Add ETHO and ETI wallet payment support

backend/app.py

@@ -60,6 +60,11 @@ RPC_ARBITRUM_URL = os.getenv("OTB_BILLING_RPC_ARBITRUM", "https://arbitrum-one-r
 RPC_ARBITRUM_URL_2 = os.getenv("OTB_BILLING_RPC_ARBITRUM_2", "https://rpc.ankr.com/arbitrum")
 RPC_ARBITRUM_URL_3 = os.getenv("OTB_BILLING_RPC_ARBITRUM_3", "https://arb1.arbitrum.io/rpc")
 
+RPC_ETICA_URL = os.getenv("OTB_BILLING_RPC_ETICA", "https://rpc.etica-stats.org")
+RPC_ETICA_URL_2 = os.getenv("OTB_BILLING_RPC_ETICA_2", "https://eticamainnet.eticaprotocol.org")
+RPC_ETHO_URL = os.getenv("OTB_BILLING_RPC_ETHO", "https://rpc.ethoprotocol.com")
+RPC_ETHO_URL_2 = os.getenv("OTB_BILLING_RPC_ETHO_2", "https://rpc4.ethoprotocol.com")
+
 CRYPTO_PROCESSING_TIMEOUT_SECONDS = int(os.getenv("OTB_BILLING_CRYPTO_PROCESSING_TIMEOUT_SECONDS", "180"))
 CRYPTO_WATCH_INTERVAL_SECONDS = int(os.getenv("OTB_BILLING_CRYPTO_WATCH_INTERVAL_SECONDS", "30"))
 CRYPTO_WATCHER_STARTED = False
@@ -230,11 +235,23 @@ def get_invoice_crypto_options(invoice):
             "label": "ETHO (Etho)",
             "payment_currency": "ETHO",
             "wallet_address": CRYPTO_EVM_PAYMENT_ADDRESS,
-            "wallet_capable": False,
+            "wallet_capable": True,
             "asset_type": "native",
-            "chain_id": None,
+            "chain_id": 1313114,
             "decimals": 18,
             "token_contract": None,
+            "rpc_urls": [RPC_ETHO_URL, RPC_ETHO_URL_2],
+            "chain_add_params": {
+                "chainId": "0x14095a",
+                "chainName": "Etho Protocol",
+                "nativeCurrency": {
+                    "name": "Etho Protocol",
+                    "symbol": "ETHO",
+                    "decimals": 18
+                },
+                "rpcUrls": [RPC_ETHO_URL, RPC_ETHO_URL_2],
+                "blockExplorerUrls": ["https://explorer.ethoprotocol.com"]
+            },
         },
         "ETI": {
             "symbol": "ETI",
@@ -242,11 +259,23 @@ def get_invoice_crypto_options(invoice):
             "label": "ETI (Etica)",
             "payment_currency": "ETI",
             "wallet_address": CRYPTO_EVM_PAYMENT_ADDRESS,
-            "wallet_capable": False,
+            "wallet_capable": True,
             "asset_type": "token",
-            "chain_id": None,
+            "chain_id": 61803,
             "decimals": 18,
             "token_contract": "0x34c61EA91bAcdA647269d4e310A86b875c09946f",
+            "rpc_urls": [RPC_ETICA_URL, RPC_ETICA_URL_2],
+            "chain_add_params": {
+                "chainId": "0xf16b",
+                "chainName": "Etica",
+                "nativeCurrency": {
+                    "name": "Etica Gas",
+                    "symbol": "EGAZ",
+                    "decimals": 18
+                },
+                "rpcUrls": [RPC_ETICA_URL, RPC_ETICA_URL_2],
+                "blockExplorerUrls": ["https://explorer.etica-stats.org"]
+            },
         },
     }
 
@@ -276,6 +305,10 @@ def get_rpc_urls_for_chain(chain_name):
         return [u for u in [RPC_ETHEREUM_URL, RPC_ETHEREUM_URL_2, RPC_ETHEREUM_URL_3] if u]
     if chain == "arbitrum":
         return [u for u in [RPC_ARBITRUM_URL, RPC_ARBITRUM_URL_2, RPC_ARBITRUM_URL_3] if u]
+    if chain == "etica":
+        return [u for u in [RPC_ETICA_URL, RPC_ETICA_URL_2] if u]
+    if chain == "etho":
+        return [u for u in [RPC_ETHO_URL, RPC_ETHO_URL_2] if u]
     return []
 
 def rpc_call_any(rpc_urls, method, params):

templates/portal_invoice_detail.html

@@ -262,6 +262,7 @@
                                         data-amount="{{ pending_crypto_payment.payment_amount }}"
                                         data-decimals="{{ selected_crypto_option.decimals }}"
                                         data-token-contract="{{ selected_crypto_option.token_contract or '' }}"
+                                        data-chain-add='{{ (selected_crypto_option.chain_add_params or {})|tojson|safe }}'
                                     >
                                         Open MetaMask / Rabby
                                     </button>
@@ -441,12 +442,29 @@
         return "0x" + method + addr + amtHex;
     }
 
-    async function switchChain(chainId) {
+    async function switchChain(chainId, chainAddParams) {
         const hexChainId = "0x" + Number(chainId).toString(16);
+        try {
             await window.ethereum.request({
                 method: "wallet_switchEthereumChain",
                 params: [{ chainId: hexChainId }]
             });
+            return;
+        } catch (err) {
+            const code = err && (err.code ?? err?.data?.originalError?.code);
+            if ((code === 4902 || String(err).includes("4902")) && chainAddParams) {
+                await window.ethereum.request({
+                    method: "wallet_addEthereumChain",
+                    params: [chainAddParams]
+                });
+                await window.ethereum.request({
+                    method: "wallet_switchEthereumChain",
+                    params: [{ chainId: hexChainId }]
+                });
+                return;
+            }
+            throw err;
+        }
     }
 
     function buildMetaMaskMobileLink() {
@@ -571,6 +589,12 @@ Reference: ${invoiceRef}`;
             const amount = this.dataset.amount;
             const decimals = Number(this.dataset.decimals || "18");
             const tokenContract = this.dataset.tokenContract || "";
+            let chainAddParams = null;
+            try {
+                chainAddParams = this.dataset.chainAdd ? JSON.parse(this.dataset.chainAdd) : null;
+            } catch (err) {
+                chainAddParams = null;
+            }
 
             const setStatus = (msg) => {
                 if (walletStatus) walletStatus.textContent = msg;
@@ -589,7 +613,7 @@ Reference: ${invoiceRef}`;
 
                 if (chainId && chainId !== "None" && chainId !== "") {
                     try {
-                        await switchChain(Number(chainId));
+                        await switchChain(Number(chainId), chainAddParams);
                     } catch (err) {
                         setStatus(`Chain switch failed: ${err.message || err}`);
                         this.disabled = false;