​
Overview

This guide introduces Cobo WaaS API in Go SDK, enabling developers to integrate with Cobo’s Custodial/MPC services seamlessly using the Go programming language.

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Before You Begin

  • Ensure that you have created an account and configured Cobo’s Custodial/MPC services. For detailed instructions, please refer to the Quickstart guide.

  • To access the API documentation, navigate to the API references section.

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Using the Cobo Go SDK

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GitHub

The Official Go SDK for Cobo WaaS API.

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Requirements

Go 1.18 or newer.

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Installation

add dependency

go get github.com/CoboGlobal/[email protected]

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Code Sample

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Generate Key Pair

import (
	"fmt"
	"github.com/CoboGlobal/cobo-go-api/cobo_custody"
)

apiSecret, apiKey := cobo_custody.GenerateKeyPair()
fmt.Println("API_SECRET:", apiSecret)
fmt.Println("API_KEY:", apiKey)

For more information on the API key, please click here.

​
Initialize ApiSigner

ApiSigner can be instantiated through

import "github.com/CoboGlobal/cobo-go-api/cobo_custody"

var localSigner = cobo_custody.LocalSigner{
		PrivateKey: "apiSecret",
	}

In some cases, your private key cannot be exported, for example, your private key is in aws kms, you should pass in your own implementation by implements ApiSigner interface

​
Initialize RestClient

import "github.com/CoboGlobal/cobo-go-api/cobo_custody"
var client = cobo_custody.Client{
  Signer:  localSigner,
  Env:     cobo_custody.Dev(),
}

​
Custodial Wallet Sample

import (
	"fmt"
	"github.com/CoboGlobal/cobo-go-api/cobo_custody"
)
apiSecret, apiKey := cobo_custody.GenerateKeyPair()
fmt.Println("API_SECRET:", apiSecret)
fmt.Println("API_KEY:", apiKey)

var localSigner = cobo_custody.LocalSigner{
  PrivateKey: apiSecret,
}

var client = cobo_custody.Client{
  Signer:  localSigner,
  Env:     cobo_custody.Dev(),
}

var res, error_msg = client.GetAccountInfo()
fmt.Println(res)
fmt.Println(error_msg)

​
MPC Wallet Sample

import (
	"fmt"
	"github.com/CoboGlobal/cobo-go-api/cobo_custody"
)
apiSecret, apiKey := cobo_custody.GenerateKeyPair()
fmt.Println("API_SECRET:", apiSecret)
fmt.Println("API_KEY:", apiKey)

var localSigner = cobo_custody.LocalSigner{
  PrivateKey: apiSecret,
}

var mpc_client = cobo_custody.MPCClient{
  Signer:  localSigner,
  Env:     cobo_custody.Dev(),
}

var res, error_msg = mpc_client.GetSupportedChains()
fmt.Println(res)
fmt.Println(error_msg)

​
Handling Response

import (
	"fmt"

	"github.com/CoboGlobal/cobo-go-api/cobo_custody"
)

var localSigner = cobo_custody.LocalSigner{
    PrivateKey: "your secret key",
}

var client = cobo_custody.Client{
    Signer: localSigner,
    Env:    cobo_custody.Dev(),
}

var res, error_msg = client.GetCoinInfo("BTC")
fmt.Println(res)

/* The response is a simplejson.Json object
   {map[abs_balance:0.0001 abs_estimate_fee:0.000948
        abs_estimate_fee_usd:35.28 balance:10000
        can_deposit:true
        can_withdraw:true
        coin:BTC confirming_threshold:4 decimal:8
        description:Bitcoin display_code:BTC
        dust_threshold:546 fee_coin:BTC
        minimum_deposit_threshold:10000
        require_memo:false token_address:]}
*/

// You can handle the response object as follows:
fmt.Println(res.Get("abs_balance"))
fmt.Println(res.Get("abs_estimate_fee"))

​
Handling API Errors

var client = cobo_custody.Client{
    Signer: localSigner,
    Env:    cobo_custody.Dev(),
}
var res, error_msg = client.GetCoinInfo("BTC")
fmt.Println(error_msg)

/* The error response is a cobo_custody.ApiError object.
" { 4b9be35a1c5d44f38ddf2b7e58fd3897 1006 Invalid api key,
  please use standard wallet api key }"
*/

// You can handle the response object as follows:
fmt.Println(error_msg.ErrorCode)
fmt.Println(error_msg.ErrorId)
fmt.Println(error_msg.ErrorMessage)
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