To start the backend:

./backend-start.sh

The project contains two types of tests unit and resource-heavy tests. The latter is limited to max 2 parallel executions so that they are not exhausting available resources and as a result fail with a timeout. As a result one needs to specify that additional group needs to be called:

sbt ';test ;ItTest / test'

Note that ItTest can be restricted (or run in parallel) by Scala or JSON implementations e.g.

SCALA=Scala2 JSON="Circe,No" sbt 'ItTest / test'

results in running integration tests only for Scala 2 configurations that JSON is either disabled (No) or using Circe implementation.

In order to locally run and build frontend webapp you need to have the following tools:

• Node.js download - any version above 16.0.0 will do just fine, usage of LTS are recommended

• make sure to install version 1.x (currently 1.22) as Yarn 2 enhances different philosophy and is not backwards compatible,
• it's recommeneded to install yarn with native node package manager npm:

npm install --global yarn

• or via the shell script:

curl -o- -L https://yarnpkg.com/install.sh | bash

To start the frontend:

./frontend-start.sh

Please notice, that by default fronted points to the production backend. This could be changed by specifying the REACT_APP_SERVER_ADDRESS environmental variable. To start the frontend pointing to http://localhost:9090 run:

export REACT_APP_SERVER_ADDRESS="http://localhost:9090"; ./frontend-start.sh

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