Divvi Up API Server and web app

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API Specification:

• production ui
• staging ui
• main (yml)

Configuring and running

System requirements

• NodeJS and npm
• Rust (current stable or nightly)
• PostgreSQL
• Docker
  • On MacOS, ensure your docker VM has sufficient resources, at least 2vCPUs and 8GB of RAM.
• docker-compose >=v2.27.0
  • On MacOS, install this through brew. Notice this calls for extra modifications to ~/.docker/config.json.
  • On Linux, install docker-compose-plugin from the docker-ce repository. See the OS-specific instructions here.
  • Alternatively, for both platforms, you can install the binary plugin.

Some Rust dependencies require additional system dependencies. These can be installed with your usual package manager:

• C compiler (GCC or Clang)
• CMake

Local Development

This will get you up and running quickly for development purposes.

1. Clone the repository and navigate to its root.
2. Execute echo "http://localhost:8080" >app/public/api_url
3. Execute docker compose up.
4. Navigate in your browser to http://localhost:8081/.

Data is persisted until you docker compose rm --volumes.

If you want to use image versions besides the defaults, you can use environment variables JANUS_AGGREGATOR_IMAGE, JANUS_MIGRATOR_IMAGE, DIVVIUP_API_IMAGE and DIVVIUP_API_MIGRATOR_IMAGE when invoking docker compose. For example:

DIVVIUP_API_IMAGE=divviup_api:localversion \
  JANUS_IMAGE=us-west2-docker.pkg.dev/divviup-artifacts-public/janus/janus_aggregator:0.7.18 \
  docker compose up

divviup_api:localversion will be pulled from the local Docker repository and us-west2-docker.pkg.dev/divviup-artifacts-public/janus/janus_aggregator:0.7.18 will be pulled from us-west2-docker.pkg.dev.

We also provide compose.dev.yaml, which will build divviup-api from local sources. Try:

docker compose -f compose.dev.yaml watch

docker compose will automatically reload containers when you make changes. The JANUS_IMAGE and JANUS_MIGRATOR_IMAGE variables are honored by compose.dev.yaml.

An account named demo is also automatically created. Two Janus aggregators will be created for you, and are automatically paired to divviup-api. Their information is:

Name	Aggregator API address	Aggregator API auth token	Paired with	DAP API outside compose network
leader	http://janus_1_aggregator:8080/aggregator-api	0000	Shared, first party	localhost:9001
helper	http://janus_2_aggregator:8080/aggregator-api	0000	demo account	localhost:9002

If using the divviup CLI, consider compiling with the --features admin option. Also, set these environment variables.

# This token is intentionally blank, but you'll still need to set the variable.
export DIVVIUP_TOKEN=
export DIVVIUP_API_URL=http://localhost:8080

# Set this for any account-specific commands. Since divviup-api in dev mode will automatically
# authenticate you as an admin, it won't know which account to target.
export DIVVIUP_ACCOUNT_ID={account uuid}

PostgreSQL is exposed on port 5432 with username and password postgres.

If you need to iterate on database migrations, you may wish to disable the divviup_api_migrate service by commenting it out in compose.yaml.

Security Notes

• We do not have CSRF protections because we only accept a custom content type for non-idempotent request methods such as POST, and have constrained CORS rules.