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Access Route4Me's logistics-as-a-service API using our C++ SDK

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Access Route4Me's logistics-as-a-service API using our C++ SDK

Build Status

What does Route4Me do?

In layman's terms Route4Me solves complex variations of the traveling salesman problem and the vehicle routing problem. In more technical terms, Route4Me solves HP-hard logistics problems that span several mathematical and scientific disciplines such as industrial engineering, operations research, algorithmic graph theory, computational geometry, combinatorial optimization, fleet management, field service management, telematics.

What does the Route4Me SDK permit me to do?

This SDK makes it easier for you use the Route4Me API. The API has many features, including route optimization, and the primary features are related to creating orders and then creating optimally sequenced driving routes for many drivers.

Who can use the Route4Me SDK (and API)?

The service is typically used by organizations who must route many drivers to many destinations. In addition to route optimization for new (future) routes, the API can also be used to analyze historical routes, and to distribute routes to field personnel.

Who is prohibited from using the Route4Me SDK (and API)?

The Route4Me SDK and API cannot be resold or used in a product or system that competes directly with Route4Me. This means that developers cannot resell route optimization services to other businesses or developers. However, developers can integrate our route optimization SDK/API into their software applications. Developers and startups are also permitted to use our software for internal purposes (i.e. a same day delivery startup).

How does the API/SDK Integration Work?

A Route4Me customer, integrator, or partner incorporates the Route4Me SDK or API into their code base. Route4Me permits any paying subscriber to interact with every part of its system using it’s API. The API is RESTful, which means that it’s web based and can be accessed by other programs and machines The API/SDK should be used to automate the route planning process, or to generate many routes with minimal manual intervention

Do optimized routes automatically appear inside my Route4Me account?

Every Route4Me SDK instance needs a unique API key. The API key can be retrieved inside your Route4Me.com account, inside the Settings tab called API. When a route is planned, it appears inside the corresponding Route4Me account. Because Route4Me web and mobile accounts are synchronized, the routes will appear in both environments at the same time.

Can I test the SDK with other addresses without a valid API Key?

No. The sample API key only permits you to optimize routes with the sample address coordinates that are part of this SDK.

Does the SDK have rate limits?

The number of requests you can make per second is limited by your current subscription plan. Typically, there are different rate limits for these core features: Address Geocoding & Address Reverse Geocoding Route Optimization & Management Viewing a Route

What is the recommended integration architecture for the Route4Me SDK?

There are two typical integration strategies that we recommend. Using this SDK, you can make optimization requests and then the SDK polls the Route4Me API to detect state changes as the optimization progresses. Alternatively, you can provide a webhook/callback url, and the API will notify that callback URL every time there is a state change.

I don't need route management or mobile capabilities. Can I just use the route planning and route optimization API?

There are no additional costs to use the web interface or the mobile application to view your optimized routes, which mean that you can use only the API without paying extra for our web app or mobile app.

How fast is the route Route4Me Optimization Web Service?

Most routes having less than 200 destinations are optimized in 1 second or less. Larger routes having thousands of stops are split into their most reasonably optimal geographical regions, and then each of those regions is independently optimized in parallel. Whether you use polling or push, you will be able to retrieve all the routes optimized that were created from a large optimization problem set.

Can I disable optimization when planning routes?

Yes. You can send routes with optimization disabled if you want to conveniently see them on a map, or distribute them to your drivers in the order you prefer.

Can the API be used for aerial vehicles such as drones or self-driving cars?

Yes. The API can accept lat/lng and an unlimited amount metadata per destination (e.g. altitude, weight, pieces, cubic dimension). The metadata will be preserved as passthrough data by our API, so that the receiving service or device will have access to critical data when our API invokes a webhook callback to the device.

Are all my optimized routes stored permanently stored in the Route4Me database?

Yes. Unless your contract specificies otherwise, all routes are permanently stored in the database and are no longer accessible to you after your subscription is terminated. Route4Me auto-prunes route data based on your subscription plan, with more expensive plans typically permitting a longer archival period.

Can I incorporate your API into my mobile application that requires routing, navigation, or route planning?

Route4Me's route planning and optimization technology can only be added into applications that do not directly compete with Route4Me. This means the application’s primary capabilities must be unrelated to route optimization, route planning, or navigation.

Can I pay you to develop a custom algorithm?

