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ehr-out-service

This component is part of the Repository, responsible for creating and handling of EHR transfers out from the Repository, when the Orphaned/Stranded health record stored in the Repository's ehr-repository is requested by the next registering practice.

When the a GP2GP EHR request on its incoming queue, the ehr-out-service accepts this and creates a record to track this outward transfer. After the successful validation of the request and retrieval of patient's health record from ehr-repository, it sends the EHR out to the requesting practice via gp2gp-messenger.

Prerequisites

Follow the links to download

AWS helpers

This repository imports shared AWS helpers from prm-deductions-support-infra. They can be found utils directory after running any task from tasks file.

Directories

Directory Description
/test/docker Contains smoke test for docker
/test/functional Contains tests against deployed service
/gocd Contains the GoCD pipeline files
/src The source code
/terraform Terraform to deploy app as a Fargate task in AWS
/scripts Useful scripts (e.g. for sending canary messages)
/utils Contains aws-helpers

Starting the app locally

BEWARE be sure what you're doing here as node_modules can contain platform-specific files e.g. mac vs linux/amd64 not necessarily compatible

  1. Run npm install to install all node dependencies.
  2. Configure local environment variables:
    • enter dojo
    • run ./tasks _setup_test_integration_local
  3. Run npm run start:local
  4. If successful, you will be able to reach the Swagger docs: http://localhost:3000/swagger/

Note: npm run start:nodemon can be used to build the app before launching the Express server on port 3000 using nodemon - it will watch and reload the server upon any file changes.

Debugging and testing the app docker image

A Docker image can be built locally with:

  1. Run ./tasks build. This runs babel on source (needed?) but also uses npm install to ensure package-lock,json is up-to-date.
  2. Run ./tasks build_docker_local. This builds the docker containers deductions/<component-name>:<commit-no> and deductions/<component-name>:latest with the app in
  3. Run ./tasks test_docker_local to ensure the image has been built correctly
  4. If the above fails, ./tasks run_docker_local to debug production build

Swagger

The swagger documentation for the app can be found at http://localhost:3000/swagger. To update it, change the src/swagger.json file. You can use this editor which will validate your changes.

Tests

Unit tests

Run the unit tests with npm run test:unit (or npm test to run it with lint).

Alternatively, ./tasks test can be used to run the tests with Dojo.

Integration tests

Enter dojo -c Dojofile-itest Run ./tasks test_integration to run with Dojo.

Coverage tests

Runs the coverage tests (unit test and integration test) and collects coverage metrics. Enter dojo -c Dojofile-itest Run ./tasks test_coverage to run within Dojo.

Local Docker tests

Run ./tasks test_docker_local. Make sure you have followed the steps to start the app in production mode beforehand.

Functional tests

Run ./tasks test_functional. This will run the end to end tests within ./test/functional. (Note you may need to be connected to VPN).

Pre-commit Checks

Before committing, ensure you run the following tests:

  1. Unit tests
  2. Integration tests
  3. Coverage tests
  4. Local docker test

Environment variables

Below are the environment variables that are automatically set:

  • NHS_ENVIRONMENT - is set to the current environment in which the container is deployed. It is set in Terraform and populated by the pipeline.gocd.yml for tests.
  • SERVICE_URL - This is prepopulated by tasks and will configure it to service URL according to environment.
  • REPOSITORY_URI - This is prepopulated by tasks (based on IMAGE_REPO_NAME)

Access to AWS

In order to get sufficient access to work with terraform or AWS CLI, please follow the instructions on this confluence pages and this how to?

As a note, this set-up is based on the README of assume-role tool

Assume role with elevated permissions

Install assume-role locally:

brew install remind101/formulae/assume-role

Run the following command with the profile configured in your ~/.aws/config:

assume-role dev [here choose one of the options from your config: ci/dev/test]

Run assume-role with dojo:

Run the following command with the profile configured in your ~/.aws/config:

eval $(dojo "echo <mfa-code> | assume-role dev" or assume-role dev [here choose one of the options from your config: ci/dev/test]

Run the following command to confirm the role was assumed correctly:

aws sts get-caller-identity

Work with terraform as per usual:

terraform init
terraform apply

If your session expires, exit the container to drop the temporary credentials and run dojo again.