Create JWT read/write service in shared project

[jalbinson]

User Story

I want to pass along JWT data in a custom header from a microservice to any other microservice and use the same code to read/write it.

Description/Use Case

I want to pass application group data from the auth microservice to both submissions and report stream services. I don't want to have to re-write any of the read/write code.

Risks/Impacts/Considerations

Updates to the shared project can affect all underlying services. Tread carefully.

Dev Notes

• Create new public/private keypair using RS256 algorithm
  • instructions
  • Save the Base64 encoded private key up in azure
• Make a new JWT service that can read and write generic data classes from JWTs
• Make a new data class that will be the structure for our application groups JWT
  • Include the common JWT claims (sub, expiration, etc)
  • Include a custom claim for groups as an array of strings
• The read/write functions should accept the private or public key as a parameter to each service will pass in what it needs

Acceptance Criteria

• New service lives in shared project
• Can read/write JWTs given keys
• can serialize/deserialize to data classes
• unit tests