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3scale is an API Infrastructure service which handles API Keys, Rate Limiting, Analytics, Billing Payments and Developer Management. Includes a configurable API dashboard and developer portal CMS. More product stuff at http://www.3scale.net/, support information at http://support.3scale.net/.

Plugin Versions

This is version 2.0.0 of the plugin, if you were using this plugin before October 1st 2013, you are using the old version 0.1.3 of it, but we strongly recommend you to port your code to this new version which contains more features.

Synopsis

This plugin supports the 3 main calls to the 3scale backend:

  • authrep grants access to your API and reports the traffic on it in one call.
  • authorize grants access to your API.
  • report reports traffic on your API.

3scale supports 3 authentication modes: App Id, User Key and OAuth. The first two are similar on their calls to the backend, they support authrep. OAuth differs in its usage two calls are required: first authorize then report.

Install

  1. Obtain the library: CS_threescale.dll (Windows version). It is highly suggested to rebuild the dll from the source using Mono or Microsoft Visual Studio
  2. 3scale library depends on:
using System;
using System.Collections.Generic;
using System.Text;
using System.Net

Usage on App Id auth mode

On App Id mode you call authrep to: grant access to your API, and also report the traffic on it at the same time.

// import the 3scale library into your code
using CS_threescale;

// ... somewhere inside your code

// create the API object
IApi _3ScaleAPI = new Api("your_provider_key");

// build a hashtable of parameters
Hashtable parameters = new Hashtable();

parameters.Add("app_id", "your_app_id_");
// You can also add the app_key if required...
// parameters.Add("app_key", "your_app_key");
// ...and the service id
// parameters.Add("service_id", "your_application_service_id");

//Add a metric to the call
Hashtable usage = new Hashtable();
usage.Add("hits", "1");
parameters.Add("usage",usage);

try
{
    // The preferred way of calling the backend: authrep
    // The response will be the object AuthorizeResponse or an exception    
    AuthorizeResponse resp = _3ScaleAPI.authrep(parameters);
}
catch (ApiException e)
{
    Console.WriteLine("Exception: " + e.ToString());
}

The object AuthorizeReponse can be printed with this function:

static void print(AuthorizeResponse resp) 
{
    if (resp.authorized) 
    {
        Console.WriteLine("Authorized!!");
    }
    else 
    {
        Console.WriteLine("NOT Authorized!!" + resp.reason);
    }

	Console.WriteLine("PLAN: " + resp.plan);

    int i=0;
    foreach( UsageItem item in resp.usages)
    {
        Console.WriteLine("Usage: " + i);
        Console.WriteLine("     Metric:     " + item.metric);
        Console.WriteLine("     Period:     " + item.period);
        Console.WriteLine("     CurrValue:  " + item.current_value);
        Console.WriteLine("     MaxValue:   " + item.max_value);
        Console.WriteLine("     PeriodStart:" + item.period_start);
        Console.WriteLine("     PeriodEnd:  " + item.period_start);
        i++;
    }
}

You can also call report to report traffic on your API:

// Create a Hashtable containing a list of transactions to be reported on, e.g:
System.Collections.Hashtable transactions = new System.Collections.Hashtable();
System.Collections.Hashtable transaction = null;
System.Collections.Hashtable usage = null;

// create a transaction 
transaction = new System.Collections.Hashtable();

// Add the app_id:
string app_id = "your_app_id";
transaction.Add("app_id",app_id);

// Timestamp is optional, if left undefined it will take the current time. If defined
// it must have the format "yyyy-MM-dd HH:mm:ss K"
// transaction.Add("timestamp", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss K"));

// Usage is a Hashtable that contains the metrics to be reported
usage = new System.Collections.Hashtable();
usage.Add("hits", 10);
transaction.Add("usage",usage);

// Adding the transaction to transactions
transactions.Add("0", transaction);

// You can create a second transaction and have both be reported in a single _3ScaleAPI.report()
transaction = new System.Collections.Hashtable();
transaction.Add("app_id", app_id);
transaction.Add("timestamp", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss K"));
usage = new System.Collections.Hashtable();
usage.Add("hits", 1);
transaction.Add("usage", usage);
transactions.Add("1", transaction);

// Call report on the backend with the list of transactions to be reported on
_3ScaleAPI.report(transactions);

Usage on API Key auth mode

On API Key mode you call authrep to: grant access to your API, and also report the traffic on it at the same time.

