43 files changed, 643 insertions, 530 deletions
diff --git a/webui/src/.gitignore b/webui/src/.gitignore
index 5134e469..2ef0dba1 100644
--- a/webui/src/.gitignore
+++ b/webui/src/.gitignore
@@ -1 +1,4 @@
-fragmentTypes.js
+fragmentTypes.ts
+gqlTypes.ts
+*.generated.*
+schema.json
diff --git a/webui/src/App.js b/webui/src/App.tsx
index b9c57327..6f66a6ec 100644
--- a/webui/src/App.js
+++ b/webui/src/App.tsx
@@ -1,15 +1,18 @@
 import AppBar from '@material-ui/core/AppBar';
 import CssBaseline from '@material-ui/core/CssBaseline';
-import { createMuiTheme, ThemeProvider } from '@material-ui/core/styles';
-import { makeStyles } from '@material-ui/styles';
 import Toolbar from '@material-ui/core/Toolbar';
+import {
+  createMuiTheme,
+  ThemeProvider,
+  makeStyles,
+} from '@material-ui/core/styles';
 import React from 'react';
 import { Route, Switch } from 'react-router';
 import { Link } from 'react-router-dom';
 
+import CurrentIdentity from './CurrentIdentity';
 import BugQuery from './bug/BugQuery';
 import ListQuery from './list/ListQuery';
-import CurrentIdentity from './CurrentIdentity';
 
 const theme = createMuiTheme({
   palette: {
@@ -20,7 +23,9 @@ const theme = createMuiTheme({
 });
 
 const useStyles = makeStyles(theme => ({
-  offset: theme.mixins.toolbar,
+  offset: {
+    ...theme.mixins.toolbar,
+  },
   filler: {
     flexGrow: 1,
   },
@@ -46,7 +51,7 @@ export default function App() {
       <AppBar position="fixed" color="primary">
         <Toolbar>
           <Link to="/" className={classes.appTitle}>
-            <img src="logo.svg" className={classes.logo} alt="git-bug" />
+            <img src="/logo.svg" className={classes.logo} alt="git-bug" />
             git-bug
           </Link>
           <div className={classes.filler}></div>
diff --git a/webui/src/Author.graphql b/webui/src/Author.graphql
new file mode 100644
index 00000000..76d66b91
--- /dev/null
+++ b/webui/src/Author.graphql
@@ -0,0 +1,8 @@
+fragment authored on Authored {
+  author {
+    name
+    email
+    displayName
+    avatarUrl
+  }
+}
diff --git a/webui/src/Author.js b/webui/src/Author.tsx
index 237a7956..852cd2b7 100644
--- a/webui/src/Author.js
+++ b/webui/src/Author.tsx
@@ -1,9 +1,15 @@
-import gql from 'graphql-tag';
-import Tooltip from '@material-ui/core/Tooltip/Tooltip';
 import MAvatar from '@material-ui/core/Avatar';
+import Tooltip from '@material-ui/core/Tooltip/Tooltip';
 import React from 'react';
 
-const Author = ({ author, ...props }) => {
+import { AuthoredFragment } from './Author.generated';
+
+type Props = AuthoredFragment & {
+  className?: string;
+  bold?: boolean;
+};
+
+const Author = ({ author, ...props }: Props) => {
   if (!author.email) {
     return <span {...props}>{author.displayName}</span>;
   }
@@ -15,18 +21,7 @@ const Author = ({ author, ...props }) => {
   );
 };
 
-Author.fragment = gql`
-  fragment authored on Authored {
-    author {
-      name
-      email
-      displayName
-      avatarUrl
-    }
-  }
-`;
-
-export const Avatar = ({ author, ...props }) => {
+export const Avatar = ({ author, ...props }: Props) => {
   if (author.avatarUrl) {
     return <MAvatar src={author.avatarUrl} {...props} />;
   }
diff --git a/webui/src/Content.js b/webui/src/Content.tsx
index 3a6900bc..3a7af2f8 100644
--- a/webui/src/Content.js
+++ b/webui/src/Content.tsx
@@ -1,11 +1,14 @@
-import unified from 'unified';
-import parse from 'remark-parse';
+import React from 'react';
 import html from 'remark-html';
+import parse from 'remark-parse';
 import remark2react from 'remark-react';
+import unified from 'unified';
+
 import ImageTag from './tag/ImageTag';
 import PreTag from './tag/PreTag';
 
-const Content = ({ markdown }) => {
+type Props = { markdown: string };
+const Content: React.FC<Props> = ({ markdown }: Props) => {
   const processor = unified()
     .use(parse)
     .use(html)
@@ -16,7 +19,8 @@ const Content = ({ markdown }) => {
       },
     });
 
-  return processor.processSync(markdown).contents;
+  const contents: React.ReactNode = processor.processSync(markdown).contents;
+  return <>{contents}</>;
 };
 
 export default Content;
diff --git a/webui/src/CurrentIdentity.graphql b/webui/src/CurrentIdentity.graphql
new file mode 100644
index 00000000..2794a40f
--- /dev/null
+++ b/webui/src/CurrentIdentity.graphql
@@ -0,0 +1,8 @@
+query CurrentIdentity {
+  repository {
+    userIdentity {
+      displayName
+      avatarUrl
+    }
+  }
+}
diff --git a/webui/src/CurrentIdentity.js b/webui/src/CurrentIdentity.js
deleted file mode 100644
index 451979fb..00000000
--- a/webui/src/CurrentIdentity.js
+++ /dev/null
@@ -1,45 +0,0 @@
-import React from 'react';
-import gql from 'graphql-tag';
-import { Query } from 'react-apollo';
-import Avatar from '@material-ui/core/Avatar';
-import { makeStyles } from '@material-ui/styles';
-
-const useStyles = makeStyles(theme => ({
-  displayName: {
-    marginLeft: theme.spacing(2),
-  },
-}));
-
-const QUERY = gql`
-  {
-    defaultRepository {
-      userIdentity {
-        displayName
-        avatarUrl
-      }
-    }
-  }
-`;
-
-const CurrentIdentity = () => {
-  const classes = useStyles();
-  return (
-    <Query query={QUERY}>
-      {({ loading, error, data }) => {
-        if (error || loading || !data.defaultRepository.userIdentity)
-          return null;
-        const user = data.defaultRepository.userIdentity;
-        return (
-          <>
-            <Avatar src={user.avatarUrl}>
-              {user.displayName.charAt(0).toUpperCase()}
-            </Avatar>
-            <div className={classes.displayName}>{user.displayName}</div>
-          </>
-        );
-      }}
-    </Query>
-  );
-};
-
-export default CurrentIdentity;
diff --git a/webui/src/CurrentIdentity.tsx b/webui/src/CurrentIdentity.tsx
new file mode 100644
index 00000000..256f44c4
--- /dev/null
+++ b/webui/src/CurrentIdentity.tsx
@@ -0,0 +1,30 @@
+import Avatar from '@material-ui/core/Avatar';
+import { makeStyles } from '@material-ui/core/styles';
+import React from 'react';
+
+import { useCurrentIdentityQuery } from './CurrentIdentity.generated';
+
+const useStyles = makeStyles(theme => ({
+  displayName: {
+    marginLeft: theme.spacing(2),
+  },
+}));
+
+const CurrentIdentity = () => {
+  const classes = useStyles();
+  const { loading, error, data } = useCurrentIdentityQuery();
+
+  if (error || loading || !data?.repository?.userIdentity) return null;
+
+  const user = data.repository.userIdentity;
+  return (
+    <>
+      <Avatar src={user.avatarUrl ? user.avatarUrl : undefined}>
+        {user.displayName.charAt(0).toUpperCase()}
+      </Avatar>
+      <div className={classes.displayName}>{user.displayName}</div>
+    </>
+  );
+};
+
+export default CurrentIdentity;
diff --git a/webui/src/Date.js b/webui/src/Date.tsx
index 46741924..9380d2fc 100644
--- a/webui/src/Date.js
+++ b/webui/src/Date.tsx
@@ -1,8 +1,9 @@
 import Tooltip from '@material-ui/core/Tooltip/Tooltip';
-import * as moment from 'moment';
+import moment from 'moment';
 import React from 'react';
 
