Extension Wallet
Integration
Cosmos Chains
Deprecated
Sign Transaction

Sign Transcations

Sign transcation via Cosmostation Extension

Sign Amino

Code using @cosmostation/extension-client

try {
  // ...
  const response = await provider.signAmino(
    "cosmoshub-4",
    {
      chain_id: "cosmoshub-4",
      fee: { amount: [{ denom: "uatom", amount: "5000" }], gas: "200000" },
      memo: "",
      msgs: [
        {
          type: "cosmos-sdk/MsgSend",
          value: {
            from_address: "cosmos1wepghweioghweiog",
            to_address: "cosmos1weogihweoighweoigheoiw",
            amount: [{ denom: "uatom", amount: "5000" }],
          },
        },
      ],
      sequence: "20",
      account_number: "632177",
    },
    {
      memo: true, // optional
      fee: true, // optional
      gasRate: {
        // optional
        average: "0.2",
        low: "0.02",
        tiny: "0.002",
      },
    }
  );
} catch (e) {
  if (e instanceof InstallError) {
    console.log("not installed");
  }
 
  if (e.code === 4001) {
    console.log("user rejected request");
  }
 
  // exception
}

Vanilla Code

const response = await window.cosmostation.cosmos.request({
  method: "cos_signAmino",
  params: {
    chainName: "cosmoshub-4",
    doc: {
      chain_id: "cosmoshub-4",
      fee: { amount: [{ denom: "uatom", amount: "5000" }], gas: "200000" },
      memo: "",
      msgs: [
        {
          type: "cosmos-sdk/MsgSend",
          value: {
            from_address: "cosmos1wepghweioghweiog",
            to_address: "cosmos1weogihweoighweoigheoiw",
            amount: [{ denom: "uatom", amount: "5000" }],
          },
        },
      ],
      sequence: "20",
      account_number: "632177",
    },
    isEditMemo: true, // optional
    isEditFee: true, // optional
    gasRate: {
      // optional
      average: "0.2",
      low: "0.02",
      tiny: "0.002",
    },
  },
});

Response

Model
export type SignAminoResponse = {
  signature: string;
  pub_key: { type: string; value: string };
  signed_doc: SignAminoDoc;
};
 
export type SignAminoDoc = {
  chain_id: string;
  sequence: string;
  account_number: string;
  fee: Fee;
  memo: string;
  msgs: Msg[];
};
 
export type Amount = {
  denom: string;
  amount: string;
};
 
export type Msg<T = unknown> = {
  type: string;
  value: T;
};
 
export type Fee = { amount: Amount[]; gas: string };
Example
{
  "pub_key": {
    "type": "tendermint/PubKeySecp256k1",
    "value": "A00Jvfv5luvAODNiOPIMZpDTWSq7qvoFV8k7ptdsDqLU"
  },
  "signature": "signature==",
  "signed_doc": {
    "chain_id": "cosmoshub-4",
    "fee": {
      "amount": [{ "denom": "uatom", "amount": "5000" }],
      "gas": "200000"
    },
    "memo": "",
    "msgs": [
      {
        "type": "cosmos-sdk/MsgSend",
        "value": {
          "from_address": "cosmos1gr0e3pj3y6fqvzyfm0qxyw9h5dwfrvh8zv3x9p",
          "to_address": "cosmos1ursv4z57pw8ly2jsgn09dyjha4qrk7aen987ld",
          "amount": [{ "denom": "uatom", "amount": "5000" }]
        }
      }
    ],
    "sequence": "20",
    "account_number": "632177"
  }
}

Sign Direct

Code using @cosmostation/extension-client

try {
  // ...
  const response = await provider.signDirect(
    "cosmos",
    {
      chain_id: "cosmoshub-4",
      account_number: "1",
      auth_info_bytes: [
        10, 80, 10, 70, 10, 31, 47, 99, 111, 115, 109, 111, 115, 46, 99, 114,
        121, 112, 116, 111, 46, 115, 101, 99, 112, 50, 53, 54, 107, 49, 46, 80,
        117, 98, 75, 101, 121, 18, 35, 10, 33, 3, 77, 9, 189, 251, 249, 150,
        235, 192, 56, 51, 98, 56, 242, 12, 102, 144, 211, 89, 42, 187, 170, 250,
        5, 87, 201, 59, 166, 215, 108, 14, 162, 212, 18, 4, 10, 2, 8, 127, 24,
        14, 18, 19, 10, 13, 10, 5, 117, 97, 116, 111, 109, 18, 4, 50, 48, 48,
        48, 16, 128, 241, 4,
      ],
      body_bytes: [
        10, 133, 1, 10, 28, 47, 99, 111, 115, 109, 111, 115, 46, 98, 97, 110,
        107, 46, 118, 49, 98, 101, 116, 97, 49, 46, 77, 115, 103, 83, 101, 110,
        100, 18, 101, 10, 42, 99, 114, 101, 49, 103, 114, 48, 101, 51, 112, 106,
        51, 121, 54, 102, 113, 118, 122, 121, 102, 109, 48, 113, 120, 121, 119,
        57, 104, 53, 100, 119, 102, 114, 118, 104, 56, 120, 121, 122, 114, 115,
        118, 18, 42, 99, 114, 101, 49, 120, 53, 119, 103, 104, 54, 118, 119,
        121, 101, 54, 48, 119, 118, 51, 100, 116, 115, 104, 115, 57, 100, 109,
        113, 103, 103, 119, 102, 120, 50, 108, 100, 104, 103, 108, 117, 101,
        122, 26, 11, 10, 4, 117, 99, 114, 101, 18, 3, 49, 48, 48, 18, 0,
      ],
    },
    { memo: true, fee: true } // edit | optional (default: { memo: false, fee: false }),
  );
} catch (e) {
  if (e instanceof InstallError) {
    console.log("not installed");
  }
 
