somewhat better error handling

src/Components/Private/Edit/EditSystem.js

@@ -16,8 +16,9 @@ const EditSystem = ({
   editDesc,
   setEditMode,
   setErrorAlert,
-  setUser,
   user,
+  setUser,
+  setErrorMessage
 }) => {
   const [invalidTimezone, setInvalidTimezone] = useState(false);
 
@@ -38,7 +39,11 @@ const EditSystem = ({
         Authorization: localStorage.getItem("token"),
       },
     })
-      .then((res) => res.json())
+      .then((res) => {
+        if (!res.ok)
+          throw new Error('HTTP Status ' + res.status)
+        return res.json();
+      })
       .then(() => {
         setUser((prevState) => {
           return { ...prevState, ...data };
@@ -47,7 +52,14 @@ const EditSystem = ({
         setEditMode(false);
       })
       .catch((error) => {
-        console.error(error);
+        console.log(error);
+        setErrorMessage(error.message);
+        if (error.message === 'HTTP Status 401') {
+            setErrorMessage("Your token is invalid, please log out and enter a new token.")
+        };
+        if (error.message === 'HTTP Status 500') {
+          setErrorMessage("500: Internal server error.")
+        }
         setErrorAlert(true);
       });
   };

src/Components/Private/Edit/EditSystemPrivacy.js

@@ -10,6 +10,7 @@ const EditSystemPrivacy = ({
   setUser,
   user,
   setPrivacyEdit,
+  setErrorMessage
 }) => {
   const { register: registerPrivacy, handleSubmit: handleSubmitPrivacy } =
     useForm();
@@ -24,18 +25,29 @@ const EditSystemPrivacy = ({
         Authorization: localStorage.getItem("token"),
       },
     })
-      .then((res) => res.json())
+    .then((res) => {
-      .then((data) => {
+      if (!res.ok)
-        setUser((prevState) => {
+        throw new Error('HTTP Status ' + res.status)
-          return { ...prevState, ...data };
+      return res.json();
-        });
+    })
-        localStorage.setItem("user", JSON.stringify(user));
+    .then(() => {
-        setPrivacyEdit(false);
+      setUser((prevState) => {
-      })
+        return { ...prevState, ...data };
-      .catch((error) => {
-        console.error(error);
-        setErrorAlert(true);
       });
+      localStorage.setItem("user", JSON.stringify(user));
+      setPrivacyEdit(false);
+    })
+    .catch((error) => {
+      console.log(error);
+      setErrorMessage(error.message);
+      if (error.message === 'HTTP Status 401') {
+          setErrorMessage("Your token is invalid, please log out and enter a new token.")
+      };
+      if (error.message === 'HTTP Status 500') {
+        setErrorMessage("500: Internal server error.")
+      }
+      setErrorAlert(true);
+    });
   };
 
   return (

src/Components/Private/MemberCard.js

@@ -45,6 +45,7 @@ export default function MemberCard(props) {
     const [ errorAlert, setErrorAlert ] = useState(false);
     const [ wrongID, setWrongID ] = useState(false);
     const [ memberDeleted, setMemberDeleted ] = useState(false);
+    const [ errorMessage, setErrorMessage ] = useState("");
 
     const {
         register: registerEdit,
@@ -122,46 +123,45 @@ export default function MemberCard(props) {
     }
     }, [member.description, member.color, member.birthday, member.display_name, member.pronouns, member.avatar_url, member.proxy_tags, member.created, member.banner]);
 
-    const submitEdit = data => {
+    function submitEditPatch(data) {
-        props.edit(Object.assign(member, data));
-        
         fetch(`${API_URL}m/${member.id}`,{
             method: 'PATCH',
             body: JSON.stringify(data),
             headers: {
               'Content-Type': 'application/json',
               'Authorization': localStorage.getItem("token")
-            }}).then (res => res.json()
+            }}).then (res => {
+                if (!res.ok) {
+                    throw new Error('HTTP Status ' + res.status);
+                }
+                return res.json();
+            }
             ).then (data => { 
                 setMember(prevState => {return {...prevState, ...data}});
                 setErrorAlert(false);
                 setEditMode(false);
         }
             ).catch (error => {
-                console.error(error);
+                console.log(error);
+                setErrorMessage(error.message);
+                if (error.message === 'HTTP Status 401') {
+                    setErrorMessage("401: Your token is invalid, please log out and enter a new token.")
+                };
+                if (error.message === 'HTTP Status 500') {
+                    setErrorMessage("500: Internal server error.")
+                }
                 setErrorAlert(true);
             });
     }
 
