(DOCSP-39165) Node and RN: Change baseURL during runtime

[krollins-mdb]

Pull Request Info

Jira ticket: https://jira.mongodb.org/browse/DOCSP-39165

• Connect to an Atlas App Services Backend

Reminder Checklist

Before merging your PR, make sure to check a few things.

• [ ] Did you tag pages appropriately?
  • genre
  • meta.keywords
  • meta.description
• [ ] Describe your PR's changes in the Release Notes section
• [ ] Create a Jira ticket for related docs-app-services work, if any

Release Notes

Review Guidelines

REVIEWING.md

[github-actions[bot]]

Readability for Commit Hash: a4bb7e36939576d6384828d078d9d1214e95be27

You can see any previous Readability scores (if they exist) by looking at the comment's history.

Readability scores for changed documents:

• source/sdk/react-native/app-services/connect-to-app-services-app: Grade Level: 7.5, Reading Ease: 60.61
• source/sdk/node/app-services/connect-to-app-services-backend: Grade Level: 8.1, Reading Ease: 58.89

For Grade Level, aim for 8 or below.

For Reading Ease scores, aim for 60 or above:

Score	Difficulty
90-100	Very Easy
80-89	Easy
70-79	Fairly Easy
60-69	Medium
50-59	Fairly Hard
30-49	Hard
0-29	Very Hard

For help improving readability, try Hemingway App.

[docs-builder-bot]

✨ Staging URL: https://preview-mongodbmongodb.gatsbyjs.io/realm/master/

🪵 Logs

• job log: 085c08e0c73b1c765ac6244348ea6d52c36e205c