Rellit - So Close, Yet So Far

Check it out now!

Rellit allows you to ask questions and reply to questions anonymously. You will see questions closest to you, so only the most relevant ones. Think asking a question is too slow? Head over to the live chat and chat in real time, lightning speed.

Built by: Raymond, Sal, Desmond, Qingyuan - Google SPS Team 52 Summer '22

Setup Node.js in your Local Environment

1. Clone this repository git clone <repo-link>
2. Navigate Inside the Repo with cd rellit
3. Run npm install to install all dependencies specified in package.json
4. To run the server locally, do nodemon index.js
   • nodemon allows saves any updates you make automatically without needing to re-run the server
   • if you are fine with manually re-running the server each time, you can run node index.js
   • Click on "Web Preview" near the top-right corner and "Preview on Port 8080"
5. Ready to deploy? Run gcloud app deploy

• you will get an error if you do not configure your project. Set the project with gcloud config set project summer22-sps-52

Generating New Indices

• new indices may be required to run complex queries, such as the one below:

const queryGetReplies = datastore.createQuery("Reply")
        .filter("questionId", "=", questionId)
        .order("time", {
            descending: true
        });

• If you get a FAILED_PRECONDITION error, copy and paste the suggested index code into index.yaml
• For the above example, the required configuration is:

- kind: Reply
  properties:
    - name: questionId
    - name: time
      direction: desc

• To reflect these changes in Datastore, run the following command, making sure you're in the same directory as index.yaml

gcloud datastore indexes create index.yaml

• Navigate to the Datastore console and wait a few minutes for the index changes to be reflected
• To learn more about how indices work check out the Index Configuration documentation

Creating A Dev Environment

• It's a good idea to create a dev environment to
  1. test the code prior to running gcloud app deploy
  2. Understand why your code is getting 500 errors in production
• Run the following command to initialize a dev environment that listens on port 8080 by default:

gcloud beta code dev

• This article might have useful info on an unable to detect project Id error

Technologies

• Node.js and Express.js backend
• Google Datastore - NoSQL database to store questions and replies
• ejs template engine
• Bootstrap
• Google Maps API
• Firestore backend for live chat feature

Known Issues

• When in development, each time you refresh the server (including auto-refresh by nodemon), the session will terminate
  • a new session must be started again by signing into Google