Unuseful /!
Just a warm up in bash, js (express, react) that correspond to a project that check an exchange pair price (Coinbase currently) from a bash script (bash language was mandated in the project spec but in a normal time it should not be used. The js backend should directly request Coinbase).
So once the bash script get the value, it is stored into a sqlite3 database. Then the backend can query this database and return the requested values.
The react front just call the backend when it should.