feat: Supabase OAuth (#288)

Author: siddharth-bhansali

oauth/src/connections/supabase/init.ts

@@ -0,0 +1,49 @@
+import axios from 'axios';
+import qs from 'qs';
+import { DataObject, OAuthResponse } from '../../lib/types';
+
+export const init = async ({ body }: DataObject): Promise<OAuthResponse> => {
+    try {
+        const {
+            clientId: client_id,
+            clientSecret: client_secret,
+            metadata: { code, redirectUri: redirect_uri },
+        } = body;
+
+        const requestBody = {
+            grant_type: 'authorization_code',
+            code,
+            client_id,
+            client_secret,
+            redirect_uri,
+        };
+
+        const response = await axios({
+            url: 'https://api.supabase.com/v1/oauth/token',
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/x-www-form-urlencoded',
+            },
+            data: qs.stringify(requestBody),
+        });
+
+        const {
+            data: {
+                access_token: accessToken,
+                refresh_token: refreshToken,
+                token_type: tokenType,
+                expires_in: expiresIn,
+            },
+        } = response;
+
+        return {
+            accessToken,
+            refreshToken,
+            expiresIn,
+            tokenType,
+            meta: {},
+        };
+    } catch (error) {
+        throw new Error(`Error fetching access token for Supabase: ${error}`);
+    }
+};

oauth/src/connections/supabase/refresh.ts

@@ -0,0 +1,48 @@
+import axios from 'axios';
+import qs from 'qs';
+import { DataObject, OAuthResponse } from '../../lib/types';
+
+export const refresh = async ({ body }: DataObject): Promise<OAuthResponse> => {
+    try {
+        const {
+            OAUTH_CLIENT_ID: client_id,
+            OAUTH_CLIENT_SECRET: client_secret,
+            OAUTH_REFRESH_TOKEN: refresh_token,
+            OAUTH_REQUEST_PAYLOAD: { redirectUri: redirect_uri, tokenType },
+            OAUTH_METADATA: { meta },
+        } = body;
+
+        const requestBody = {
+            grant_type: 'refresh_token',
+            client_id,
+            refresh_token,
+            client_secret,
+            redirect_uri,
+        };
+
+        const response = await axios({
+            url: 'https://api.supabase.com/v1/oauth/token',
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/x-www-form-urlencoded',
+            },
+            data: qs.stringify(requestBody),
+        });
+
+        const {
+            access_token: accessToken,
+            refresh_token: refreshToken,
+            expires_in: expiresIn,
+        } = response.data;
+
+        return {
+            accessToken,
+            refreshToken,
+            expiresIn,
+            tokenType,
+            meta,
+        };
+    } catch (error) {
+        throw new Error(`Error fetching access token for Supabase: ${error}`);
+    }
+};