolver<Array<ResolversTypes['Article']>, ParentType, ContextType>;
+  libraryItems?: Resolver<Maybe<Array<ResolversTypes['Article']>>, ParentType, ContextType>;
   ownedByViewer?: Resolver<ResolversTypes['Boolean'], ParentType, ContextType>;
   thought?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   thumbnail?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
diff --git a/packages/api/src/generated/schema.graphql b/packages/api/src/generated/schema.graphql
index ca5744364..849c09f9d 100644
--- a/packages/api/src/generated/schema.graphql
+++ b/packages/api/src/generated/schema.graphql
@@ -460,6 +460,7 @@ type CreatePostError {
 }
 
 enum CreatePostErrorCode {
+  BAD_REQUEST
   UNAUTHORIZED
 }
 
@@ -1842,12 +1843,12 @@ input ParseResult {
 }
 
 type Post {
-  author: User!
+  author: String!
   content: String!
   createdAt: Date!
   highlights: [Highlight!]
   id: ID!
-  libraryItems: [Article!]!
+  libraryItems: [Article!]
   ownedByViewer: Boolean!
   thought: String
   thumbnail: String
diff --git a/packages/api/src/resolvers/function_resolvers.ts b/packages/api/src/resolvers/function_resolvers.ts
index bb23933e5..840476bce 100644
--- a/packages/api/src/resolvers/function_resolvers.ts
+++ b/packages/api/src/resolvers/function_resolvers.ts
@@ -791,26 +791,32 @@ export const functionResolvers = {
     recommendedAt: (recommendation: Recommendation) => recommendation.createdAt,
   },
   Post: {
-    author(post: Post, _: never, ctx: ResolverContext) {
-      return ctx.dataLoaders.users.load(post.userId)
+    async author(post: Post, _: never, ctx: ResolverContext) {
+      const author = await ctx.dataLoaders.users.load(post.userId)
+      return author?.name
     },
     ownedByViewer(post: Post, _: never, ctx: ResolverContext) {
-      console.log('ownedByViewer: ctx.claims?.uid', ctx.claims?.uid)
       return post.userId === ctx.claims?.uid
     },
-    libraryItems(
+    async libraryItems(
       post: { libraryItemIds: string[] },
       _: never,
       ctx: ResolverContext
     ) {
-      return ctx.dataLoaders.libraryItems.loadMany(post.libraryItemIds)
+      const items = await ctx.dataLoaders.libraryItems.loadMany(
+        post.libraryItemIds
+      )
+      return items.filter((item) => !!item)
     },
-    highlights(
+    async highlights(
       post: { highlightIds: string[] },
       _: never,
       ctx: ResolverContext
     ) {
-      return ctx.dataLoaders.highlights.loadMany(post.highlightIds)
+      const highlights = await ctx.dataLoaders.highlights.loadMany(
+        post.highlightIds
+      )
+      return highlights.filter((highlight) => !!highlight)
     },
   },
   ...resultResolveTypeResolver('Login'),
diff --git a/packages/api/src/resolvers/posts/index.ts b/packages/api/src/resolvers/posts/index.ts
index 38326dc1a..c65fcab7d 100644
--- a/packages/api/src/resolvers/posts/index.ts
+++ b/packages/api/src/resolvers/posts/index.ts
@@ -121,6 +121,14 @@ export const createPostResolver = authorized<
   const { title, content, highlightIds, libraryItemIds, thought, thumbnail } =
     input
 
+  if (libraryItemIds.length === 0) {
+    log.error('Invalid args', { libraryItemIds })
+
+    return {
+      errorCodes: [CreatePostErrorCode.BadRequest],
+    }
+  }
+
   const postToCreate = {
     userId: uid,
     title,
diff --git a/packages/api/src/schema.ts b/packages/api/src/schema.ts
index 3099e9b03..09840b724 100755
--- a/packages/api/src/schema.ts
+++ b/packages/api/src/schema.ts
@@ -3343,11 +3343,11 @@ const schema = gql`
     id: ID!
     title: String!
     content: String!
-    author: User!
+    author: String!
     ownedByViewer: Boolean!
     thumbnail: String
     thought: String
-    libraryItems: [Article!]!
+    libraryItems: [Article!]
     highlights: [Highlight!]
     createdAt: Date!
     updatedAt: Date!
@@ -3374,6 +3374,7 @@ const schema = gql`
 
   enum CreatePostErrorCode {
     UNAUTHORIZED
+    BAD_REQUEST
   }
 
   input UpdatePostInput {