Me Maintenance

• Get personalized recommended preventative care and preventative screenings based on FHIR patient data.
• Create, update, and delete reminders for those items.
• Get notified via SMS notification when the reminder is due.
• Recurring reminders get automatically rescheduled based on the clinically recommended frequency.

Application Screens

Application Architecture

Components

• API layer (under /backend) - Go
• Reminder Lambda (under /backend) - Go
• Mobile App/ Front End (under /lib) - Dart + Flutter
• AWS terraform components (under /infra) - Terraform
• DB Schema (under /infra)

Accessing the Deployed Application

1. Clone the project
2. Follow the guidelines at the bottom of this README to run all the terraform infra in AWS that is needed.
3. build, and run
   • either in IOS or Android simulator
   • Create APK and launch to an Android device

Sample Users:

Note The users are only created after setting up the DB and running the provided sql scripts.

• user 1: (fhir_patient_id: 1653603)
  • username: daniel_moya
  • password: pizza
• user 2: (fhir_patient_id: 1836961)
  • username: alex_musterfrau
  • password: pizza
• user 3: (fhir_patient_id: 1161192)
  • username: maxima831_wilderman619
  • password: pizza

These are patients that exist in the https://hapi.fhir.org FHIR server. They have worked consistently for me over the last few weeks. I have noticed before that the FHIR Server has gone down for maintenance before. I hope that will not happen when you try to use the app.

I have also seen a previous test patient I was using get deleted from the server before. If you have trouble logging in, Verify that the patient exists in the FHIR server by making a GET Request for the patient using the patient ID I noted above. If that is the case, Please try to create a new patient using one of the above matched patient IDs that I have listed for the sample logins.

Creating A New User

You can create your own user if you want. Additionally to test the SMS reminder feature yourself and get SMS notifications you will need to do this so you can add your phone number.

Use the below request to create a user. Copy and paste in your terminal and execute.

curl --header "Content-Type: application/json" \
  -v --request POST \
  --data '{"username":"wxyz","password":"xyz", "phone_number":"+xxxxxxxxxxx", "fhir_server_address":"https://hapi.fhir.org/baseR4", "patient_id":"1234"  }' \
  http://<api-url>/api/user

• The phone number must be in E.164 format.
• All fields are required.
• The patient ID must match to an existing patient in the FHIR server address.
• The username must be unique.
• Everything is a string type.

A successful request will show something similar to the below response.

> POST /api/user HTTP/1.1
> Host: <api-url>
> User-Agent: curl/7.71.1
> Accept: */*
> Content-Type: application/json
> Content-Length: 144
> 
* upload completely sent off: 144 out of 144 bytes
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Server: Cowboy
< Connection: keep-alive
< Date: Sun, 12 Dec 2021 00:52:25 GMT
< Content-Length: 140
< Content-Type: text/plain; charset=utf-8
< Via: 1.1 vegur
< 
{"username":"wxyz","password":"xyz","phone_number":"+xxxxxxxxxxx","fhir_server_address":"https://hapi.fhir.org/baseR4","patient_id":"1234"}

A successful response still does not mean it will be a valid user. You will have to have followed the format that I've shown above exactly, With a corrected formal phone number and existing FHIR patient.

Once logged in

Creating Reminders

• Select one of the preventative care items from the presented list by clicking on the plus (+) button.
• Select the Reminders tab
• Click the "select date"

Updating Reminders

• Select a reminder
• navigate to the Reminders tab
• select the "Change Date"

Deleting Reminders

• Select a reminder
• navigate to the Reminders tab
• select the delete reminder button

Deploying the application

NOTE The project WAS deployed on heroku previously because of some previous requirements. I am currently migrating this to AWS.

Old steps for heroku deployment.

1. Clone the git repo

2. Run the terraform scripts under the me_maintanence/infra directory. This will require an AWS account. Configure the terraform scripts to use your AWS credentials.

• First run the remote-state Configuration with a new bucket.
• Then run the rds Configuration
  • Connect to the RDS database and run the SQL Scripts from here me_maintanence/infra/rds/tables/. Make sure to run them in the order that they are numbered.
• Then run the reminder Configuration

3. Create yourself 2 new Heroku Projects that use container run times.

4. Update the me_maintanence/push.sh file With one of the Heroku Project that u created names in the CLI commands (replacing the ones for my project.) - Then run the script. This is for the web App deployment.

5. update me_maintanence/backend/push-api.sh file With the other Heroku Project name in the CLI commands (replacing the ones for my project.) This will be for the API. - Then run the script. Add environment variables DB_HOST (rds database hostname) and DB_PW (database password).

6. Update me_maintanence/lib/config/app_config.dart. Replace the API URL From mine to yours that you created in step 5.

7. Update me_maintanence/backend/push-reminder.sh With the S3 bucket that you use specified in the terraform. - Then run the script.

8. Launch the app at the heroku project name that you created and specified in step 4.