  if (e.code === 4001) {
    console.log("user rejected request");
  }
 
  // exception
}

Vanilla Code

const response = await window.cosmostation.cosmos.request({
  method: "cos_signDirect",
  params: {
    chainName: "cosmos",
    doc: {
      chain_id: "cosmoshub-4",
      account_number: "1",
      auth_info_bytes: [
        10, 80, 10, 70, 10, 31, 47, 99, 111, 115, 109, 111, 115, 46, 99, 114,
        121, 112, 116, 111, 46, 115, 101, 99, 112, 50, 53, 54, 107, 49, 46, 80,
        117, 98, 75, 101, 121, 18, 35, 10, 33, 3, 77, 9, 189, 251, 249, 150,
        235, 192, 56, 51, 98, 56, 242, 12, 102, 144, 211, 89, 42, 187, 170, 250,
        5, 87, 201, 59, 166, 215, 108, 14, 162, 212, 18, 4, 10, 2, 8, 127, 24,
        14, 18, 19, 10, 13, 10, 5, 117, 97, 116, 111, 109, 18, 4, 50, 48, 48,
        48, 16, 128, 241, 4,
      ],
      body_bytes: [
        10, 133, 1, 10, 28, 47, 99, 111, 115, 109, 111, 115, 46, 98, 97, 110,
        107, 46, 118, 49, 98, 101, 116, 97, 49, 46, 77, 115, 103, 83, 101, 110,
        100, 18, 101, 10, 42, 99, 114, 101, 49, 103, 114, 48, 101, 51, 112, 106,
        51, 121, 54, 102, 113, 118, 122, 121, 102, 109, 48, 113, 120, 121, 119,
        57, 104, 53, 100, 119, 102, 114, 118, 104, 56, 120, 121, 122, 114, 115,
        118, 18, 42, 99, 114, 101, 49, 120, 53, 119, 103, 104, 54, 118, 119,
        121, 101, 54, 48, 119, 118, 51, 100, 116, 115, 104, 115, 57, 100, 109,
        113, 103, 103, 119, 102, 120, 50, 108, 100, 104, 103, 108, 117, 101,
        122, 26, 11, 10, 4, 117, 99, 114, 101, 18, 3, 49, 48, 48, 18, 0,
      ],
    },
    isEditFee: true,
    isEditMemo: true,
  },
});

Response

Model
export type SignDirectDoc = {
  chain_id: string;
  body_bytes: Uint8Array;
  auth_info_bytes: Uint8Array;
  account_number: string;
};
 
export type SignDirectResponse = {
  signature: string;
  pub_key: { type: string; value: string };
  signed_doc: SignDirectDoc;
};
Example
{
  "pub_key": {
    "type": "tendermint/PubKeySecp256k1",
    "value": "A00Jvfv5luvAODNiOPIMZpDTWSq7qvoFV8k7ptdsDqLU"
  },
  "signature": "signature==",
  "signed_doc": {
    "chain_id": "cosmoshub-4",
    "account_number": "1",
    "auth_info_bytes": [
      10, 80, 10, 70, 10, 31, 47, 99, 111, 115, 109, 111, 115, 46, 99, 114, 121,
      112, 116, 111, 46, 115, 101, 99, 112, 50, 53, 54, 107, 49, 46, 80, 117,
      98, 75, 101, 121, 18, 35, 10, 33, 3, 77, 9, 189, 251, 249, 150, 235, 192,
      56, 51, 98, 56, 242, 12, 102, 144, 211, 89, 42, 187, 170, 250, 5, 87, 201,
      59, 166, 215, 108, 14, 162, 212, 18, 4, 10, 2, 8, 127, 24, 14, 18, 19, 10,
      13, 10, 5, 117, 97, 116, 111, 109, 18, 4, 50, 48, 48, 48, 16, 128, 241, 4
    ],
    "body_bytes": [
      10, 133, 1, 10, 28, 47, 99, 111, 115, 109, 111, 115, 46, 98, 97, 110, 107,
      46, 118, 49, 98, 101, 116, 97, 49, 46, 77, 115, 103, 83, 101, 110, 100,
      18, 101, 10, 42, 99, 114, 101, 49, 103, 114, 48, 101, 51, 112, 106, 51,
      121, 54, 102, 113, 118, 122, 121, 102, 109, 48, 113, 120, 121, 119, 57,
      104, 53, 100, 119, 102, 114, 118, 104, 56, 120, 121, 122, 114, 115, 118,
      18, 42, 99, 114, 101, 49, 120, 53, 119, 103, 104, 54, 118, 119, 121, 101,
      54, 48, 119, 118, 51, 100, 116, 115, 104, 115, 57, 100, 109, 113, 103,
      103, 119, 102, 120, 50, 108, 100, 104, 103, 108, 117, 101, 122, 26, 11,
      10, 4, 117, 99, 114, 101, 18, 3, 49, 48, 48, 18, 0
    ]
  }
}