diff --git a/app/blog/[identifier]/index.tsx b/app/blog/[identifier]/index.tsx
index 3a11e92..2e87ef4 100644
--- a/app/blog/[identifier]/index.tsx
+++ b/app/blog/[identifier]/index.tsx
@@ -44,7 +44,6 @@ export default function BlogPage() {
   const { identifier: blogId } = useLocalSearchParams<{
     identifier?: string;
   }>();
-  const authCtx = useContext(AuthContext);
 
   // TODO: This fetches way too often because authCtx is set multiple times
   // Find another way of getting logged-in user profile
@@ -53,12 +52,12 @@ export default function BlogPage() {
       const profile = await resolveProfile(blogId!);
       setProfile(profile);
       if (profile === undefined) return;
-      const fetchedThreads = await fetchBlogPosts(profile, authCtx);
+      const fetchedThreads = await fetchBlogPosts(profile);
       // console.log(fetchedThreads);
       setThreads(fetchedThreads);
       setLoading(false);
     })();
-  }, [authCtx, blogId]);
+  }, [blogId]);
 
   return (
     <>
diff --git a/src/components/NavBar.tsx b/src/components/NavBar.tsx
index 7acef98..6bb0eaf 100644
--- a/src/components/NavBar.tsx
+++ b/src/components/NavBar.tsx
@@ -1,5 +1,11 @@
 import { useRouter } from "expo-router";
-import { Button, StyleSheet, TouchableWithoutFeedback, View } from "react-native";
+import { useContext } from "react";
+import {
+  Button,
+  StyleSheet,
+  View,
+} from "react-native";
+import { AuthContext } from "../context/AuthContext";
 
 const styles = StyleSheet.create({
   alignLeft: {
@@ -20,15 +26,17 @@ const styles = StyleSheet.create({
     alignItems: "center",
   },
   navBar: {
-    padding: 10
-  }
+    padding: 10,
+  },
 });
 
 export default function NavBar() {
-  const router = useRouter()
+  const router = useRouter();
+  const authCtx = useContext(AuthContext);
   const openComposer = () => {
-    router.push("/new")
-  }
+    if (!authCtx.agent) router.navigate("/login");
+    else router.push("/new");
+  };
 
   return (
     <View style={styles.navBarWrapper}>
diff --git a/src/components/PostInteraction.tsx b/src/components/PostInteraction.tsx
index 5c7fda3..e90aaf1 100644
--- a/src/components/PostInteraction.tsx
+++ b/src/components/PostInteraction.tsx
@@ -12,6 +12,7 @@ import { useContext, useEffect, useState } from "react";
 import { AuthContext } from "../context/AuthContext";
 import { Text } from "./primitive/Text";
 import FontAwesome from "@expo/vector-icons/FontAwesome";
+import { useRouter } from "expo-router";
 
 export function PostNotesIndicator({ post }: { post: Post }) {
   const [count, setCount] = useState<number>();
@@ -45,6 +46,7 @@ export function PostNotesIndicator({ post }: { post: Post }) {
 }
 
 export function PostInteractionButtons({ post }: { post: Post }) {
+  const router = useRouter();
   const authCtx = useContext(AuthContext);
   const [postInteractions, setPostInteractions] = useState<PostInteractions>({
     liked: undefined,
@@ -53,29 +55,39 @@ export function PostInteractionButtons({ post }: { post: Post }) {
 
   useEffect(() => {
     (async () => {
-      const fetchedStatus = await fetchUserPostInteractions(
-        post,
-        authCtx.agent?.did!,
-      );
+      const fetchedStatus =
+        authCtx.agent && authCtx.agent.did
+          ? await fetchUserPostInteractions(post, authCtx.agent.did)
+          : ({} as PostInteractions);
       setPostInteractions(fetchedStatus);
     })();
   }, [post, authCtx]);
 
   const setLike = async (newLike: boolean) => {
+    if (!authCtx.client) {
+      router.navigate("/login");
+      return;
+    }
+
     const newPostInteractions = await setLikePost(
       newLike,
       post,
       postInteractions,
-      authCtx.client!,
+      authCtx.client,
     );
     setPostInteractions(newPostInteractions);
   };
 
   const addReblog = async () => {
+    if (!authCtx.client) {
+      router.navigate("/login");
+      return;
+    }
+
     const newPostInteractions = await addPostReblog(
       post,
       postInteractions,
-      authCtx.client!,
+      authCtx.client,
     );
     setPostInteractions(newPostInteractions);
   };
@@ -112,7 +124,6 @@ export function PostLike({
   );
 }
 
-
 export function PostReblog({
   reblogged,
   addPostReblog,
diff --git a/src/lib/query/feed.ts b/src/lib/query/feed.ts
index 8a7557a..0f7045b 100644
--- a/src/lib/query/feed.ts
+++ b/src/lib/query/feed.ts
@@ -141,7 +141,7 @@ export async function fetchPostThread(
 }
 
 // Fetch posts from a given blog
-export async function fetchBlogPosts(profile: Profile, authCtx: AuthState) {
+export async function fetchBlogPosts(profile: Profile) {
   // Get records for user
   // TODO: Get latest n post and cursor support
   const result = await getAgent(profile.pds).com.atproto.repo.listRecords({