-const Date = ({ date }) => (
+type Props = { date: string };
+const Date = ({ date }: Props) => (
   <Tooltip title={moment(date).format('MMMM D, YYYY, h:mm a')}>
     <span> {moment(date).fromNow()} </span>
   </Tooltip>
diff --git a/webui/src/Label.graphql b/webui/src/Label.graphql
new file mode 100644
index 00000000..22522ada
--- /dev/null
+++ b/webui/src/Label.graphql
@@ -0,0 +1,8 @@
+fragment Label on Label {
+  name
+  color {
+    R
+    G
+    B
+  }
+}
diff --git a/webui/src/Label.js b/webui/src/Label.tsx
index e5b00b12..a33b4c2c 100644
--- a/webui/src/Label.js
+++ b/webui/src/Label.tsx
@@ -1,25 +1,28 @@
-import React from 'react';
-import gql from 'graphql-tag';
-import { makeStyles } from '@material-ui/styles';
+import { common } from '@material-ui/core/colors';
+import { makeStyles } from '@material-ui/core/styles';
 import {
   getContrastRatio,
   darken,
 } from '@material-ui/core/styles/colorManipulator';
-import { common } from '@material-ui/core/colors';
+import React from 'react';
+
+import { LabelFragment } from './Label.generated';
+import { Color } from './gqlTypes';
 
 // Minimum contrast between the background and the text color
 const contrastThreshold = 2.5;
 
 // Guess the text color based on the background color
-const getTextColor = background =>
+const getTextColor = (background: string) =>
   getContrastRatio(background, common.white) >= contrastThreshold
     ? common.white // White on dark backgrounds
     : common.black; // And black on light ones
 
-const _rgb = color => 'rgb(' + color.R + ',' + color.G + ',' + color.B + ')';
+const _rgb = (color: Color) =>
+  'rgb(' + color.R + ',' + color.G + ',' + color.B + ')';
 
 // Create a style object from the label RGB colors
-const createStyle = color => ({
+const createStyle = (color: Color) => ({
   backgroundColor: _rgb(color),
   color: getTextColor(_rgb(color)),
   borderBottomColor: darken(_rgb(color), 0.2),
@@ -30,7 +33,7 @@ const useStyles = makeStyles(theme => ({
     ...theme.typography.body1,
     padding: '1px 6px 0.5px',
     fontSize: '0.9em',
-    fontWeight: '500',
+    fontWeight: 500,
     margin: '0.05em 1px calc(-1.5px + 0.05em)',
     borderRadius: '3px',
     display: 'inline-block',
@@ -39,7 +42,8 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-function Label({ label }) {
+type Props = { label: LabelFragment };
+function Label({ label }: Props) {
   const classes = useStyles();
   return (
     <span className={classes.label} style={createStyle(label.color)}>
@@ -48,15 +52,4 @@ function Label({ label }) {
   );
 }
 
-Label.fragment = gql`
-  fragment Label on Label {
-    name
-    color {
-      R
-      G
-      B
-    }
-  }
-`;
-
 export default Label;
diff --git a/webui/src/__tests__/query.js b/webui/src/__tests__/query.ts
index 5f4b58eb..5f4b58eb 100644
--- a/webui/src/__tests__/query.js
+++ b/webui/src/__tests__/query.ts
diff --git a/webui/src/bug/Bug.graphql b/webui/src/bug/Bug.graphql
new file mode 100644
index 00000000..112024aa
--- /dev/null
+++ b/webui/src/bug/Bug.graphql
@@ -0,0 +1,14 @@
+#import "../Label.graphql"
+#import "../Author.graphql"
+
+fragment Bug on Bug {
+  id
+  humanId
+  status
+  title
+  labels {
+    ...Label
+  }
+  createdAt
+  ...authored
+}
diff --git a/webui/src/bug/Bug.js b/webui/src/bug/Bug.tsx
index 5a159f0f..f4029a5f 100644
--- a/webui/src/bug/Bug.js
+++ b/webui/src/bug/Bug.tsx
@@ -1,12 +1,14 @@
-import { makeStyles } from '@material-ui/styles';
 import Typography from '@material-ui/core/Typography/Typography';
-import gql from 'graphql-tag';
+import { makeStyles } from '@material-ui/core/styles';
 import React from 'react';
+
 import Author from '../Author';
 import Date from '../Date';
-import TimelineQuery from './TimelineQuery';
 import Label from '../Label';
 
+import { BugFragment } from './Bug.generated';
+import TimelineQuery from './TimelineQuery';
+
 const useStyles = makeStyles(theme => ({
   main: {
     maxWidth: 800,
@@ -51,7 +53,11 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-function Bug({ bug }) {
+type Props = {
+  bug: BugFragment;
+};
+
+function Bug({ bug }: Props) {
   const classes = useStyles();
   return (
     <main className={classes.main}>
@@ -85,20 +91,4 @@ function Bug({ bug }) {
   );
 }
 
-Bug.fragment = gql`
-  fragment Bug on Bug {
-    id
-    humanId
-    status
-    title
-    labels {
-      ...Label
-    }
-    createdAt
-    ...authored
-  }
-  ${Label.fragment}
-  ${Author.fragment}
-`;
-
 export default Bug;
diff --git a/webui/src/bug/BugQuery.graphql b/webui/src/bug/BugQuery.graphql
new file mode 100644
index 00000000..cdc4723f
--- /dev/null
+++ b/webui/src/bug/BugQuery.graphql
@@ -0,0 +1,9 @@
+#import "./Bug.graphql"
+
+query GetBug($id: String!) {
+  repository {
+    bug(prefix: $id) {
+      ...Bug
+    }
+  }
+}
diff --git a/webui/src/bug/BugQuery.js b/webui/src/bug/BugQuery.js
deleted file mode 100644
index dbf24c31..00000000
--- a/webui/src/bug/BugQuery.js
+++ /dev/null
@@ -1,30 +0,0 @@
-import CircularProgress from '@material-ui/core/CircularProgress';
-import gql from 'graphql-tag';
-import React from 'react';
-import { Query } from 'react-apollo';
-
-import Bug from './Bug';
-
-const QUERY = gql`
-  query GetBug($id: String!) {
-    defaultRepository {
-      bug(prefix: $id) {
-        ...Bug
-      }
-    }
-  }
-
-  ${Bug.fragment}
-`;
-
-const BugQuery = ({ match }) => (
-  <Query query={QUERY} variables={{ id: match.params.id }}>
-    {({ loading, error, data }) => {
-      if (loading) return <CircularProgress />;
-      if (error) return <p>Error: {error}</p>;
-      return <Bug bug={data.defaultRepository.bug} />;
-    }}
-  </Query>
-);
-
-export default BugQuery;
diff --git a/webui/src/bug/BugQuery.tsx b/webui/src/bug/BugQuery.tsx
new file mode 100644
index 00000000..2ecf718c
--- /dev/null
+++ b/webui/src/bug/BugQuery.tsx
@@ -0,0 +1,22 @@
+import CircularProgress from '@material-ui/core/CircularProgress';
+import React from 'react';
+import { RouteComponentProps } from 'react-router-dom';
+
+import Bug from './Bug';
+import { useGetBugQuery } from './BugQuery.generated';
+
+type Props = RouteComponentProps<{
+  id: string;
+}>;
+
+const BugQuery: React.FC<Props> = ({ match }: Props) => {
+  const { loading, error, data } = useGetBugQuery({
+    variables: { id: match.params.id },
+  });
+  if (loading) return <CircularProgress />;
+  if (error) return <p>Error: {error}</p>;
+  if (!data?.repository?.bug) return <p>404.</p>;
+  return <Bug bug={data.repository.bug} />;
+};
+
+export default BugQuery;
diff --git a/webui/src/bug/LabelChange.js b/webui/src/bug/LabelChange.tsx
index 4773e7eb..572579bd 100644
--- a/webui/src/bug/LabelChange.js
+++ b/webui/src/bug/LabelChange.tsx
@@ -1,10 +1,12 @@
-import { makeStyles } from '@material-ui/styles';
-import gql from 'graphql-tag';
+import { makeStyles } from '@material-ui/core/styles';
 import React from 'react';
+
 import Author from '../Author';
 import Date from '../Date';
 import Label from '../Label';
 
