(Xojo Plugin) Banco Inter OAuth2 Client Credentials

Generate an OAuth2 access token needed to consume the Inter APIs.

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://developers.bancointer.com.br/reference/token-3

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Dim success As Boolean
success = False

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim http As New Chilkat.Http

// First load the certificate and private key, and set as the HTTP object's client certificate.
Dim cert As New Chilkat.Cert
success = cert.LoadFromFile("<nome arquivo certificado>.crt")
If (success = False) Then
    System.DebugLog(cert.LastErrorText)
    Return
End If

Dim bdPrivKey As New Chilkat.BinData
success = bdPrivKey.LoadFile("<nome arquivo chave privada>.key")
If (success = False) Then
    System.DebugLog("Failed to load <nome")
    Return
End If

Dim privKey As New Chilkat.PrivateKey
success = privKey.LoadAnyFormat(bdPrivKey,"")
If (success = False) Then
    System.DebugLog(privKey.LastErrorText)
    Return
End If

success = cert.SetPrivateKey(privKey)
If (success = False) Then
    System.DebugLog(cert.LastErrorText)
    Return
End If

success = http.SetSslClientCert(cert)
If (success = False) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

Dim req As New Chilkat.HttpRequest
req.HttpVerb = "POST"
req.Path = "/oauth/v2/token"
req.ContentType = "application/x-www-form-urlencoded"
req.AddParam "grant_type","client_credentials"
// Requested scopes in OAuth2 are typically SPACE separated.
req.AddParam "scope","boleto-cobranca.read boleto-cobranca.write"
req.AddHeader "accept","application/json"

Dim resp As New Chilkat.HttpResponse
success = http.HttpReq("https://cdpj.partners.bancointer.com.br/oauth/v2/token",req,resp)
If (success = False) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

Dim jResp As New Chilkat.JsonObject
success = resp.GetBodyJson(jResp)
jResp.EmitCompact = False

System.DebugLog("Response Body:")
System.DebugLog(jResp.Emit())

Dim respStatusCode As Int32
respStatusCode = resp.StatusCode
System.DebugLog("Response Status Code = " + Str(respStatusCode))
If (respStatusCode >= 400) Then
    System.DebugLog("Response Header:")
    System.DebugLog(resp.Header)
    System.DebugLog("Failed.")
    Return
End If

success = jResp.WriteFile("qa_data/tokens/banco_inter_client_credentials.json")
If (success = False) Then
    System.DebugLog("Failed to save JSON access token file.")
    Return
End If

System.DebugLog("Success.")