Added framework folder

framework/bigcommerce/api/customers/handlers/signup.ts

@@ -0,0 +1,62 @@
+import { BigcommerceApiError } from '../../utils/errors'
+import login from '../../operations/login'
+import { SignupHandlers } from '../signup'
+
+const signup: SignupHandlers['signup'] = async ({
+  res,
+  body: { firstName, lastName, email, password },
+  config,
+}) => {
+  // TODO: Add proper validations with something like Ajv
+  if (!(firstName && lastName && 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.
+
+  try {
+    await config.storeApiFetch('/v3/customers', {
+      method: 'POST',
+      body: JSON.stringify([
+        {
+          first_name: firstName,
+          last_name: lastName,
+          email,
+          authentication: {
+            new_password: password,
+          },
+        },
+      ]),
+    })
+  } catch (error) {
+    if (error instanceof BigcommerceApiError && error.status === 422) {
+      const hasEmailError = '0.email' in error.data?.errors
+
+      // If there's an error with the email, it most likely means it's duplicated
+      if (hasEmailError) {
+        return res.status(400).json({
+          data: null,
+          errors: [
+            {
+              message: 'The email is already in use',
+              code: 'duplicated_email',
+            },
+          ],
+        })
+      }
+    }
+
+    throw error
+  }
+
+  // Login the customer right after creating it
+  await login({ variables: { email, password }, res, config })
+
+  res.status(200).json({ data: null })
+}
+
+export default signup