Added useLogin hook and API endpoint

lib/bigcommerce/api/customers/handlers/create-customer.ts

@@ -57,6 +57,7 @@ const createCustomer: CustomersHandlers['createCustomer'] = async ({
 
   console.log('DATA', result.data)
 
+  // TODO: Currently not working, fix this asap.
   const loginData = await login({ variables: { email, password }, config })
 
   console.log('LOGIN DATA', loginData)

lib/bigcommerce/api/customers/handlers/login.ts

@@ -0,0 +1,26 @@
+import login from '../../operations/login'
+import type { LoginHandlers } from '../login'
+
+const loginHandler: LoginHandlers['login'] = async ({
+  res,
+  body: { email, password },
+  config,
+}) => {
+  // TODO: Add proper validations with something like Ajv
+  if (!(email && password)) {
+    return res.status(400).json({
+      data: null,
+      errors: [{ message: 'Invalid request' }],
+    })
+  }
+  // TODO: validate the password and email
+  // Passwords must be at least 7 characters and contain both alphabetic
+  // and numeric characters.
+
+  // TODO: Currently not working, fix this asap.
+  const loginData = await login({ variables: { email, password }, config })
+
+  res.status(200).json({ data: null })
+}
+
+export default loginHandler

lib/bigcommerce/api/customers/login.ts

@@ -0,0 +1,45 @@
+import createApiHandler, {
+  BigcommerceApiHandler,
+  BigcommerceHandler,
+} from '../utils/create-api-handler'
+import isAllowedMethod from '../utils/is-allowed-method'
+import { BigcommerceApiError } from '../utils/errors'
+import login from './handlers/login'
+
+export type LoginBody = {
+  email: string
+  password: string
+}
+
+export type LoginHandlers = {
+  login: BigcommerceHandler<null, Partial<LoginBody>>
+}
+
+const METHODS = ['POST']
+
+const loginApi: BigcommerceApiHandler<null, LoginHandlers> = async (
+  req,
+  res,
+  config,
+  handlers
+) => {
+  if (!isAllowedMethod(req, res, METHODS)) return
+
+  try {
+    const body = req.body ?? {}
+    return await handlers['login']({ req, res, config, body })
+  } catch (error) {
+    console.error(error)
+
+    const message =
+      error instanceof BigcommerceApiError
+        ? 'An unexpected error ocurred with the Bigcommerce API'
+        : 'An unexpected error ocurred'
+
+    res.status(500).json({ data: null, errors: [{ message }] })
+  }
+}
+
+const handlers = { login }
+
+export default createApiHandler(loginApi, handlers, {})

lib/bigcommerce/api/utils/create-api-handler.ts

@@ -3,7 +3,7 @@ import { BigcommerceConfig, getConfig } from '..'
 
 export type BigcommerceApiHandler<
   T = any,
-  H extends BigcommerceHandlers = {},
+  H extends BigcommerceHandlers<T> = {},
   Options extends {} = {}
 > = (
   req: NextApiRequest,

lib/bigcommerce/use-login.tsx

@@ -0,0 +1,49 @@
+import { useCallback } from 'react'
+import { HookFetcher } from '@lib/commerce/utils/types'
+import useCommerceLogin from '@lib/commerce/use-login'
+import type { LoginBody } from './api/customers/login'
+
+const defaultOpts = {
+  url: '/api/bigcommerce/customers/login',
+  method: 'POST',
+}
+
+export type LoginInput = LoginBody
+
+export const fetcher: HookFetcher<null, LoginBody> = (
+  options,
+  { email, password },
+  fetch
+) => {
+  if (!(email && password)) {
+    throw new Error(
+      'A first name, last name, email and password are required to login'
+    )
+  }
+
+  return fetch({
+    url: options?.url ?? defaultOpts.url,
+    method: options?.method ?? defaultOpts.method,
+    body: { email, password },
+  })
+}
+
+export function extendHook(customFetcher: typeof fetcher) {
+  const useLogin = () => {
+    const fn = useCommerceLogin<null, LoginInput>(defaultOpts, customFetcher)
+
+    return useCallback(
+      async function login(input: LoginInput) {
+        const data = await fn(input)
+        return data
+      },
+      [fn]
+    )
+  }
+
+  useLogin.extend = extendHook
+
+  return useLogin
+}
+
+export default extendHook(fetcher)

lib/bigcommerce/use-signup.tsx

@@ -10,7 +10,7 @@ const defaultOpts = {
 
 export type SignupInput = CreateCustomerBody
 
-export const fetcher: HookFetcher<undefined, CreateCustomerBody> = (
+export const fetcher: HookFetcher<null, CreateCustomerBody> = (
   options,
   { firstName, lastName, email, password },
   fetch
@@ -30,10 +30,7 @@ export const fetcher: HookFetcher<undefined, CreateCustomerBody> = (
 
 export function extendHook(customFetcher: typeof fetcher) {
   const useSignup = () => {
-    const fn = useCommerceSignup<undefined, SignupInput>(
-      defaultOpts,
-      customFetcher
-    )
+    const fn = useCommerceSignup<null, SignupInput>(defaultOpts, customFetcher)
 
     return useCallback(
       async function signup(input: SignupInput) {

lib/commerce/use-login.tsx

@@ -0,0 +1,5 @@
+import useAction from './utils/use-action'
+
+const useLogin = useAction
+
+export default useLogin

pages/api/bigcommerce/customers/login.ts

@@ -0,0 +1,3 @@
+import loginApi from '@lib/bigcommerce/api/customers/login'
+
+export default loginApi()