Add mapping with additional blockchain info to instance API response

config.yaml.example

@@ -13,6 +13,7 @@ registrations_open: true
 blockchain:
   # Parameters for hardhat local node
   chain_id: eip155:31337
+  chain_info: null
   contract_address: '0xDc64a140Aa3E981100a9becA4E685f962f0cF6C9'
   contract_dir: contracts
   api_url: 'http://127.0.0.1:8546'

contrib/mitra_config.yaml

@@ -27,8 +27,10 @@ registrations_open: false
 #blocked_instances: []
 
 # Blockchain integration
+# Signing key for ethereum integration can be generated with `mitractl generate-ethereum-address`
 #blockchain:
 #  chain_id: eip155:31337
+#  chain_info: null
 #  contract_address: '0xDc64a140Aa3E981100a9becA4E685f962f0cF6C9'
 #  contract_dir: /usr/share/mitra/contracts
 #  api_url: 'http://127.0.0.1:8545'

docs/openapi.yaml

@@ -775,6 +775,10 @@ components:
           description: Blockchain contract address.
           type: string
           nullable: true
+        blockchain_info:
+          description: Additional information about blockchain
+          type: object
+          nullable: true
         ipfs_gateway_url:
           description: IPFS gateway URL.
           type: string

src/config.rs

@@ -1,3 +1,4 @@
+use std::collections::HashMap;
 use std::path::{Path, PathBuf};
 use std::str::FromStr;
 
@@ -82,6 +83,8 @@ fn default_post_character_limit() -> usize { 2000 }
 pub struct BlockchainConfig {
     // CAIP-2 chain ID (https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-2.md)
     pub chain_id: String,
+    // Additional information for clients
+    pub chain_info: Option<HashMap<String, String>>,
     pub contract_address: String,
     pub contract_dir: PathBuf,
     pub api_url: String,

src/mastodon_api/instance/types.rs

@@ -1,3 +1,5 @@
+use std::collections::HashMap;
+
 use serde::Serialize;
 
 use crate::config::Config;
@@ -17,6 +19,7 @@ pub struct InstanceInfo {
     blockchain_id: Option<String>,
     blockchain_explorer_url: Option<String>,
     blockchain_contract_address: Option<String>,
+    blockchain_info: Option<HashMap<String, String>>,
     ipfs_gateway_url: Option<String>,
 }
 
@@ -45,6 +48,8 @@ impl From<&Config> for InstanceInfo {
                 .and_then(|val| val.explorer_url.clone()),
             blockchain_contract_address: config.blockchain.as_ref()
                 .map(|val| val.contract_address.clone()),
+            blockchain_info: config.blockchain.as_ref()
+                .and_then(|val| val.chain_info.clone()),
             ipfs_gateway_url: config.ipfs_gateway_url.clone(),
         }
     }