+import { LabelChangeFragment } from './LabelChangeFragment.generated';
+
 const useStyles = makeStyles(theme => ({
   main: {
     ...theme.typography.body1,
@@ -15,7 +17,11 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-function LabelChange({ op }) {
+type Props = {
+  op: LabelChangeFragment;
+};
+
+function LabelChange({ op }: Props) {
   const { added, removed } = op;
   const classes = useStyles();
   return (
@@ -40,22 +46,4 @@ function LabelChange({ op }) {
   );
 }
 
-LabelChange.fragment = gql`
-  fragment LabelChange on TimelineItem {
-    ... on LabelChangeTimelineItem {
-      date
-      ...authored
-      added {
-        ...Label
-      }
-      removed {
-        ...Label
-      }
-    }
-  }
-
-  ${Label.fragment}
-  ${Author.fragment}
-`;
-
 export default LabelChange;
diff --git a/webui/src/bug/LabelChangeFragment.graphql b/webui/src/bug/LabelChangeFragment.graphql
new file mode 100644
index 00000000..631de70c
--- /dev/null
+++ b/webui/src/bug/LabelChangeFragment.graphql
@@ -0,0 +1,13 @@
+#import "../Author.graphql"
+#import "../Label.graphql"
+
+fragment LabelChange on LabelChangeTimelineItem {
+  date
+  ...authored
+  added {
+    ...Label
+  }
+  removed {
+    ...Label
+  }
+}
diff --git a/webui/src/bug/Message.js b/webui/src/bug/Message.tsx
index 06c12815..c8d0710d 100644
--- a/webui/src/bug/Message.js
+++ b/webui/src/bug/Message.tsx
@@ -1,11 +1,14 @@
-import { makeStyles } from '@material-ui/styles';
 import Paper from '@material-ui/core/Paper';
-import gql from 'graphql-tag';
+import { makeStyles } from '@material-ui/core/styles';
 import React from 'react';
+
 import Author from '../Author';
 import { Avatar } from '../Author';
-import Date from '../Date';
 import Content from '../Content';
+import Date from '../Date';
+
+import { AddCommentFragment } from './MessageCommentFragment.generated';
+import { CreateFragment } from './MessageCreateFragment.generated';
 
 const useStyles = makeStyles(theme => ({
   author: {
@@ -47,7 +50,11 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-function Message({ op }) {
+type Props = {
+  op: AddCommentFragment | CreateFragment;
+};
+
+function Message({ op }: Props) {
   const classes = useStyles();
   return (
     <article className={classes.container}>
@@ -69,30 +76,4 @@ function Message({ op }) {
   );
 }
 
-Message.createFragment = gql`
-  fragment Create on TimelineItem {
-    ... on CreateTimelineItem {
-      createdAt
-      ...authored
-      edited
-      message
-    }
-  }
-
-  ${Author.fragment}
-`;
-
-Message.commentFragment = gql`
-  fragment AddComment on TimelineItem {
-    ... on AddCommentTimelineItem {
-      createdAt
-      ...authored
-      edited
-      message
-    }
-  }
-
-  ${Author.fragment}
-`;
-
 export default Message;
diff --git a/webui/src/bug/MessageCommentFragment.graphql b/webui/src/bug/MessageCommentFragment.graphql
new file mode 100644
index 00000000..38d626d0
--- /dev/null
+++ b/webui/src/bug/MessageCommentFragment.graphql
@@ -0,0 +1,8 @@
+#import "../Author.graphql"
+
+fragment AddComment on AddCommentTimelineItem {
+  createdAt
+  ...authored
+  edited
+  message
+}
diff --git a/webui/src/bug/MessageCreateFragment.graphql b/webui/src/bug/MessageCreateFragment.graphql
new file mode 100644
index 00000000..08477470
--- /dev/null
+++ b/webui/src/bug/MessageCreateFragment.graphql
@@ -0,0 +1,8 @@
+#import "../Author.graphql"
+
+fragment Create on CreateTimelineItem {
+  createdAt
+  ...authored
+  edited
+  message
+}
diff --git a/webui/src/bug/SetStatus.js b/webui/src/bug/SetStatus.tsx
index 070bbb8f..3e1a7989 100644
--- a/webui/src/bug/SetStatus.js
+++ b/webui/src/bug/SetStatus.tsx
@@ -1,9 +1,11 @@
-import { makeStyles } from '@material-ui/styles';
-import gql from 'graphql-tag';
+import { makeStyles } from '@material-ui/core/styles';
 import React from 'react';
+
 import Author from '../Author';
 import Date from '../Date';
 
+import { SetStatusFragment } from './SetStatusFragment.generated';
+
 const useStyles = makeStyles(theme => ({
   main: {
     ...theme.typography.body1,
@@ -11,7 +13,11 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-function SetStatus({ op }) {
+type Props = {
+  op: SetStatusFragment;
+};
+
+function SetStatus({ op }: Props) {
   const classes = useStyles();
   return (
     <div className={classes.main}>
@@ -22,16 +28,4 @@ function SetStatus({ op }) {
   );
 }
 
-SetStatus.fragment = gql`
-  fragment SetStatus on TimelineItem {
-    ... on SetStatusTimelineItem {
-      date
-      ...authored
-      status
-    }
-  }
-
-  ${Author.fragment}
-`;
-
 export default SetStatus;
diff --git a/webui/src/bug/SetStatusFragment.graphql b/webui/src/bug/SetStatusFragment.graphql
new file mode 100644
index 00000000..0fdea01b
--- /dev/null
+++ b/webui/src/bug/SetStatusFragment.graphql
@@ -0,0 +1,7 @@
+#import "../Author.graphql"
+
+fragment SetStatus on SetStatusTimelineItem {
+  date
+  ...authored
+  status
+}
diff --git a/webui/src/bug/SetTitle.js b/webui/src/bug/SetTitle.tsx
index e4c30a8d..0b088e0b 100644
--- a/webui/src/bug/SetTitle.js
+++ b/webui/src/bug/SetTitle.tsx
@@ -1,9 +1,11 @@
-import { makeStyles } from '@material-ui/styles';
-import gql from 'graphql-tag';
+import { makeStyles } from '@material-ui/core/styles';
 import React from 'react';
+
 import Author from '../Author';
 import Date from '../Date';
 
