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shlink-web-client/docs/adr/2021-10-31-how-to-handle-setting-auto-connect-on-servers.md
Alejandro Celaya 8bfa14386b Added first Architecture Decision Records
2021-11-20 10:06:43 +01:00

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How to handle setting auto-connect on servers

  • Status: Accepted
  • Date: 2021-10-31

Context and problem statement

A new feature has been requested, to allow auto-connecting to servers. The request specifically mentioned doing it automatically when there's only one server configured, but it can be extended a bit to allow setting an "auto-connect" server, regardless the number of configured servers.

At all times, no more than one server can be set to "auto-connect" simultaneously. Setting a new one will effectively unset the previous one, if any.

Considered option

  • Auto-connect only of there's a single server configured.
  • Allow to set the server as "auto-connect" during server creation, edition or import.
  • Allow to set the server as "auto-connect" on a separated flow, where the full list of servers can be handled.

Decision outcome

In order to make it more flexible, any server will be allowed to be set as "auto-connect", regardless the amount of configured servers.

Auto-connect will be handled from the new "Manage servers" section.

Pros and Cons of the Options

Only one server

  • Good:
    • Does not require extending models, and the logic to auto-connect is based on the amount of configured servers.
  • Bad:
    • It's not flexible enough.
    • Makes the app behave differently depending on the amount of configured servers, making it confusing.

Auto-connect configured on existing creation/edition/import

  • Good:
    • Does not require creating a new section to handle "auto-connect".
  • Bad:
    • Requires extending the server model with a new prop.
    • It's much harder to ensure data consistency, as we need to ensure only one server is set to "auto-connect".
    • On import, many servers might have been set to "auto-connect". The expected behavior there can be unclear.

Auto-connect configured on new section

  • Good:
    • It's much easier to ensure data consistency.
    • It's much more clear and predictable, as the UI shows which is the server configured as auto-connect.
    • We have controls in a single place to set/unset auto connect on servers, allowing only the proper option based on current state for every server.
  • Bad:
    • Requires extending the server model with a new prop.
      • Requires creating a new section to handle "auto-connect".