+    const submitEdit = data => {
+        props.edit(Object.assign(member, data));
+        submitEditPatch(data);
+    }
+
     const submitPrivacy = data => {
         props.edit(Object.assign(member, data));
-
+        submitEditPatch(data);
-        fetch(`${API_URL}m/${member.id}`,{
-            method: 'PATCH',
-            body: JSON.stringify(data),
-            headers: {
-              'Content-Type': 'application/json',
-              'Authorization': localStorage.getItem("token")
-            }}).then (res => res.json()
-            ).then (data => {
-                setMember(prevState => {return {...prevState, ...data}});
-                setErrorAlert(false); 
-                setprivacyEdit(false)
-        }
-            ).catch (error => {
-                console.error(error);
-                setErrorAlert(true);
-             })
     }
 
     const deleteMember = data => {
@@ -232,7 +232,7 @@ export default function MemberCard(props) {
     function renderCard() {
         return (
             <BS.Card.Body style={{borderLeft: `5px solid #${color}` }}>
-                { errorAlert ? <BS.Alert variant="danger">Something went wrong, please try logging in and out again.</BS.Alert> : "" }
+                { errorAlert ? <BS.Alert variant="danger">{errorMessage}</BS.Alert> : "" }
                 { editMode ?
                 <>
                 <BS.Form id='Edit' onSubmit={handleSubmitEdit(submitEdit)}>

src/Components/Private/MemberPage.js

@@ -45,6 +45,7 @@ export default function MemberPage(props) {
     const [ errorAlert, setErrorAlert ] = useState(false);
     const [ wrongID, setWrongID ] = useState(false);
     const [ memberDeleted, setMemberDeleted ] = useState(false);
+    const [ errorMessage, setErrorMessage ] = useState("");
 
     const {
         register: registerEdit,
@@ -123,46 +124,45 @@ export default function MemberPage(props) {
     }
     }, [member.description, member.color, member.birthday, member.display_name, member.pronouns, member.avatar_url, member.proxy_tags, member.created, member.banner]);
 
-    const submitEdit = data => {
+    function submitEditPatch(data) {
-        props.edit(Object.assign(member, data));
-
         fetch(`${API_URL}m/${member.id}`,{
             method: 'PATCH',
             body: JSON.stringify(data),
             headers: {
               'Content-Type': 'application/json',
               'Authorization': localStorage.getItem("token")
-            }}).then (res => res.json()
+            }}).then (res => {
+                if (!res.ok) {
+                    throw new Error('HTTP Status ' + res.status);
+                }
+                return res.json();
+            }
             ).then (data => { 
                 setMember(prevState => {return {...prevState, ...data}});
                 setErrorAlert(false);
                 setEditMode(false);
         }
             ).catch (error => {
-                console.error(error);
+                console.log(error);
+                setErrorMessage(error.message);
+                if (error.message === 'HTTP Status 401') {
+                    setErrorMessage("Your token is invalid, please log out and enter a new token.")
+                };
+                if (error.message === 'HTTP Status 500') {
+                    setErrorMessage("500: Internal server error.")
+                }
                 setErrorAlert(true);
             });
     }
 
+    const submitEdit = data => {
+        props.edit(Object.assign(member, data));
+        submitEditPatch(data);
+    }
+
     const submitPrivacy = data => {
         props.edit(Object.assign(member, data));
-        
+        submitEditPatch(data);
-        fetch(`${API_URL}m/${member.id}`,{
-            method: 'PATCH',
-            body: JSON.stringify(data),
-            headers: {
-              'Content-Type': 'application/json',
-              'Authorization': localStorage.getItem("token")
-            }}).then (res => res.json()
-            ).then (data => {
-                setMember(prevState => {return {...prevState, ...data}});
-                setErrorAlert(false); 
-                setPrivacyMode(false)
-        }
-            ).catch (error => {
-                console.error(error);
-                setErrorAlert(true);
-             })
     }
 
     const deleteMember = data => {

src/Components/Private/System.js

@@ -12,7 +12,7 @@ import { FaAddressCard } from "react-icons/fa";
 import EditSystem from "./Edit/EditSystem.js";
 import EditSystemPrivacy from "./Edit/EditSystemPrivacy.js";
 
-export default function System(props) {
+export default function System() {
   // match the url, if there's a member ID there, don't render this component at all
   const match = useRouteMatch("/dash/:memberID");
 