+import { SetTitleFragment } from './SetTitleFragment.generated';
+
 const useStyles = makeStyles(theme => ({
   main: {
     ...theme.typography.body1,
@@ -14,7 +16,11 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-function SetTitle({ op }) {
+type Props = {
+  op: SetTitleFragment;
+};
+
+function SetTitle({ op }: Props) {
   const classes = useStyles();
   return (
     <div className={classes.main}>
@@ -28,17 +34,4 @@ function SetTitle({ op }) {
   );
 }
 
-SetTitle.fragment = gql`
-  fragment SetTitle on TimelineItem {
-    ... on SetTitleTimelineItem {
-      date
-      ...authored
-      title
-      was
-    }
-  }
-
-  ${Author.fragment}
-`;
-
 export default SetTitle;
diff --git a/webui/src/bug/SetTitleFragment.graphql b/webui/src/bug/SetTitleFragment.graphql
new file mode 100644
index 00000000..432c4449
--- /dev/null
+++ b/webui/src/bug/SetTitleFragment.graphql
@@ -0,0 +1,8 @@
+#import "../Author.graphql"
+
+fragment SetTitle on SetTitleTimelineItem {
+  date
+  ...authored
+  title
+  was
+}
diff --git a/webui/src/bug/Timeline.js b/webui/src/bug/Timeline.js
deleted file mode 100644
index 7d1946f2..00000000
--- a/webui/src/bug/Timeline.js
+++ /dev/null
@@ -1,43 +0,0 @@
-import { makeStyles } from '@material-ui/styles';
-import React from 'react';
-import LabelChange from './LabelChange';
-import Message from './Message';
-import SetStatus from './SetStatus';
-import SetTitle from './SetTitle';
-
-const useStyles = makeStyles(theme => ({
-  main: {
-    '& > *:not(:last-child)': {
-      marginBottom: theme.spacing(2),
-    },
-  },
-}));
-
-const componentMap = {
-  CreateTimelineItem: Message,
-  AddCommentTimelineItem: Message,
-  LabelChangeTimelineItem: LabelChange,
-  SetTitleTimelineItem: SetTitle,
-  SetStatusTimelineItem: SetStatus,
-};
-
-function Timeline({ ops }) {
-  const classes = useStyles();
-
-  return (
-    <div className={classes.main}>
-      {ops.map((op, index) => {
-        const Component = componentMap[op.__typename];
-
-        if (!Component) {
-          console.warn('unsupported operation type ' + op.__typename);
-          return null;
-        }
-
-        return <Component key={index} op={op} />;
-      })}
-    </div>
-  );
-}
-
-export default Timeline;
diff --git a/webui/src/bug/Timeline.tsx b/webui/src/bug/Timeline.tsx
new file mode 100644
index 00000000..ba0f9fc7
--- /dev/null
+++ b/webui/src/bug/Timeline.tsx
@@ -0,0 +1,48 @@
+import { makeStyles } from '@material-ui/core/styles';
+import React from 'react';
+
+import LabelChange from './LabelChange';
+import Message from './Message';
+import SetStatus from './SetStatus';
+import SetTitle from './SetTitle';
+import { TimelineItemFragment } from './TimelineQuery.generated';
+
+const useStyles = makeStyles(theme => ({
+  main: {
+    '& > *:not(:last-child)': {
+      marginBottom: theme.spacing(2),
+    },
+  },
+}));
+
+type Props = {
+  ops: Array<TimelineItemFragment>;
+};
+
+function Timeline({ ops }: Props) {
+  const classes = useStyles();
+
+  return (
+    <div className={classes.main}>
+      {ops.map((op, index) => {
+        switch (op.__typename) {
+          case 'CreateTimelineItem':
+            return <Message key={index} op={op} />;
+          case 'AddCommentTimelineItem':
+            return <Message key={index} op={op} />;
+          case 'LabelChangeTimelineItem':
+            return <LabelChange key={index} op={op} />;
+          case 'SetTitleTimelineItem':
+            return <SetTitle key={index} op={op} />;
+          case 'SetStatusTimelineItem':
+            return <SetStatus key={index} op={op} />;
+        }
+
+        console.warn('unsupported operation type ' + op.__typename);
+        return null;
+      })}
+    </div>
+  );
+}
+
+export default Timeline;
diff --git a/webui/src/bug/TimelineQuery.graphql b/webui/src/bug/TimelineQuery.graphql
new file mode 100644
index 00000000..6d78ab7f
--- /dev/null
+++ b/webui/src/bug/TimelineQuery.graphql
@@ -0,0 +1,39 @@
+#import "./MessageCreateFragment.graphql"
+#import "./MessageCommentFragment.graphql"
+#import "./LabelChangeFragment.graphql"
+#import "./SetTitleFragment.graphql"
+#import "./SetStatusFragment.graphql"
+
+query Timeline($id: String!, $first: Int = 10, $after: String) {
+  repository {
+    bug(prefix: $id) {
+      timeline(first: $first, after: $after) {
+        nodes {
+          ...TimelineItem
+        }
+        pageInfo {
+          hasNextPage
+          endCursor
+        }
+      }
+    }
+  }
+}
+
+fragment TimelineItem on TimelineItem {
+  ... on LabelChangeTimelineItem {
+    ...LabelChange
+  }
+  ... on SetStatusTimelineItem {
+    ...SetStatus
+  }
+  ... on SetTitleTimelineItem {
+    ...SetTitle
+  }
+  ... on AddCommentTimelineItem {
+    ...AddComment
+  }
+  ... on CreateTimelineItem {
+    ...Create
+  }
+}
diff --git a/webui/src/bug/TimelineQuery.js b/webui/src/bug/TimelineQuery.js
deleted file mode 100644
index ebb20f9d..00000000
--- a/webui/src/bug/TimelineQuery.js
+++ /dev/null
@@ -1,53 +0,0 @@
-import CircularProgress from '@material-ui/core/CircularProgress';
-import gql from 'graphql-tag';
-import React from 'react';
-import { Query } from 'react-apollo';
-import LabelChange from './LabelChange';
-import SetStatus from './SetStatus';
-import SetTitle from './SetTitle';
-import Timeline from './Timeline';
-import Message from './Message';
-
-const QUERY = gql`
-  query($id: String!, $first: Int = 10, $after: String) {
-    defaultRepository {
-      bug(prefix: $id) {
-        timeline(first: $first, after: $after) {
-          nodes {
-            ...LabelChange
-            ...SetStatus
-            ...SetTitle
-            ...AddComment
-            ...Create
-          }
-          pageInfo {
-            hasNextPage
-            endCursor
-          }
-        }
-      }
-    }
-  }
-  ${Message.createFragment}
-  ${Message.commentFragment}
-  ${LabelChange.fragment}
-  ${SetTitle.fragment}
-  ${SetStatus.fragment}
-`;
-
-const TimelineQuery = ({ id }) => (
-  <Query query={QUERY} variables={{ id, first: 100 }}>
-    {({ loading, error, data, fetchMore }) => {
-      if (loading) return <CircularProgress />;
-      if (error) return <p>Error: {error}</p>;
-      return (
-        <Timeline
-          ops={data.defaultRepository.bug.timeline.nodes}
-          fetchMore={fetchMore}
-        />
-      );
-    }}
-  </Query>
-);
-
-export default TimelineQuery;
diff --git a/webui/src/bug/TimelineQuery.tsx b/webui/src/bug/TimelineQuery.tsx
new file mode 100644
index 00000000..9c4cf183
--- /dev/null
+++ b/webui/src/bug/TimelineQuery.tsx
@@ -0,0 +1,30 @@
+import CircularProgress from '@material-ui/core/CircularProgress';
+import React from 'react';
+
+import Timeline from './Timeline';
+import { useTimelineQuery } from './TimelineQuery.generated';
+
+type Props = {
+  id: string;
+};
+
+const TimelineQuery = ({ id }: Props) => {
+  const { loading, error, data } = useTimelineQuery({
+    variables: {
+      id,
+      first: 100,
+    },
+  });
+
+  if (loading) return <CircularProgress />;
+  if (error) return <p>Error: {error}</p>;
+
+  const nodes = data?.repository?.bug?.timeline.nodes;
+  if (!nodes) {
+    return null;
+  }
+
+  return <Timeline ops={nodes} />;
+};
+
+export default TimelineQuery;
diff --git a/webui/src/index.js b/webui/src/index.tsx
index 6f838c69..c64daf0c 100644
--- a/webui/src/index.js
+++ b/webui/src/index.tsx
@@ -1,5 +1,5 @@
-import ThemeProvider from '@material-ui/styles/ThemeProvider';
 import { createMuiTheme } from '@material-ui/core/styles';
+import ThemeProvider from '@material-ui/styles/ThemeProvider';
 import ApolloClient from 'apollo-boost';
 import {
   IntrospectionFragmentMatcher,
@@ -10,8 +10,8 @@ import { ApolloProvider } from 'react-apollo';
 import ReactDOM from 'react-dom';
 import { BrowserRouter } from 'react-router-dom';
 
