Add blockchain ID to instance API response

README.md

@@ -6,12 +6,14 @@ Built on [ActivityPub](https://activitypub.rocks/) protocol, self-hosted, lightw
 
 Unique features enabled by blockchain integration:
 
-- [Sign-in with Ethereum wallet](https://eips.ethereum.org/EIPS/eip-4361).
+- [Sign-in with a wallet](https://eips.ethereum.org/EIPS/eip-4361).
 - Donations.
 - Paid subscriptions.
 - Proving membership with a token.
 - Converting posts into NFTs.
 
+Currently only Ethereum and other EVM-compatible blockchains are supported.
+
 Smart contracts repo: https://codeberg.org/silverpill/mitra-contracts
 
 Frontend repo: https://codeberg.org/silverpill/mitra-web

docs/openapi.yaml

@@ -762,15 +762,23 @@ components:
           description: Post character limit.
           type: integer
           example: 5000
+        blockchain_id:
+          description: CAIP-2 chain ID.
+          type: string
+          nullable: true
+          example: 'eip155:1'
         blockchain_explorer_url:
           description: Blockchain explorer base URL.
           type: string
+          nullable: true
         blockchain_contract_address:
           description: Blockchain contract address.
           type: string
+          nullable: true
         ipfs_gateway_url:
           description: IPFS gateway URL.
           type: string
+          nullable: true
     Mention:
       type: object
       properties:
@@ -802,6 +810,7 @@ components:
             - favourite
             - mention
             - reblog
+            - subscription
           example: reply
         created_at:
           description: The timestamp of the notification.

src/mastodon_api/instance/types.rs

@@ -14,6 +14,7 @@ pub struct InstanceInfo {
 
     login_message: String,
     post_character_limit: usize,
+    blockchain_id: Option<String>,
     blockchain_explorer_url: Option<String>,
     blockchain_contract_address: Option<String>,
     ipfs_gateway_url: Option<String>,
@@ -38,6 +39,8 @@ impl From<&Config> for InstanceInfo {
             registrations: config.registrations_open,
             login_message: config.login_message.clone(),
             post_character_limit: config.post_character_limit,
+            blockchain_id: config.blockchain.as_ref()
+                .map(|val| val.chain_id.clone()),
             blockchain_explorer_url: config.blockchain.as_ref()
                 .and_then(|val| val.explorer_url.clone()),
             blockchain_contract_address: config.blockchain.as_ref()