How do you use w3up on the server/in CI where there's no persistent filesystem?

w3-up-server.md

On your local computer:

1. Create a keypair for the server

   npx ucan-key ed --json

   Note down did and key values!

2. Install the w3cli:

   npm i -g @web3-storage/w3cli

3. Authorize your agent to use spaces owned by your email address:

   w3 authorize you@email.com

4. Create a space for where the uploads will be registered:

   w3 space create myspacename
   w3 space register

5. Delegate from your local machine to the server:

   w3 delegation create <did_from_ucan-key_command_above> --can 'store/add' --can 'upload/add' | base64

On the server:

1. Set up environment variables KEY with the output of key from step 1 and PROOF with the output of step 4.

2. In the script, load the agent with the server private key and add the proof of delegation:

   import * as Client from '@web3-storage/w3up-client'
   import { StoreMemory } from '@web3-storage/w3up-client/stores/memory'
   import * as Proof from '@web3-storage/w3up-client/proof'
   import { Signer } from '@web3-storage/w3up-client/principal/ed25519'
   
   async function main () {
     // Load client with specific private key
     const principal = Signer.parse(process.env.KEY)
     const store = new StoreMemory()
     const client = await Client.create({ principal, store })
     // Add proof that this agent has been delegated capabilities on the space
     const proof = await Proof.parse(process.env.PROOF)
     const space = await client.addSpace(proof)
     await client.setCurrentSpace(space.did())
     // READY to go!
   }

Yes the CLI automatically “uses” the created space for you so it’s not necessary to w3 space use did…