-import introspectionQueryResultData from './fragmentTypes';
 import App from './App';
+import introspectionQueryResultData from './fragmentTypes';
 
 const theme = createMuiTheme();
 
diff --git a/webui/src/list/BugRow.graphql b/webui/src/list/BugRow.graphql
new file mode 100644
index 00000000..3f9a1ef6
--- /dev/null
+++ b/webui/src/list/BugRow.graphql
@@ -0,0 +1,14 @@
+#import "../Author.graphql"
+#import "../Label.graphql"
+
+fragment BugRow on Bug {
+  id
+  humanId
+  title
+  status
+  createdAt
+  labels {
+    ...Label
+  }
+  ...authored
+}
diff --git a/webui/src/list/BugRow.js b/webui/src/list/BugRow.tsx
index add5c12f..f94538a7 100644
--- a/webui/src/list/BugRow.js
+++ b/webui/src/list/BugRow.tsx
@@ -1,36 +1,43 @@
-import { makeStyles } from '@material-ui/styles';
 import TableCell from '@material-ui/core/TableCell/TableCell';
 import TableRow from '@material-ui/core/TableRow/TableRow';
 import Tooltip from '@material-ui/core/Tooltip/Tooltip';
-import ErrorOutline from '@material-ui/icons/ErrorOutline';
+import { makeStyles } from '@material-ui/core/styles';
 import CheckCircleOutline from '@material-ui/icons/CheckCircleOutline';
-import gql from 'graphql-tag';
+import ErrorOutline from '@material-ui/icons/ErrorOutline';
 import React from 'react';
 import { Link } from 'react-router-dom';
+
 import Date from '../Date';
 import Label from '../Label';
-import Author from '../Author';
+import { Status } from '../gqlTypes';
 
-const Open = ({ className }) => (
+import { BugRowFragment } from './BugRow.generated';
+
+type OpenClosedProps = { className: string };
+const Open = ({ className }: OpenClosedProps) => (
   <Tooltip title="Open">
     <ErrorOutline htmlColor="#28a745" className={className} />
   </Tooltip>
 );
 
-const Closed = ({ className }) => (
+const Closed = ({ className }: OpenClosedProps) => (
   <Tooltip title="Closed">
     <CheckCircleOutline htmlColor="#cb2431" className={className} />
   </Tooltip>
 );
 
-const Status = ({ status, className }) => {
+type StatusProps = { className: string; status: Status };
+const BugStatus: React.FC<StatusProps> = ({
+  status,
+  className,
+}: StatusProps) => {
   switch (status) {
     case 'OPEN':
       return <Open className={className} />;
     case 'CLOSED':
       return <Closed className={className} />;
     default:
-      return 'unknown status ' + status;
+      return <p>{'unknown status ' + status}</p>;
   }
 };
 
@@ -57,7 +64,6 @@ const useStyles = makeStyles(theme => ({
     fontWeight: 500,
   },
   details: {
-    ...theme.typography.textSecondary,
     lineHeight: '1.5rem',
     color: theme.palette.text.secondary,
   },
@@ -69,12 +75,16 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-function BugRow({ bug }) {
+type Props = {
+  bug: BugRowFragment;
+};
+
+function BugRow({ bug }: Props) {
   const classes = useStyles();
   return (
     <TableRow hover>
       <TableCell className={classes.cell}>
-        <Status status={bug.status} className={classes.status} />
+        <BugStatus status={bug.status} className={classes.status} />
         <div className={classes.expand}>
           <Link to={'bug/' + bug.humanId}>
             <div className={classes.expand}>
@@ -99,21 +109,4 @@ function BugRow({ bug }) {
   );
 }
 
-BugRow.fragment = gql`
-  fragment BugRow on Bug {
-    id
-    humanId
-    title
-    status
-    createdAt
-    labels {
-      ...Label
-    }
-    ...authored
-  }
-
-  ${Label.fragment}
-  ${Author.fragment}
-`;
-
 export default BugRow;
diff --git a/webui/src/list/Filter.js b/webui/src/list/Filter.tsx
index a6cf3633..30b52de8 100644
--- a/webui/src/list/Filter.js
+++ b/webui/src/list/Filter.tsx
@@ -1,13 +1,18 @@
-import React, { useState, useRef } from 'react';
-import { Link } from 'react-router-dom';
-import { makeStyles } from '@material-ui/styles';
 import Menu from '@material-ui/core/Menu';
 import MenuItem from '@material-ui/core/MenuItem';
+import { SvgIconProps } from '@material-ui/core/SvgIcon';
+import { makeStyles } from '@material-ui/core/styles';
 import ArrowDropDown from '@material-ui/icons/ArrowDropDown';
+import clsx from 'clsx';
+import { LocationDescriptor } from 'history';
+import React, { useState, useRef } from 'react';
+import { Link } from 'react-router-dom';
 
-function parse(query) {
+export type Query = { [key: string]: Array<string> };
+
+function parse(query: string): Query {
   // TODO: extract the rest of the query?
-  const params = {};
+  const params: Query = {};
 
   // TODO: support escaping without quotes
   const re = /(\w+):([A-Za-z0-9-]+|(["'])(([^\3]|\\.)*)\3)+/g;
@@ -29,7 +34,7 @@ function parse(query) {
   return params;
 }
 
-function quote(value) {
+function quote(value: string): string {
   const hasSingle = value.includes("'");
   const hasDouble = value.includes('"');
   const hasSpaces = value.includes(' ');
@@ -49,19 +54,19 @@ function quote(value) {
   return `"${value}"`;
 }
 
-function stringify(params) {
-  const parts = Object.entries(params).map(([key, values]) => {
+function stringify(params: Query): string {
+  const parts: string[][] = Object.entries(params).map(([key, values]) => {
     return values.map(value => `${key}:${quote(value)}`);
   });
-  return [].concat(...parts).join(' ');
+  return new Array<string>().concat(...parts).join(' ');
 }
 
 const useStyles = makeStyles(theme => ({
   element: {
     ...theme.typography.body2,
-    color: ({ active }) => (active ? '#333' : '#444'),
+    color: '#444',
     padding: theme.spacing(0, 1),
-    fontWeight: ({ active }) => (active ? 600 : 400),
+    fontWeight: 400,
     textDecoration: 'none',
     display: 'flex',
     background: 'none',
@@ -69,21 +74,51 @@ const useStyles = makeStyles(theme => ({
   },
   itemActive: {
     fontWeight: 600,
+    color: '#333',
   },
   icon: {
     paddingRight: theme.spacing(0.5),
   },
 }));
 
