Wisp Example: Working with cookies#

gleam run   # Run the server
gleam test  # Run the tests

This example shows how to read and write cookies, and how to sign cookies so they cannot be tampered with.

This example is based off of the "working with form data" example so read that one first. The additions are detailed here and commented in the code.

Signing of cookies uses the secret_key_base value. If this value changes then the application will not be able to verify previously signed cookies, and if someone gains access to the secret key they will be able to forge cookies. This example application generates a random string in app.gleam, but in a real application you will need to read this secret value from somewhere secure.

app/router module#

The handle_request function has been updated to read and write cookies.

app_test module#

Tests have been added to test that cookies are handled correctly, and to create signed cookies for test requests.

Other files#

No changes have been made to the other files.