helper for address

Author: humanagent

README.md

@@ -29,9 +29,6 @@ You can generate random keys with the following command:
 yarn gen:keys
 ```
 
-> [!WARNING]
-> Running the `gen:keys` script will overwrite the existing `.env` file.
-
 ### Fetching messages
 
 There are to ways to fetch messages from a conversation, one is by starting a stream
@@ -72,32 +69,6 @@ for (const conversation of conversations) {
 }
 ```
 
-### Working with addresses
-
-Conversations in XMTP can be `DMs` or `Groups`. The underlying technicalities are the same, but DMs are essentially groups locked between two users that can be reused - basically a fixed group of 2. This is how MLS works.
-
-Each member of a conversation has the following properties:
-
-```tsx
-inboxId: string; // unique identifier from the XMTP network
-accountAddresses: Array<string>; // ethereum network addresses
-installationIds: Array<string>; // How many active devices the user has
-permissionLevel: PermissionLevel; // In the context of a group, if it's admin or not
-consentState: ConsentState; // If it's blocked or allowed via consent
-```
-
-To fetch an ethereum address in a DM, you can use a script like the following:
-
-```tsx
-const address =
-  (await group.members?.find(
-    (member: any) => member.inboxId === dm.dmPeerInboxId,
-  )?.accountAddresses[0]) || "";
-```
-
-> [!WARNING]
-> XMTP is working on integrating passkeys as a pillar of identity. Expect a breaking change soon as XMTP prepares for the first v3 stable release.
-
 ## Web inbox
 
 Interact with the XMTP network using [xmtp.chat](https://xmtp.chat), the official web inbox for developers.

examples/gated-group/README.md

@@ -20,9 +20,6 @@ You can generate random keys with the following command:
 yarn gen:keys
 ```
 
-> [!WARNING]
-> Running the `gen:keys` script will overwrite the existing `.env` file.
-
 ## Start the XMTP agent
 
 Start your XMTP client and begin listening to messages. The bot responds to the following commands:

examples/gm/index.ts

@@ -1,5 +1,9 @@
 import { Client, type XmtpEnv } from "@xmtp/node-sdk";
-import { createSigner, getEncryptionKeyFromHex } from "@/helpers";
+import {
+  createSigner,
+  getAddressOfMember,
+  getEncryptionKeyFromHex,
+} from "@/helpers";
 
 /* Get the wallet key associated to the public key of
  * the agent and the encryption key for the local db
@@ -62,8 +66,10 @@ async function main() {
       console.log("Unable to find conversation, skipping");
       continue;
     }
+    const members = await conversation.members();
 
-    console.log(`Sending "gm" response...`);
+    const address = getAddressOfMember(members, message.senderInboxId);
+    console.log(`Sending "gm" response to ${address}...`);
     /* Send a message to the conversation */
     await conversation.send("gm");
 

examples/gpt/README.md

@@ -18,9 +18,6 @@ You can generate random keys with the following command:
 yarn gen:keys
 ```
 
-> [!WARNING]
-> Running the `gen:keys` script will overwrite the existing `.env` file.
-
 ## Usage
 
 ```tsx

helpers/index.ts

@@ -1,5 +1,5 @@
 import { getRandomValues } from "node:crypto";
-import { IdentifierKind } from "@xmtp/node-bindings";
+import { IdentifierKind, type GroupMember } from "@xmtp/node-bindings";
 import { type Signer } from "@xmtp/node-sdk";
 import { fromString, toString } from "uint8arrays";
 import { createWalletClient, http, toBytes } from "viem";
@@ -44,6 +44,25 @@ export const createSigner = (key: `0x${string}`): Signer => {
   };
 };
 
+/**
+ * Get the address of a member
+ * @param members - The members of the group
+ * @param inboxId - The inboxId of the member
+ * @returns The address of the member
+ */
+export function getAddressOfMember(members: GroupMember[], inboxId: string) {
+  for (const member of members) {
+    for (const identifier of member.accountIdentifiers) {
+      if (
+        identifier.identifierKind === IdentifierKind.Ethereum &&
+        member.inboxId === inboxId
+      ) {
+        return identifier.identifier;
+      }
+    }
+  }
+}
+
 /**
  * Generate a random encryption key
  * @returns The encryption key

integrations/gaia/README.md

@@ -22,9 +22,6 @@ You can generate random keys with the following command:
 yarn gen:keys
 ```
 
-> [!WARNING]
-> Running the `gen:keys` script will overwrite the existing `.env` file.
-
 ## Usage
 
 ```tsx

integrations/grok/README.md

@@ -18,9 +18,6 @@ You can generate random keys with the following command:
 yarn gen:keys
 ```
 
-> [!WARNING]
-> Running the `gen:keys` script will overwrite the existing `.env` file.
-
 ## Usage
 
 ```tsx

scripts/generateKeys.ts

@@ -15,6 +15,9 @@ await writeFile(
   `WALLET_KEY=${walletKey}
 ENCRYPTION_KEY=${encryptionKeyHex}
 `,
+  {
+    flag: "a",
+  },
 );
 
 console.log(`Keys written to ${filePath}`);