-function Dropdown({ children, dropdown, itemActive, to, ...props }) {
+type DropdownTuple = [string, string];
+
+type FilterDropdownProps = {
+  children: React.ReactNode;
+  dropdown: DropdownTuple[];
+  itemActive: (key: string) => boolean;
+  icon?: React.ComponentType<SvgIconProps>;
+  to: (key: string) => LocationDescriptor;
+} & React.ButtonHTMLAttributes<HTMLButtonElement>;
+
+function FilterDropdown({
+  children,
+  dropdown,
+  itemActive,
+  icon: Icon,
+  to,
+  ...props
+}: FilterDropdownProps) {
   const [open, setOpen] = useState(false);
-  const buttonRef = useRef();
-  const classes = useStyles();
+  const buttonRef = useRef<HTMLButtonElement>(null);
+  const classes = useStyles({ active: false });
+
+  const content = (
+    <>
+      {Icon && <Icon fontSize="small" classes={{ root: classes.icon }} />}
+      <div>{children}</div>
+    </>
+  );
 
   return (
     <>
-      <button ref={buttonRef} onClick={() => setOpen(!open)} {...props}>
-        {children}
+      <button
+        ref={buttonRef}
+        onClick={() => setOpen(!open)}
+        className={classes.element}
+        {...props}
+      >
+        {content}
         <ArrowDropDown fontSize="small" />
       </button>
       <Menu
@@ -104,7 +139,7 @@ function Dropdown({ children, dropdown, itemActive, to, ...props }) {
           <MenuItem
             component={Link}
             to={to(key)}
-            className={itemActive(key) ? classes.itemActive : null}
+            className={itemActive(key) ? classes.itemActive : undefined}
             onClick={() => setOpen(false)}
             key={key}
           >
@@ -116,8 +151,14 @@ function Dropdown({ children, dropdown, itemActive, to, ...props }) {
   );
 }
 
-function Filter({ active, to, children, icon: Icon, dropdown, ...props }) {
-  const classes = useStyles({ active });
+export type FilterProps = {
+  active: boolean;
+  to: LocationDescriptor;
+  icon?: React.ComponentType<SvgIconProps>;
+  children: React.ReactNode;
+};
+function Filter({ active, to, children, icon: Icon }: FilterProps) {
+  const classes = useStyles();
 
   const content = (
     <>
@@ -126,29 +167,23 @@ function Filter({ active, to, children, icon: Icon, dropdown, ...props }) {
     </>
   );
 
-  if (dropdown) {
+  if (to) {
     return (
-      <Dropdown
-        {...props}
+      <Link
         to={to}
-        dropdown={dropdown}
-        className={classes.element}
+        className={clsx(classes.element, active && classes.itemActive)}
       >
         {content}
-      </Dropdown>
-    );
-  }
-
-  if (to) {
-    return (
-      <Link to={to} {...props} className={classes.element}>
-        {content}
       </Link>
     );
   }
 
-  return <div className={classes.element}>{content}</div>;
+  return (
+    <div className={clsx(classes.element, active && classes.itemActive)}>
+      {content}
+    </div>
+  );
 }
 
 export default Filter;
-export { parse, stringify, quote };
+export { parse, stringify, quote, FilterDropdown, Filter };
diff --git a/webui/src/list/FilterToolbar.graphql b/webui/src/list/FilterToolbar.graphql
new file mode 100644
index 00000000..cd103f44
--- /dev/null
+++ b/webui/src/list/FilterToolbar.graphql
@@ -0,0 +1,7 @@
+query BugCount($query: String) {
+  repository {
+    bugs: allBugs(query: $query) {
+      totalCount
+    }
+  }
+}
diff --git a/webui/src/list/FilterToolbar.js b/webui/src/list/FilterToolbar.tsx
index 4d0b52b1..b95b10bc 100644
--- a/webui/src/list/FilterToolbar.js
+++ b/webui/src/list/FilterToolbar.tsx
@@ -1,16 +1,20 @@
-import { makeStyles } from '@material-ui/styles';
-import { useQuery } from '@apollo/react-hooks';
-import gql from 'graphql-tag';
-import React from 'react';
+import { pipe } from '@arrows/composition';
 import Toolbar from '@material-ui/core/Toolbar';
-import ErrorOutline from '@material-ui/icons/ErrorOutline';
+import { makeStyles } from '@material-ui/core/styles';
 import CheckCircleOutline from '@material-ui/icons/CheckCircleOutline';
-import Filter, { parse, stringify } from './Filter';
+import ErrorOutline from '@material-ui/icons/ErrorOutline';
+import { LocationDescriptor } from 'history';
+import React from 'react';
 
-// simple pipe operator
-// pipe(o, f, g, h) <=> h(g(f(o)))
-// TODO: move this out?
-const pipe = (initial, ...funcs) => funcs.reduce((acc, f) => f(acc), initial);
+import {
+  FilterDropdown,
+  FilterProps,
+  Filter,
+  parse,
+  stringify,
+  Query,
+} from './Filter';
+import { useBugCountQuery } from './FilterToolbar.generated';
 
 const useStyles = makeStyles(theme => ({
   toolbar: {
@@ -25,27 +29,21 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-const BUG_COUNT_QUERY = gql`
-  query($query: String) {
-    defaultRepository {
-      bugs: allBugs(query: $query) {
-        totalCount
-      }
-    }
-  }
-`;
-
 // This prepends the filter text with a count
-function CountingFilter({ query, children, ...props }) {
-  const { data, loading, error } = useQuery(BUG_COUNT_QUERY, {
+type CountingFilterProps = {
+  query: string;
+  children: React.ReactNode;
+} & FilterProps;
+function CountingFilter({ query, children, ...props }: CountingFilterProps) {
+  const { data, loading, error } = useBugCountQuery({
     variables: { query },
   });
 
   var prefix;
   if (loading) prefix = '...';
-  else if (error) prefix = '???';
+  else if (error || !data?.repository) prefix = '???';
   // TODO: better prefixes & error handling
-  else prefix = data.defaultRepository.bugs.totalCount;
+  else prefix = data.repository.bugs.totalCount;
 
   return (
     <Filter {...props}>
@@ -54,18 +52,26 @@ function CountingFilter({ query, children, ...props }) {
   );
 }
 
-function FilterToolbar({ query, queryLocation }) {
+type Props = {
+  query: string;
+  queryLocation: (query: string) => LocationDescriptor;
+};
+function FilterToolbar({ query, queryLocation }: Props) {
   const classes = useStyles();
-  const params = parse(query);
+  const params: Query = parse(query);
 
