feat(integration): ✨ Add Google Sheets integration

apps/builder/pages/api/credentials/google-sheets/callback.ts

@@ -0,0 +1,62 @@
+import { oauth2Client } from 'libs/google-sheets'
+import { NextApiRequest, NextApiResponse } from 'next'
+import { getSession } from 'next-auth/react'
+import { CredentialsType, Prisma, User } from 'db'
+import prisma from 'libs/prisma'
+import { googleSheetsScopes } from './consent-url'
+import { stringify } from 'querystring'
+
+const handler = async (req: NextApiRequest, res: NextApiResponse) => {
+  const session = await getSession({ req })
+  const { redirectUrl, stepId } = JSON.parse(
+    Buffer.from(req.query.state.toString(), 'base64').toString()
+  )
+  if (req.method === 'GET') {
+    const code = req.query.code.toString()
+    if (!code)
+      return res.status(400).send({ message: "Bad request, couldn't get code" })
+    if (!session?.user)
+      return res.status(401).json({ message: 'Not authenticated' })
+    const user = session.user as User
+    const { tokens } = await oauth2Client.getToken(code)
+    if (!tokens?.access_token) {
+      console.error('Error getting oAuth tokens:')
+      throw new Error('ERROR')
+    }
+    oauth2Client.setCredentials(tokens)
+    const { email, scopes } = await oauth2Client.getTokenInfo(
+      tokens.access_token
+    )
+    if (!email)
+      return res
+        .status(400)
+        .send({ message: "Couldn't get email from getTokenInfo" })
+    if (googleSheetsScopes.some((scope) => !scopes.includes(scope)))
+      return res
+        .status(400)
+        .send({ message: "User didn't accepted required scopes" })
+    const credentials = {
+      name: email,
+      type: CredentialsType.GOOGLE_SHEETS,
+      ownerId: user.id,
+      data: tokens as Prisma.InputJsonValue,
+    }
+    const { id: credentialsId } = await prisma.credentials.upsert({
+      create: credentials,
+      update: credentials,
+      where: {
+        name_type_ownerId: {
+          name: credentials.name,
+          type: credentials.type,
+          ownerId: user.id,
+        },
+      },
+    })
+    const queryParams = stringify({ stepId, credentialsId })
+    return res.redirect(
+      `${redirectUrl}?${queryParams}` ?? `${process.env.NEXTAUTH_URL}`
+    )
+  }
+}
+
+export default handler

apps/builder/pages/api/credentials/google-sheets/consent-url.ts

@@ -0,0 +1,22 @@
+import { oauth2Client } from 'libs/google-sheets'
+import { NextApiRequest, NextApiResponse } from 'next'
+
+export const googleSheetsScopes = [
+  'https://www.googleapis.com/auth/userinfo.email',
+  'https://www.googleapis.com/auth/spreadsheets',
+  'https://www.googleapis.com/auth/drive.readonly',
+]
+
+const handler = (req: NextApiRequest, res: NextApiResponse) => {
+  if (req.method === 'GET') {
+    const url = oauth2Client.generateAuthUrl({
+      access_type: 'offline',
+      scope: googleSheetsScopes,
+      prompt: 'consent',
+      state: Buffer.from(JSON.stringify(req.query)).toString('base64'),
+    })
+    return res.status(301).redirect(url)
+  }
+}
+
+export default handler