user60302: I have a test BitGo account, and there are test wallets. One of this wallet has 1.1000 TBTC (test btc). I want to send transaction uses BitGo API. 
I do this request:
http://localhost:3080/api/v2/tbtc/wallet/"my_wallet_id"/sendcoins
with this headers:
Content-Type application/json
Authorization Bearer "my_token"
and this body:
{
    "address":"address_where_i_send",
    "amount":0.1,
    "walletPassphrase":"my_test_passphrase"
}
and I get this response:
{
    "error": "sub-dust-threshold amount for 2N4ebmhA3FDuPiULXUEu1jBdPc3y2hk1NrD: 0.5",
    "message": "sub-dust-threshold amount for 2N4ebmhA3FDuPiULXUEu1jBdPc3y2hk1NrD: 0.5"
}

Can somebody explain why I have this response, and how fix it?
(I have V2 BTC wallet)
Thanks!

user15378: According to BitGo Documentation:

amount    number  Yes Amount to be sent (in Satoshis), e.g. 0.1 * 1e8 for
  a tenth of a Bitcoin

https://bitgo.github.io/bitgo-docs/#send-coins-to-address
So, the amount should be passed as 0.1 * 1e8 = 10000000

60302: <p>I have a test BitGo account, and there are test wallets. One of this wallet has 1.1000 TBTC (test btc). I want to send transaction uses BitGo API. </p>

<p><strong><em>I do this request:</em></strong></p>

<p><a href="http://localhost:3080/api/v2/tbtc/wallet/" rel="nofollow noreferrer">http://localhost:3080/api/v2/tbtc/wallet/</a>"my_wallet_id"/sendcoins</p>

<p>with this headers:
<code>Content-Type application/json
Authorization Bearer "my_token"</code></p>

<p>and this body:</p>

<p><code>{
    "address":"address_where_i_send",
    "amount":0.1,
    "walletPassphrase":"my_test_passphrase"
}</code></p>

<p>and I get <strong>this response</strong>:</p>

<p><code>{
    "error": "sub-dust-threshold amount for 2N4ebmhA3FDuPiULXUEu1jBdPc3y2hk1NrD: 0.5",
    "message": "sub-dust-threshold amount for 2N4ebmhA3FDuPiULXUEu1jBdPc3y2hk1NrD: 0.5"
}
</code>
<strong><em>Can somebody explain why I have this response, and how fix it?</em></strong>
(I have V2 BTC wallet)</p>

<p>Thanks!</p>
 15378: <p>According to BitGo Documentation:</p>

<blockquote>
  <p>amount    number  Yes Amount to be sent (in Satoshis), e.g. 0.1 * 1e8 for
  a tenth of a Bitcoin</p>
</blockquote>

<p><a href="https://bitgo.github.io/bitgo-docs/#send-coins-to-address" rel="nofollow noreferrer">https://bitgo.github.io/bitgo-docs/#send-coins-to-address</a></p>

<p>So, the amount should be passed as <code>0.1 * 1e8</code> = <code>10000000</code></p>