-  const hasKey = key => params[key] && params[key].length > 0;
-  const hasValue = (key, value) => hasKey(key) && params[key].includes(value);
-  const loc = params => pipe(params, stringify, queryLocation);
-  const replaceParam = (key, value) => params => ({
+  const hasKey = (key: string): boolean =>
+    params[key] && params[key].length > 0;
+  const hasValue = (key: string, value: string): boolean =>
+    hasKey(key) && params[key].includes(value);
+  const loc = pipe(stringify, queryLocation);
+  const replaceParam = (key: string, value: string) => (
+    params: Query
+  ): Query => ({
     ...params,
     [key]: [value],
   });
-  const clearParam = key => params => ({
+  const clearParam = (key: string) => (params: Query): Query => ({
     ...params,
     [key]: [],
   });
@@ -76,12 +82,11 @@ function FilterToolbar({ query, queryLocation }) {
       <CountingFilter
         active={hasValue('status', 'open')}
         query={pipe(
-          params,
           replaceParam('status', 'open'),
           clearParam('sort'),
           stringify
-        )}
-        to={pipe(params, replaceParam('status', 'open'), loc)}
+        )(params)}
+        to={pipe(replaceParam('status', 'open'), loc)(params)}
         icon={ErrorOutline}
       >
         open
@@ -89,12 +94,11 @@ function FilterToolbar({ query, queryLocation }) {
       <CountingFilter
         active={hasValue('status', 'closed')}
         query={pipe(
-          params,
           replaceParam('status', 'closed'),
           clearParam('sort'),
           stringify
-        )}
-        to={pipe(params, replaceParam('status', 'closed'), loc)}
+        )(params)}
+        to={pipe(replaceParam('status', 'closed'), loc)(params)}
         icon={CheckCircleOutline}
       >
         closed
@@ -104,7 +108,7 @@ function FilterToolbar({ query, queryLocation }) {
       <Filter active={hasKey('author')}>Author</Filter>
       <Filter active={hasKey('label')}>Label</Filter>
       */}
-      <Filter
+      <FilterDropdown
         dropdown={[
           ['id', 'ID'],
           ['creation', 'Newest'],
@@ -112,12 +116,11 @@ function FilterToolbar({ query, queryLocation }) {
           ['edit', 'Recently updated'],
           ['edit-asc', 'Least recently updated'],
         ]}
-        active={hasKey('sort')}
         itemActive={key => hasValue('sort', key)}
-        to={key => pipe(params, replaceParam('sort', key), loc)}
+        to={key => pipe(replaceParam('sort', key), loc)(params)}
       >
         Sort
-      </Filter>
+      </FilterDropdown>
     </Toolbar>
   );
 }
diff --git a/webui/src/list/List.js b/webui/src/list/List.tsx
index 63b73545..cebd13f2 100644
--- a/webui/src/list/List.js
+++ b/webui/src/list/List.tsx
@@ -1,9 +1,12 @@
 import Table from '@material-ui/core/Table/Table';
 import TableBody from '@material-ui/core/TableBody/TableBody';
 import React from 'react';
+
 import BugRow from './BugRow';
+import { BugListFragment } from './ListQuery.generated';
 
-function List({ bugs }) {
+type Props = { bugs: BugListFragment };
+function List({ bugs }: Props) {
   return (
     <Table>
       <TableBody>
diff --git a/webui/src/list/ListQuery.graphql b/webui/src/list/ListQuery.graphql
new file mode 100644
index 00000000..ded60c8a
--- /dev/null
+++ b/webui/src/list/ListQuery.graphql
@@ -0,0 +1,37 @@
+#import "./BugRow.graphql"
+
+query ListBugs(
+  $first: Int
+  $last: Int
+  $after: String
+  $before: String
+  $query: String
+) {
+  repository {
+    bugs: allBugs(
+      first: $first
+      last: $last
+      after: $after
+      before: $before
+      query: $query
+    ) {
+      ...BugList
+      pageInfo {
+        hasNextPage
+        hasPreviousPage
+        startCursor
+        endCursor
+      }
+    }
+  }
+}
+
+fragment BugList on BugConnection {
+  totalCount
+  edges {
+    cursor
+    node {
+      ...BugRow
+    }
+  }
+}
diff --git a/webui/src/list/ListQuery.js b/webui/src/list/ListQuery.tsx
index 8eeec240..84b72431 100644
--- a/webui/src/list/ListQuery.js
+++ b/webui/src/list/ListQuery.tsx
@@ -1,20 +1,21 @@
-import { fade, makeStyles } from '@material-ui/core/styles';
 import IconButton from '@material-ui/core/IconButton';
+import InputBase from '@material-ui/core/InputBase';
+import Paper from '@material-ui/core/Paper';
+import { fade, makeStyles, Theme } from '@material-ui/core/styles';
+import ErrorOutline from '@material-ui/icons/ErrorOutline';
 import KeyboardArrowLeft from '@material-ui/icons/KeyboardArrowLeft';
 import KeyboardArrowRight from '@material-ui/icons/KeyboardArrowRight';
-import ErrorOutline from '@material-ui/icons/ErrorOutline';
-import Paper from '@material-ui/core/Paper';
-import InputBase from '@material-ui/core/InputBase';
 import Skeleton from '@material-ui/lab/Skeleton';
-import gql from 'graphql-tag';
+import { ApolloError } from 'apollo-boost';
 import React, { useState, useEffect, useRef } from 'react';
-import { useQuery } from '@apollo/react-hooks';
 import { useLocation, useHistory, Link } from 'react-router-dom';
-import BugRow from './BugRow';
-import List from './List';
+
 import FilterToolbar from './FilterToolbar';
+import List from './List';
+import { useListBugsQuery } from './ListQuery.generated';
 
-const useStyles = makeStyles(theme => ({
+type StylesProps = { searching?: boolean };
+const useStyles = makeStyles<Theme, StylesProps>(theme => ({
   main: {
     maxWidth: 800,
     margin: 'auto',
@@ -46,7 +47,11 @@ const useStyles = makeStyles(theme => ({
     backgroundColor: fade(theme.palette.primary.main, 0.05),
     padding: theme.spacing(0, 1),
     width: ({ searching }) => (searching ? '20rem' : '15rem'),
-    transition: theme.transitions.create(),
+    transition: theme.transitions.create([
+      'width',
+      'borderColor',
+      'backgroundColor',
+    ]),
   },
   searchFocused: {
     borderColor: fade(theme.palette.primary.main, 0.4),
@@ -91,51 +96,21 @@ const useStyles = makeStyles(theme => ({
   },
 }));
 
-const QUERY = gql`
-  query(
-    $first: Int
-    $last: Int
-    $after: String
-    $before: String
-    $query: String
-  ) {
-    defaultRepository {
-      bugs: allBugs(
-        first: $first
-        last: $last
-        after: $after
-        before: $before
-        query: $query
-      ) {
-        totalCount
-        edges {
-          cursor
-          node {
-            ...BugRow
-          }
-        }
-        pageInfo {
-          hasNextPage
-          hasPreviousPage
-          startCursor
-          endCursor
-        }
-      }
-    }
-  }
-
-  ${BugRow.fragment}
-`;
-
-function editParams(params, callback) {
+function editParams(
+  params: URLSearchParams,
+  callback: (params: URLSearchParams) => void
+) {
   const cloned = new URLSearchParams(params.toString());
   callback(cloned);
   return cloned;
 }
 
 // TODO: factor this out
-const Placeholder = ({ count }) => {
-  const classes = useStyles();
+type PlaceholderProps = { count: number };
+const Placeholder: React.FC<PlaceholderProps> = ({
+  count,
+}: PlaceholderProps) => {
+  const classes = useStyles({});
   return (
     <>
       {new Array(count).fill(null).map((_, i) => (
@@ -158,7 +133,7 @@ const Placeholder = ({ count }) => {
 
 // TODO: factor this out
 const NoBug = () => {
-  const classes = useStyles();
+  const classes = useStyles({});
   return (
     <div className={classes.message}>
       <ErrorOutline fontSize="large" />
@@ -167,8 +142,9 @@ const NoBug = () => {
   );
 };
 
