PortalJS

PortalEvents.register(event => {
  // Here is where we start a new portal
  event.create()
    // (required) Set the frame block for the portal
    .frameBlock("minecraft:dirt")

    // Set the dimension to travel to when the portal is used
    .setDestination("minecraft:the_nether")

    // Now you can do one of the following (default flint and steel):
    // This lights the portal with a grass block
    .lightWithItem("minecraft:grass_block")

    // Lights the portal with water
    .lightWithWater()

    // Light the portal with a fluid
    .lightWithFluid("minecraft:lava")

    // (Optional) Custom ignition source by the namespace and path (as in mod_id:some_source)
    .customIgnitionSource("mod:source")

    // (optional) Set a forced size for the portal (width, height)
    .forcedSize(4, 5)

    // (Optional) Configure the portal's return dimension. `onlyIgniteInReturnDimension` specifies if the portal can only be ignited in the return dimension
    .returnDim("minecraft:the_end", true)

    // Or, you can just do .returnDim("minecraft:the_end") (false is the default)

    // (Optional) Restrict portal ignition to the Overworld. Use this if you want the portal to be ignitable only in the Overworld
    .onlyLightInOverworld()

    // (Optional) Use the flat portal style, similar to the End Portal
    .flatPortal()

    // (Optional) Set the RGB color for the portal's tint
    .tint(r, g, b) // (red, green, blue)
    // .tint(0x) // You can do your 0x[hex color code] here as well

    // .tintColor(r, g, b) // does the game thing as tint

    // (Optional) Event handling before/after the entity gets teleported
    .beforeTeleportation(entity => {
      // Example logic: cancel for non-player entities
      return entity instanceof Player ? ShouldTP.CONTINUE : ShouldTP.CANCEL;
    })
    .afterTeleportation(entity => {
       // Example logic for after teleportation
       console.log("Teleported: " + entity.getName().getString())
    })

    // (optional) Create a sound from sound event data to play to the player before/after teleportation
    // Example: play the ALLAY_THROW sound at pitch 1 and volume 1
    .inPortalAmbienceSound(SoundEvents.ALLAY_THROW, 1, 1)

    // Example: play the ALLAY_DEATG sound at pitch 1 and volume 1
    .afterTeleportationAmbienceSound(SoundEvents.ALLAY_DEATH, 1, 1)
})