Example codes do not work

[HoseinHaqiqian]

• Version: 0.45.6
• Platform: Mac os M1
• Node version: v19.6.0
• Npm version: 9.4.0

Severity: High

Description:

• What you did :

• i executed one of the example codes with node 1.js command

• What happened :

it failed with following error : Cannot find module ..../llibp2p/dist/src/index.js improted from ..../js-libp2p/examples/peer-and-content-routing/1.js

• What you expected to happen :

run successfully

[HoseinHaqiqian]

After creating project with latest version of libp2p, it gives me following error :
Command : ts-node --esm index.ts

Error : No "exports" main defined in project_path/node_modules/libp2p/package.json

[greenSnot]

dht from the example should be moved to peerRouters: [kadDHT()]?

const node = await createLibp2p({
    addresses: {
      listen: ['/ip4/0.0.0.0/tcp/0']
    },
    transports: [tcp()],
    streamMuxers: [yamux(), mplex()],
    connectionEncryption: [noise()],
    dht: kadDHT()
  })

[achingbrain]

There are a few different issues here.

it failed with following error : Cannot find module ..../llibp2p/dist/src/index.js improted from ..../js-libp2p/examples/peer-and-content-routing/1.js

This is because you need to build the monorepo first.

$ git clone https://....
$ cd libp2p
$ npm i && npm run build
$ cd example/foo
$ node 1.js

After creating project with latest version of libp2p, it gives me following error :
Command : ts-node --esm index.ts

Error : No "exports" main defined in project_path/node_modules/libp2p/package.json

Please see discussion in #1583 but the TLDR is that ts-node doesn't support ESM yet.

dht from the example should be moved to peerRouters: [kadDHT()]?

No, the KAD-DHT implementation should be in the services map, though it's unrelated to the above issues..

[HoseinHaqiqian]

Thanks.