POST /0.2/link_account HTTP/1.1
Host: sandbox.silamoney.com
authsignature: [GENERATED AUTHSIGNATURE HEX STRING HERE]
usersignature: [GENERATED USERSIGNATURE HEX STRING HERE]
Content-Type: application/json

{
  "header": {
    "created": 1234567890, 
    "auth_handle": "handle.silamoney.eth", 
    "user_handle":"user.silamoney.eth", 
    "version": "0.2", 
    "crypto": "ETH", 
    "reference": "ref"
  }, 
  "message": "link_account_msg",
  "public_token": "public-xxx-xxx",
  "account_name": "Custom Account Name",
  "selected_account_id": "optional_selected_account_id"
}

***

HTTP/1.1 200 OK

{
  "success": true,
  "status": "SUCCESS",
  "reference": "ref",
  "message": "Bank account successfully linked.",
  "account_name: "Custom Account Name",
  "match_score": 0.825,
}

***
***

POST /0.2/link_account HTTP/1.1
Host: sandbox.silamoney.com
authsignature: [GENERATED AUTHSIGNATURE HEX STRING HERE]
usersignature: [GENERATED USERSIGNATURE HEX STRING HERE]
Content-Type: application/json

{
  "header": {
    "created": 1234567890, 
    "auth_handle": "handle.silamoney.eth", 
    "user_handle":"user.silamoney.eth", 
    "version": "0.2", 
    "crypto": "ETH", 
    "reference": "ref"
  }, 
  "message": "link_account_msg",
  "account_number": "123456789012",
  "routing_number": "123456789",
  "account_type": "CHECKING",
  "account_name": "Custom Account Name",
}

***

HTTP/1.1 200 OK

{
  "success": true,
  "status": "SUCCESS",
  "reference": "ref",
  "message": "Bank account successfully linked.",
  "account_name: "Custom Account Name",
  "match_score": null,
}

// Plaid verification flow (recomended)
const res = await Sila.linkAccount(
  userHandle,
  walletPrivateKey,
  token,
  accountName,
  accountId,
); // Account Name and Account Id parameters are not required


//Public token received in the /link/item/create plaid endpoint.

// Direct account-linking flow (restricted by use-case, contact Sila for approval)
const res = await Sila.linkAccountDirect(
  userHandle,
  walletPrivateKey,
  accountNumber,
  routingNumber,
  accountName,
  accountType,
); // Account Type and Account Name parameters are not required

//The only permitted account type is "CHECKING"

// Success Response Object
console.log(res.statusCode); // 200
console.log(res.data.reference); // Random reference number
console.log(res.data.status); // SUCCESS
console.log(res.data.message); // Bank account successfully linked

### Link Account with Plaid
payload = {
    "public_token": "public-development-0dc5f214-56a2-4b69-8968-f27202477d3f",  # Required token from plaid
    "user_handle": "user.silamoney.eth"                                         # Required
    "account_name": "Custom Account Name"                                       # Optional (default value is "default")
}

User.linkAccount(silaApp, payload, user_private_key, plaid=True)

### Link Account with Direct Account Linking
payload={
            "user_handle": "user.silamoney.eth",    # Required
            "account_number": "123456789012",       # Required
            "routing_number": "123456789",          # Required
            "account_type": "CHECKING",             # Optional (default value is CHECKING)
            "account_name": "Custom Account Name"   # Optional (default value is "default")
        }

User.linkAccount(silaApp,payload,user_private_key)

### Success Response Object
{
    status: 'SUCCESS'
}

### Failure Response Object
{
    status: 'FAILURE'
}

ApiResponse response = api.LinkAccount(userHandle, accountName, publicToken, userPrivateKey); 

***Public token received in the /link/item/create plaid endpoint.***

##### Success Response Object

System.out.println(response.getStatusCode()); // 200
LinkAccountResponse parsedResponse = (LinkAccountResponse) response.getData();
System.out.println(parsedResponse.getStatus()); // SUCCESS
System.out.println(parsedResponse.getReference()); // Reference number
System.out.println(parsedResponse.getMessage()); // Successfully linked
System.out.println(parsedResponse.getAccountName()); // Your desired account name
System.out.println(parsedResponse.getMatchScore()); // Match score

//**Public token received in the /link/item/create endpoint: https://plaid.com/docs/#integrating-with-link **

// SANDBOX ONLY: You can generate a testing public token instead of using the Plaid Link plugin with:
$client = new \GuzzleHttp\Client(["base_uri" => "https://sandbox.plaid.com"]);
$options = [
    'json' => [
        "public_key" => "fa9dd19eb40982275785b09760ab79",
        "initial_products" => ["transactions"],
        "institution_id" => "ins_109508",
        "credentials" => [
            "username" => "user_good",
            "password" => "pass_good"
        ]
    ]
];
$response = $client->post('/link/item/create', $options);
$content = json_decode($response->getBody()->getContents());
$public_token = $content->public_token;             // Public Token to pass to linkAccount()
$account_id = $content->accounts[0]->account_id;    // Optional Account ID to pass to linkAccount()

####
//**IMPORTANT!** If you do not specify an `$account_id` in `linkAccount()`, the first account returned by Plaid will be linked by default.
####

## Plaid token flow
// Load your information
$userHandle = 'user.silamoney.eth';
$accountName = 'Custom Account Name';   // Defaults to 'default'
$publicToken = 'public-xxx-xxx';        // A temporary token returned from the Plaid Link plugin. See above for testing.
$accountId = 'string';                  // Recommended but not required. See note above.
$userPrivateKey = 'some private key';   // The private key used to register the specified user

// Call the api
$response = $client->linkAccount($userHandle, $userPrivateKey, $publicToken, $accountName, $accountId);

## Direct Link account
// Load your information
$userHandle = 'user.silamoney.eth';
$accountName = 'Custom Account Name';   // Defaults to 'default' if not provided. (not required)
$routingNumber = '123456789';           // The routing number. 
$accountNumber = '123456789012';        // The bank account number
$userPrivateKey = 'some private key';   // The private key used to register the specified user
$accountType = 'CHECKING';              // The account type (not required). Only available value is CHECKING

// Call the api
$response = $client->linkAccountDirect($userHandle, $userPrivateKey, $accountNumber, $routingNumber, $accountName, $accountType);

### Success 200
echo $response->getStatusCode();        // 200
echo $response->getData()->getStatus(); // SUCCESS

// Public token received in the /link/item/create plaid endpoint.

ApiResponse<object> response = api.LinkAccount(userHandle, publicToken, walletPrivateKey, accountName, accountId); // Account Name and Account Id parameters are not required

// Direct account-linking flow (restricted by use-case, contact Sila for approval)

ApiResponse<object> response = api.LinkAccountDirect(userHandle, walletPrivateKey, accountNumber, routingNumber, accountType, accountName); // Account Type and Account Name parameters are not required 

// The only permitted account type is "CHECKING"

// Success Response Object

```csharp
Console.WriteLine(response.StatusCode); // 200
Console.WriteLine(((LinkAccountResponse)response.Data).Reference); // Random reference number
Console.WriteLine(((LinkAccountResponse)response.Data).Status); // SUCCESS
Console.WriteLine(((LinkAccountResponse)response.Data).Message); // Bank account successfully linked.
Console.WriteLine(((LinkAccountResponse)response.Data).AccountName); // Account Name.
Console.WriteLine(((LinkAccountResponse)response.Data).MatchScore);