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frontend/src/utils/jwt.ts

@@ -0,0 +1,45 @@
+import { namespace } from '../config'
+
+export type JWT = {
+  id: string
+  token: string
+  exp: number
+}
+
+const getJWT = (): null | JWT => {
+  const id = window.localStorage.getItem(`${namespace}-id`)
+  const token = window.localStorage.getItem(`${namespace}-token`)
+  const exp = parseInt(window.localStorage.getItem(`${namespace}-exp`) || '')
+
+  if (!id || !token || exp < +new Date()) {
+    wipeJWT()
+    return null
+  }
+
+  return {
+    id,
+    token,
+    exp,
+  }
+}
+
+const setJWT = (token: JWT): void => {
+  window.localStorage.setItem(`${namespace}-id`, token.id)
+  window.localStorage.setItem(`${namespace}-token`, token.token)
+  window.localStorage.setItem(`${namespace}-exp`, token.exp + '')
+}
+
+const wipeJWT = (): void => {
+  window.localStorage.removeItem(`${namespace}-id`)
+  window.localStorage.removeItem(`${namespace}-token`)
+  window.localStorage.removeItem(`${namespace}-exp`)
+}
+
+const setHeaders = () => {
+  const token = window.localStorage.getItem(`${namespace}-token`)
+  if (!token) throw new Error('Token gone!')
+
+  return { headers: { Authorization: token } }
+}
+
+export { getJWT, setJWT, wipeJWT, setHeaders }