-const Error = ({ error }) => {
-  const classes = useStyles();
+type ErrorProps = { error: ApolloError };
+const Error: React.FC<ErrorProps> = ({ error }: ErrorProps) => {
+  const classes = useStyles({});
   return (
     <div className={[classes.errorBox, classes.message].join(' ')}>
       <ErrorOutline fontSize="large" />
@@ -194,7 +170,7 @@ function ListQuery() {
   const classes = useStyles({ searching: !!input });
 
   // TODO is this the right way to do it?
-  const lastQuery = useRef();
+  const lastQuery = useRef<string | null>(null);
   useEffect(() => {
     if (query !== lastQuery.current) {
       setInput(query);
@@ -202,9 +178,10 @@ function ListQuery() {
     lastQuery.current = query;
   }, [query, input, lastQuery]);
 
+  const num = (param: string | null) => (param ? parseInt(param) : null);
   const page = {
-    first: params.get('first'),
-    last: params.get('last'),
+    first: num(params.get('first')),
+    last: num(params.get('last')),
     after: params.get('after'),
     before: params.get('before'),
   };
@@ -214,9 +191,9 @@ function ListQuery() {
     page.first = 10;
   }
 
-  const perPage = page.first || page.last;
+  const perPage = (page.first || page.last || 10).toString();
 
-  const { loading, error, data } = useQuery(QUERY, {
+  const { loading, error, data } = useListBugsQuery({
     variables: {
       ...page,
       query,
@@ -225,34 +202,34 @@ function ListQuery() {
 
   let nextPage = null;
   let previousPage = null;
-  let hasNextPage = false;
-  let hasPreviousPage = false;
   let count = 0;
-  if (!loading && !error && data.defaultRepository.bugs) {
-    const bugs = data.defaultRepository.bugs;
-    hasNextPage = bugs.pageInfo.hasNextPage;
-    hasPreviousPage = bugs.pageInfo.hasPreviousPage;
+  if (!loading && !error && data?.repository?.bugs) {
+    const bugs = data.repository.bugs;
     count = bugs.totalCount;
     // This computes the URL for the next page
-    nextPage = {
-      ...location,
-      search: editParams(params, p => {
-        p.delete('last');
-        p.delete('before');
-        p.set('first', perPage);
-        p.set('after', bugs.pageInfo.endCursor);
-      }).toString(),
-    };
+    if (bugs.pageInfo.hasNextPage) {
+      nextPage = {
+        ...location,
+        search: editParams(params, p => {
+          p.delete('last');
+          p.delete('before');
+          p.set('first', perPage);
+          p.set('after', bugs.pageInfo.endCursor);
+        }).toString(),
+      };
+    }
     // and this for the previous page
-    previousPage = {
-      ...location,
-      search: editParams(params, p => {
-        p.delete('first');
-        p.delete('after');
-        p.set('last', perPage);
-        p.set('before', bugs.pageInfo.startCursor);
-      }).toString(),
-    };
+    if (bugs.pageInfo.hasPreviousPage) {
+      previousPage = {
+        ...location,
+        search: editParams(params, p => {
+          p.delete('first');
+          p.delete('after');
+          p.set('last', perPage);
+          p.set('before', bugs.pageInfo.startCursor);
+        }).toString(),
+      };
+    }
   }
 
   // Prepare params without paging for editing filters
@@ -263,7 +240,7 @@ function ListQuery() {
     p.delete('after');
   });
   // Returns a new location with the `q` param edited
-  const queryLocation = query => ({
+  const queryLocation = (query: string) => ({
     ...location,
     search: editParams(paramsWithoutPaging, p => p.set('q', query)).toString(),
   });
@@ -273,8 +250,8 @@ function ListQuery() {
     content = <Placeholder count={10} />;
   } else if (error) {
     content = <Error error={error} />;
-  } else {
-    const bugs = data.defaultRepository.bugs;
+  } else if (data?.repository) {
+    const bugs = data.repository.bugs;
 
     if (bugs.totalCount === 0) {
       content = <NoBug />;
@@ -283,7 +260,7 @@ function ListQuery() {
     }
   }
 
-  const formSubmit = e => {
+  const formSubmit = (e: React.FormEvent) => {
     e.preventDefault();
     history.push(queryLocation(input));
   };
@@ -296,7 +273,7 @@ function ListQuery() {
           <InputBase
             placeholder="Filter"
             value={input}
-            onInput={e => setInput(e.target.value)}
+            onInput={(e: any) => setInput(e.target.value)}
             classes={{
               root: classes.search,
               focused: classes.searchFocused,
@@ -310,21 +287,25 @@ function ListQuery() {
       <FilterToolbar query={query} queryLocation={queryLocation} />
       {content}
       <div className={classes.pagination}>
-        <IconButton
-          component={hasPreviousPage ? Link : 'button'}
-          to={previousPage}
-          disabled={!hasPreviousPage}
-        >
-          <KeyboardArrowLeft />
-        </IconButton>
+        {previousPage ? (
+          <IconButton component={Link} to={previousPage}>
+            <KeyboardArrowLeft />
+          </IconButton>
+        ) : (
+          <IconButton disabled>
+            <KeyboardArrowLeft />
+          </IconButton>
+        )}
         <div>{loading ? 'Loading' : `Total: ${count}`}</div>
-        <IconButton
-          component={hasNextPage ? Link : 'button'}
-          to={nextPage}
-          disabled={!hasNextPage}
-        >
-          <KeyboardArrowRight />
-        </IconButton>
+        {nextPage ? (
+          <IconButton component={Link} to={nextPage}>
+            <KeyboardArrowRight />
+          </IconButton>
+        ) : (
+          <IconButton disabled>
+            <KeyboardArrowRight />
+          </IconButton>
+        )}
       </div>
     </Paper>
   );
diff --git a/webui/src/react-app-env.d.ts b/webui/src/react-app-env.d.ts
new file mode 100644
index 00000000..6431bc5f
--- /dev/null
+++ b/webui/src/react-app-env.d.ts
@@ -0,0 +1 @@
+/// <reference types="react-scripts" />
diff --git a/webui/src/tag/ImageTag.js b/webui/src/tag/ImageTag.tsx
index b0f0c1c8..bdb36873 100644
--- a/webui/src/tag/ImageTag.js
+++ b/webui/src/tag/ImageTag.tsx
@@ -1,5 +1,5 @@
-import React from 'react';
 import { makeStyles } from '@material-ui/styles';
+import React from 'react';
 
 const useStyles = makeStyles({
   tag: {
@@ -7,7 +7,10 @@ const useStyles = makeStyles({
   },
 });
 
-const ImageTag = ({ alt, ...props }) => {
+const ImageTag = ({
+  alt,
+  ...props
+}: React.ImgHTMLAttributes<HTMLImageElement>) => {
   const classes = useStyles();
   return (
     <a href={props.src} target="_blank" rel="noopener noreferrer nofollow">
diff --git a/webui/src/tag/PreTag.js b/webui/src/tag/PreTag.tsx
index c2440df9..d3b4c273 100644
--- a/webui/src/tag/PreTag.js
+++ b/webui/src/tag/PreTag.tsx
@@ -1,5 +1,5 @@
-import React from 'react';
 import { makeStyles } from '@material-ui/styles';
+import React from 'react';
 
 const useStyles = makeStyles({
   tag: {
@@ -8,7 +8,7 @@ const useStyles = makeStyles({
   },
 });
 
-const PreTag = props => {
+const PreTag = (props: React.HTMLProps<HTMLPreElement>) => {
   const classes = useStyles();
   return <pre className={classes.tag} {...props}></pre>;
 };