initial provider

framework/medusa/auth/use-login.tsx

@@ -0,0 +1,49 @@
+import { MutationHook } from '@commerce/utils/types'
+import useLogin, { UseLogin } from '@commerce/auth/use-login'
+import { CommerceError, ValidationError } from '@commerce/utils/errors'
+import { useCustomer } from '../customer'
+import { useCallback } from 'react'
+
+export default useLogin as UseLogin<typeof handler>
+
+export const handler: MutationHook<any> = {
+  fetchOptions: {
+    query: 'auth',
+    method: 'authenticate',
+  },
+  async fetcher({ input: { email, password }, options, fetch }) {
+    if (!(email && password)) {
+      throw new CommerceError({
+        message: 'An email and password are required to login',
+      })
+    }
+
+    await fetch({
+      ...options,
+      variables: { email: email, password: password },
+    }).catch((_e) => {
+      throw new CommerceError({
+        errors: [
+          new ValidationError({
+            message:
+              'A user with that email and password combination does not exist',
+          }),
+        ],
+      })
+    })
+  },
+  useHook:
+    ({ fetch }) =>
+    () => {
+      const { revalidate } = useCustomer()
+
+      return useCallback(
+        async function login(input) {
+          const data = await fetch({ input })
+          await revalidate()
+          return data
+        },
+        [fetch, revalidate]
+      )
+    },
+}