Added signup API endpoint

server/presenters/__snapshots__/user.test.js.snap

@@ -6,3 +6,12 @@ Object {
   "username": "testuser"
 }
 `;
+
+exports[`test presents a user without slack data 1`] = `
+Object {
+  "avatarUrl": null,
+  "id": "123",
+  "name": "Test User",
+  "username": "testuser"
+}
+`;

server/presenters/user.js

@@ -4,9 +4,9 @@ const presentUser = (ctx, user) => {
   return new Promise(async (resolve, _reject) => {
     const data = {
       id: user.id,
-      name: user.name,
       username: user.username,
-      avatarUrl: user.slackData.image_192,
+      name: user.name,
+      avatarUrl: user.slackData ? user.slackData.image_192 : null,
     };
     resolve(data);
   });

server/presenters/user.test.js

@@ -17,3 +17,17 @@ it('presents a user', async () => {
 
   expect(user).toMatchSnapshot();
 });
+
+it('presents a user without slack data', async () => {
+  const user = await presentUser(
+    ctx,
+    {
+      id: '123',
+      name: 'Test User',
+      username: 'testuser',
+      slackData: null,
+    },
+  );
+
+  expect(user).toMatchSnapshot();
+});