// import the 3scale library into your code
using CS_threescale;

// ... somewhere inside your code

// create the API object
IApi _3ScaleAPI = new Api("your_provider_key");

// build a hashtable of parameters
Hashtable parameters = new Hashtable();

parameters.Add("user_key", "your_user_key");
// parameters.Add("service_id", "your_user_key_service_id");

// Add a metric to the call
Hashtable usage = new Hashtable();
usage.Add("hits", "1");
parameters.Add("usage",usage);

try
{
    // The preferred way of calling the backend: authrep
    // The response will be the object AuthorizeResponse or an exception    
    AuthorizeResponse resp = _3ScaleAPI.authrep(parameters);
}
catch (ApiException e)
{
    Console.WriteLine("Exception: " + e.ToString());
}

The object AuthorizeReponse can be printed with this function:

static void print(AuthorizeResponse resp) 
{
    if (resp.authorized) 
    {
        Console.WriteLine("Authorized!!");
    }
    else 
    {
        Console.WriteLine("NOT Authorized!!" + resp.reason);
    }

    Console.WriteLine("PLAN: " + resp.plan);

    int i=0;
    foreach( UsageItem item in resp.usages)
    {
        Console.WriteLine("Usage: " + i);
        Console.WriteLine("     Metric:     " + item.metric);
        Console.WriteLine("     Period:     " + item.period);
        Console.WriteLine("     CurrValue:  " + item.current_value);
        Console.WriteLine("     MaxValue:   " + item.max_value);
        Console.WriteLine("     PeriodStart:" + item.period_start);
        Console.WriteLine("     PeriodEnd:  " + item.period_start);
        i++;
    }
}

You can also call report to report traffic on your API:

// Create a Hashtable containing a list of transactions to be reported on, e.g:
System.Collections.Hashtable transactions = new System.Collections.Hashtable();
System.Collections.Hashtable transaction = null;
System.Collections.Hashtable usage = null;

// create a transaction
transaction = new System.Collections.Hashtable();

// Add the user key
string user_key = "your_user_key";
transaction.Add("user_key",user_key);

// Timestamp is optional, if left undefined it will take the current time. If defined
// it must have the format "yyyy-MM-dd HH:mm:ss K"
// transaction.Add("timestamp", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss K"));

// Usage is a Hashtable that contains the metrics to be reported
usage = new System.Collections.Hashtable();
usage.Add("hits", 10);
transaction.Add("usage",usage);

// Adding the transaction to transactions
transactions.Add("0", transaction);


// You can create a second transaction and have both be reported in a single _3ScaleAPI.report()
transaction = new System.Collections.Hashtable();
transaction.Add("user_key", user_key);
transaction.Add("timestamp", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss K"));
usage = new System.Collections.Hashtable();
usage.Add("hits", 1);
transaction.Add("usage", usage);
transactions.Add("1", transaction);

// Call report on the backend with the list of transactions to be reported on
_3ScaleAPI.report(transactions);

Usage on OAuth auth mode

On OAuth you have to make two calls, first authorize to grant naccess to your API and then report the traffic on it.

// import the 3scale library into your code
using CS_threescale;

// ... somewhere inside your code

// create the API object
IApi _3ScaleAPI = new Api("your_provider_key");

// build a hashtable of parameters
Hashtable parameters = new Hashtable();

parameters.Add("app_id", "your_oauth_app_id");
// You can also add the service id
// parameters.Add("service_id", "your_oauth_service_id");

//Add a metric to the call
Hashtable usage = new Hashtable();
usage.Add("hits", "1");
parameters.Add("usage",usage);

try
{
    AuthorizeResponse resp = _3ScaleAPI.oauth_authorize(parameters);
	
	if(resp.authorized)
	{
		// you can get the client secret like so
		string clientsecret = resp.GetClientSecret();
		
		//  now do a report
		Hashtable transaction = new Hashtable();
		transaction.Add("app_id", "your_oauth_app_id");
		
		Hashtable transaction_usage = new Hashtable();
		transaction_usage.Add("hits","1");
		transaction.Add("usage", transaction_usage);
		
		try
		{
			// Call report on the backend with the list of transactions to be reported on
			_3ScaleAPI.report(transaction);
		}
		catch(ApiException e)
		{
			Console.WriteLine("Exception on report:" + e.ToString());
		}
	}
}
catch (ApiException e)
{
    Console.WriteLine("Exception: " + e.ToString());
}

To test

To test the plugin with your real data:

  • Open up the ConsoleDemo project
  • Edit Main function in Program with your provider key and app id (or user_key if you are using that instead.)
  • Run Program.cs

Legal

Copyright (c) 2008 3scale networks S.L., released under the MIT license.