@@ -35,6 +35,7 @@ export default function System(props) {
   const [privacyView, setPrivacyView] = useState(false);
 
   const [errorAlert, setErrorAlert] = useState(false);
+  const [ errorMessage, setErrorMessage ] = useState("");
 
   // this useEffect does a couple of things after the user is gotten from localstorage
   useEffect(() => {
@@ -126,7 +127,7 @@ export default function System(props) {
       <BS.Card.Body>
         {errorAlert ? (
           <BS.Alert variant="danger">
-            Something went wrong, please try logging in and out again.
+            {errorMessage}
           </BS.Alert>
         ) : (
           ""
@@ -143,6 +144,7 @@ export default function System(props) {
             user={user}
             setUser={setUser}
             setEditMode={setEditMode}
+            setErrorMessage={setErrorMessage}
           />
         ) : (
           <>
@@ -204,6 +206,7 @@ export default function System(props) {
                 setUser={setUser}
                 user={user}
                 setPrivacyEdit={setPrivacyEdit}
+                setErrorMessage={setErrorMessage}
               />
             ) : privacyView ? (
               <>

src/Pages/Home.js

@@ -1,4 +1,4 @@
-import React, { useEffect } from "react";
+import React, { useEffect, useState } from "react";
 import { useForm } from "react-hook-form";
 import * as fetch from 'node-fetch';
 
@@ -9,8 +9,10 @@ import { FaLockOpen, FaHome } from "react-icons/fa";
 
 import API_URL from "../Constants/constants.js";
 
-const Home = ({isInvalid, setIsInvalid, isLoading, setIsLoading, isSubmit, setIsSubmit, }) => {
+const Home = ({isInvalid, setIsInvalid, isLoading, setIsLoading, isSubmit, setIsSubmit, forceUpdate }) => {
-const { register, handleSubmit } = useForm();
+  const { register, handleSubmit } = useForm();
+
+  const [ errorMessage, setErrorMessage ] = useState("");
 
   // submit login form, add the token to the localstorage
   const onSubmit = (data) => {
@@ -32,9 +34,11 @@ const { register, handleSubmit } = useForm();
       },
     })
     // put all the system data in localstorage
-    // TODO: remove this from localstorage? since we know how to pass stuff along components now
+      .then((res) => {
-    // then push the user to the dash!
+        if (!res.ok)
-      .then((res) => res.json())
+          throw new Error('HTTP Status ' + res.status);
+        return res.json();
+      })
       .then((data) => {
         localStorage.setItem("user", JSON.stringify(data));
         setIsSubmit(true);
@@ -42,16 +46,27 @@ const { register, handleSubmit } = useForm();
         history.push("/dash");
       })
       // remove the token and user data from localstorage if there's an error, also set the token as invalid
-      // TODO: an error doesn't mean the token is invalid, change this depending on what error is thrown
       .catch((error) => {
         console.log(error);
         setIsInvalid(true);
+        setErrorMessage(error.message);
+        if (error.message === "HTTP Status 401")
+          errorMessage = "Your token is invalid."
         localStorage.removeItem("token");
         localStorage.removeItem("user");
         setIsLoading(false);
       });
   }
 
+  // Logout function
+  function logOut() {
+    setIsSubmit(false);
+    localStorage.removeItem("token");
+    localStorage.removeItem("user");
+    history.push("/");
+    forceUpdate();
+  };
+
   // when the homepage loads, check if there's a token, if there is, check if it's still valid
   // removing the dependency array causes a rerender loop, so just ignore ESlint here
   useEffect(() => {
@@ -110,7 +125,7 @@ const { register, handleSubmit } = useForm();
             {/* if the inserted token is invalid, show invalid error! 
               this also shows if the token used in checkLogIn() is invalid */}
             {isInvalid ? (
-              <BS.Alert variant="danger">Invalid token.</BS.Alert>
+              <BS.Alert variant="danger">{errorMessage}</BS.Alert>
             ) : (
               ""
             )}
@@ -121,11 +136,15 @@ const { register, handleSubmit } = useForm();
                   You are logged in already, click here to continue to the dash.
                 </p>
                 <BS.Button
-                  type="primary"
+                  variant="primary"
                   onClick={() => history.push("/dash")}
                 >
                   Continue to dash
                 </BS.Button>
+                <BS.Button style={{float: 'right'}} variant="danger"
+                  onClick={() => logOut()}
+                >Log out
+                </BS.Button>
               </>
             ) : (
               // otherwise, show login form