# List Lambda SDK

To view the list of their registered lambdas, a user  / an account would need to have to have been created and have an associated session by going through the [Authenticating with SDK](/authentication/passkeys/authentication/authenticating-with-sdk.md) flow. Once you have the required details you can call the sign method by instantiating a Passport instance from the SDK as shown below.

```javascript
import { Passport } from "@0xpass/passport";
import { WebauthnSigner } from "@0xpass/webauthn-signer";

const signer = new WebauthnSigner({
      rpId: window.location.hostname,
      rpName: "rpName",
});

const passport = new Passport({
    scopeId: "insert_your_scope_id",
    signer: signer
});

const userInput {
   username: "insert_username_here"
   userDisplayName: "insert_user_display_name_here"
}

await passport.setupEncryption(); 
await passport.authenticate(userInput);


// Generate a threshold signature
const lambdas = await passport.listLambda();
console.log(lambdas);
```

#### listLambda Response

A successful response return list of lambda objects currently registered with user.

```json
{
    "jsonrpc": "2.0",
    "result": [
        {
            "id": "153634-f572-40ee-ba2a-efee345a3691",
            "config": {
                "actions": {
                    "data": "0x000000",
                    "substitution": true,
                    "type": "personal_sign"
                },
                "authorization": {
                    "type": "none"
                },
                "triggers": [
                   { "type": "hook"},
                ],
                "conditions": [
                    {
                        "code": "return true",
                        "output_type": "integer",
                        "substitution": true,
                        "type": "code"
                    }
                ],
                "envs": [],
                "max_executions": 0,
                "postHook": [],
                "verifications": {
                    "count": 1
                }
            },
            "status": "ready",
            "proof": null,
            "created_at": "2024-03-29T19:28:43",
            "updated_at": "2024-03-29T19:46:48",
            "total_executions": 2,
            "ok_executions": 2
        }
    ]
}
```


---

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```
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