BaseChainClient

JsonToArray

Helper function to convert JSON to Uint8Array.

const JsonToArray = function (json: Record<string, any>) {
  var str = JSON.stringify(json, null, 0);
  var ret = new Uint8Array(str.length);
  for (var i = 0; i < str.length; i++) {
    ret[i] = str.charCodeAt(i);
  }
  return ret;

Class

A base class that extends the other clients.

export default class BaseChainClient implements Partial<ChainClient> {
  public signingClient?: ChainClient["signingClient"];
  public queryClient?: ChainClient["queryClient"];
  public signer = "";

Name	Type	Description
signingClient	Same as in the ChainClient interface.	The client used to sign any transactions braodcast to the chain.
queryClient	Same as in the ChainClient interface.	The client used to query the chain.
signer	string	The current signer address.

Methods

encodeExecuteMsg

Converts an execute message to an EncodeObject for signing or simulating.

encodeExecuteMsg(
    address: string,
    msg: Msg,
    funds: Coin[]
  ): MsgExecuteContractEncodeObject {
    return {
      typeUrl: "/cosmwasm.wasm.v1.MsgExecuteContract",
      value: {
        sender: this.signer,
        contract: address,
        msg: JsonToArray(msg),
        funds,
      },
    };
  }

Name	Type	Description
address	string	The contract address you are executing on.
msg	Msg	The msg to encode.
funds	Coin[]	The funds to attach to the message.

Msg

export type Msg = Record<string, unknown>;

encodeInstantiateMsg

Converts an instantiate message to an EncodeObject for signing or simulating.

encodeInstantiateMsg(
    codeId: number,
    msg: Msg,
    label: string
  ): MsgInstantiateContractEncodeObject {
    return {
      typeUrl: "/cosmwasm.wasm.v1.MsgInstantiateContract",
      value: {
        sender: this.signer,
        codeId: Long.fromInt(codeId),
        msg: JsonToArray(msg),
        label,
      },
    };
  }

Name	Type	Description
codeId	number	The code Id of the contract you are looking to instantiate.
msg	Msg	The instantiation message.
label	string	String of text to provide additional information on the transaction.

encodeUploadMessage

Converts an upload message to an EncodeObject for signing or simulating.

encodeUploadMessage(wasmByteCode: Uint8Array): MsgStoreCodeEncodeObject {
    return {
      typeUrl: "/cosmwasm.wasm.v1.MsgStoreCode",
      value: {
        sender: this.signer,
        wasmByteCode,
      },
    };
  }

Name	Type	Description
wasmByteCode	Uint8Array	The wasm binary code to upload to chain.

encodeMigrateMessage

Converts a migrate message to an EncodeObject for signing or simulating.

encodeMigrateMessage(
    address: string,
    codeId: number,
    msg: Msg
  ): MsgMigrateContractEncodeObject {
    return {
      typeUrl: "/cosmwasm.wasm.v1.MsgMigrateContract",
      value: {
        sender: this.signer,
        codeId: Long.fromNumber(codeId),
        contract: address,
        msg: JsonToArray(msg),
      },
    };
  }

Name	Type	Description
address	string	The contract address to migrate.
codeId	number	The code Id of the contract to migrate to.
msg	Msg	The migrate message.

encodeSendMessage

Converts a Send message to an EncodeObject for signing or simulating.

encodeSendMessage(
    receivingAddress: string,
    amount: Coin[]
  ): MsgSendEncodeObject {
    return {
      typeUrl: "/cosmos.bank.v1beta1.MsgSend",
      value: {
        fromAddress: this.signer,
        toAddress: receivingAddress,
        amount,
      },
    };
  }

Name	Type	Description
receivingAddress	string	The address to receive the funds sent.
amount	Coin[]	The funds to send.