From cb37451f8f5fd7bc81758eb9695e4f68b833a83e Mon Sep 17 00:00:00 2001
From: Simon Warta <simon@warta.it>
Date: Mon, 22 Mar 2021 16:46:10 +0100
Subject: [PATCH] Add multisig address derivation example

---
 packages/cli/examples/multisig_address.ts | 31 +++++++++++++++++++++++
 packages/cli/package.json                 |  1 +
 packages/cli/run_examples.sh              |  1 +
 3 files changed, 33 insertions(+)
 create mode 100644 packages/cli/examples/multisig_address.ts

diff --git a/packages/cli/examples/multisig_address.ts b/packages/cli/examples/multisig_address.ts
new file mode 100644
index 00000000..8e754d2e
--- /dev/null
+++ b/packages/cli/examples/multisig_address.ts
@@ -0,0 +1,31 @@
+import { MultisigThresholdPubkey, pubkeyToRawAddress } from "@cosmjs/amino";
+import { Bech32 } from "@cosmjs/encoding";
+
+// https://github.com/cosmos/cosmjs/issues/673#issuecomment-779847238
+const multisigPubkey: MultisigThresholdPubkey = {
+  "type": "tendermint/PubKeyMultisigThreshold",
+  "value": {
+    "threshold": "3",
+    "pubkeys": [
+      {
+        "type": "tendermint/PubKeySecp256k1",
+        "value": "A4KZH7VSRwW/6RTExROivRYKsQP63LnGcBlXFo+eKGpQ"
+      },
+      {
+        "type": "tendermint/PubKeySecp256k1",
+        "value": "A8/Cq4VigOnDgl6RSdcx97fjrdCo/qwAX6C34n7ZDZLs"
+      },
+      {
+        "type": "tendermint/PubKeySecp256k1",
+        "value": "ApKgZuwy03xgdRnXqG6yEHATomsWDOPacy7nbpsuUCSS"
+      },
+      {
+        "type": "tendermint/PubKeySecp256k1",
+        "value": "Aptm8E3WSSFS0RTAIUW+bLi/slYnTEE+h4qPTG28CHfq"
+      }
+    ]
+  }
+};
+
+const address = Bech32.encode("cosmos", pubkeyToRawAddress(multisigPubkey));
+console.log(address);
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 5949e477..7405f013 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -39,6 +39,7 @@
     "!**/testdata/"
   ],
   "dependencies": {
+    "@cosmjs/amino": "^0.25.0-alpha.0",
     "@cosmjs/cosmwasm-launchpad": "^0.25.0-alpha.0",
     "@cosmjs/cosmwasm-stargate": "^0.25.0-alpha.0",
     "@cosmjs/crypto": "^0.25.0-alpha.0",
diff --git a/packages/cli/run_examples.sh b/packages/cli/run_examples.sh
index fde36611..8ec0e10e 100755
--- a/packages/cli/run_examples.sh
+++ b/packages/cli/run_examples.sh
@@ -13,6 +13,7 @@ cosmwasm-cli --init examples/generate_address.ts --code "process.exit(0)"
 cosmwasm-cli --init examples/helpers.ts --code "process.exit(0)"
 cosmwasm-cli --init examples/local_faucet.ts --code "process.exit(0)"
 cosmwasm-cli --init examples/mask.ts --code "process.exit(0)"
+cosmwasm-cli --init examples/multisig_address.ts --code "process.exit(0)"
 if [ -n "${SIMAPP_ENABLED:-}" ]; then
   cosmwasm-cli --init examples/stargate.ts --code "process.exit(0)"
 fi