public class ifsccode_restapi {
public account AccBankDetails;
public string Client_id='xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';
public string Client_secret='xxxxxxxxxxxxxxxx';
public string Username='xxxxxxxxxxxxxxxx';
public string Passwordd='xxxxxxxxx';
public string getAccessToken(){
Http p=New Http();
string ReqBody='grant_type=password&';
ReqBody=ReqBody+'clientid'+Client_id+'&';
ReqBody=ReqBody+'clientsecret'+Client_secret+'&';
ReqBody=ReqBody+'username'+Username+'&';
ReqBody=ReqBody+'password'+Passwordd+'&';
HttpRequest Req=New HttpRequest();
Req.SetEndpoint('https://login.salesforce.com/services/oauth2/token');
Req.SetMethod('POST');
Req.SetBody(ReqBody);
HttpResponse Res=New HttpResponse();
Res=p.send(Req);
  AccessToken AT=New AccessToken();
        AT=(AccessToken)JSON.deserialize(Res.getBody(), AccessToken.class);
        return AT.access_token;
   
}
public class AccessToken {
public string access_token;
}
public void getBankDetails(string IFSCCode){
string sAccessToken=getAccessToken();
Http p=new Http();
HttpRequest Request=new HttpRequest();
Request.SetEndpoint('?ifsccode='+IFSCCode);
Request.SetMethod('GET');
Request.SetHeader('authorization','bearer'+sAccessToken);
HttpResponse Res=new HttpResponse();
Res=p.send(Request);
System.JSONParser parser = JSON.createParser(Res.getBody());
    System.debug('-------------Access Token -----------'+Res);
AccBankDetails=New account();
while(parser.nextToken()!=null){
if(parser.getText()=='Name'){
parser.nextToken();
AccBankDetails.Name=parser.getText();
}
if(parser.getText()=='Email__c'){
parser.nextToken();
AccBankDetails.Email__c = parser.getText();
}
if(parser.getText()=='Address__c'){
parser.nextToken();
AccBankDetails.Address__c=parser.getText();
}
if(parser.gettext()=='Anniversary_Date__c'){
parser.nextToken();
AccBankDetails.Anniversary_Date__c=parser.getText();
}
if(parser.gettext()=='Languages_Known__c'){
parser.nextToken();
AccBankDetails.Languages_Known__c=parser.getText();
}
if(parser.gettext()=='Mobile_Number__c'){
parser.nextToken();
AccBankDetails.Mobile_Number__c=parser.getText();
}
}
}
}