From 4c8c27cc372995ce0c944a34d5ca3d443ee4ee4a Mon Sep 17 00:00:00 2001
From: Simon Warta <simon@warta.it>
Date: Thu, 6 Apr 2023 18:19:35 +0200
Subject: [PATCH] Implement Tendermint auto-detection in StargateClient

---
 packages/stargate/src/stargateclient.ts | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/packages/stargate/src/stargateclient.ts b/packages/stargate/src/stargateclient.ts
index d4969afa..c412f262 100644
--- a/packages/stargate/src/stargateclient.ts
+++ b/packages/stargate/src/stargateclient.ts
@@ -5,6 +5,7 @@ import { Uint53 } from "@cosmjs/math";
 import {
   HttpEndpoint,
   Tendermint34Client,
+  Tendermint37Client,
   TendermintClient,
   toRfc3339WithNanoseconds,
 } from "@cosmjs/tendermint-rpc";
@@ -205,7 +206,18 @@ export class StargateClient {
     endpoint: string | HttpEndpoint,
     options: StargateClientOptions = {},
   ): Promise<StargateClient> {
-    const tmClient = await Tendermint34Client.connect(endpoint);
+    // Tendermint/CometBFT 0.34/0.37 auto-detection. Starting with 0.37 we seem to get reliable versions again 🎉
+    // Using 0.34 as the fallback.
+    let tmClient: TendermintClient;
+    const tm37Client = await Tendermint37Client.connect(endpoint);
+    const version = (await tm37Client.status()).nodeInfo.version;
+    if (version.startsWith("0.37.")) {
+      tmClient = tm37Client;
+    } else {
+      tm37Client.disconnect();
+      tmClient = await Tendermint34Client.connect(endpoint);
+    }
+
     return StargateClient.create(tmClient, options);
   }