Yes

Can I use your API and resell it to my customers?

White-labeling and private-labeling Route4Me is possible but the deal's licensing terms vary considerably based on customer count, route count, and the level of support that Route4Me should provide to your customers.

Does the API/SDK have TMS or EDI, or EDI translator capabilities?

Yes

Can the API/SDK send notifications back to our system using callbacks, notifications, pushes, or webhooks?

Because Route4Me processes all routes asynchronously, Route4Me will immediately notify the endpoint you specify as a route optimization job progresses through each state of the optimization. Every stage of the route optimization process has a unique stage id.

Does the Route4Me API and SDK work in my country?

Route4Me.com, as well as all of Route4Me’s mobile applications use the Route4Me SDK’s and API. Since Route4Me works globally, this means that all of Route4Me’s capabilities are available using the SDK’s in almost every country that has well digitized maps.

Will the Route4Me API/SDK work in my program on Linux/*Nix/Kubernetes/Docker, Windows, Mac?

Customers are encouraged to select their preferred operating system environment. The Route4Me API/SDK will function on any operating system that supports the preferred programming language of the customer. At this point in time, almost every supported SDK can run on any operating system.

Does the Route4Me API/SDK require me to buy my own servers?

Route4Me has its own computing infrastructure that you can access using the API and SDKs. Customers typically have to run the SDK code on their own computers and/or servers to access this infrastructure.

Does Route4Me have an on-premise solution?

Route4Me does not currently lease or sell servers, and does not have on-premise appliance solution. This would only be possible in exceptionally unique scenarios.

Does the Route4Me API/SDK require me to have my own programmers?

The time required to integrate the SDK can be as little as 1 hour or may take several weeks, depending on the number of features being incorporated into the customer’s application and how much integration testing will be done by the client. A programmer’s involvement is almost always required to use Route4Me’s technology when accessing it through the API.

Installation and Usage

Pre-requisites

Route4Me API C++ client depends on libcurl library, needed for client-side URL transfers. Before you can build the source, you need to install libcurl, e.g.: for Ubuntu it would be advisable to update your repositories and then proceed with

sudo apt-get install libcurl4-openssl-dev

If you want to know a bit more about libcurl, you should go on the official website and read about interfaces that cURL implements: http://curl.haxx.se/

Route4Me API C++ client uses jsoncpp library to manipulate with JSON; all needed source files are already inserted into the project of Route4Me API C++ client, and no additional actions are expected from the user.

Build

To build Route4me API C++ client as a standalone library

cd build
cmake ..
make

This will create a library in lib/ and build examples from test/

Then add <Route4Me API C++ root>/lib/ to your library path and <Route4Me API C++ root>/include/ to your include path.

When linking, link against route4me (e.g.: g++ example.cpp -o example -lroute4me).

Route4Me API C++ client comprises 2 core files:

  • src/route4me.cpp - api calls/wrappers
  • include/route4me.h - defines and class interfaces

and additional source files test/*.cpp containing exhaustive samples for each section of Route4Me API:

Creating a Simple Route

    // global init
    CRoute4Me::init(); // need this to use libcurl global init
    // create an api wrapper object
    CRoute4Me route("11111111111111111111111111111111");
    // define a problem that we are to solve
    Json::Value params(Json::objectValue);
    params["route_name"] = "Single Driver Round Trip";
    params["algorithm_type"] = CRoute4Me::TSP;
    params["remote_ip"] = 0;
    params["member_id"] = 1;
    params["route_time"] = 0;
    params["route_max_duration"] = 86400;
    params["optimize"] = "Distance";
    params["distance_unit"] = "mi";
    params["travel_mode"] = "Driving";
    params["store_route"] = 1;
    params["device_type"] = "web";
    params["vehicle_capacity"] = 1;
    params["vehicle_max_distance_mi"] = 10000;
    params["directions"] = 1;
    // read addresses from a json file
    Json::Value addr;
    ifstream inf("addr.json");
    inf >> addr;
    // query to solve the optimization problem, defined in params
    if(route.run_optimization(addr, params) == 0)
    {
        // use Json::StyledWriter instead of Json::FastWriter for a human friendly output
        cout << "Single driver round trip:" << endl << Json::FastWriter().write(route.get_json_resp()) << endl;
    }
    else
    {
        // there is an error code and an error message in a human friendly format
        cout << "Err: " << route.get_err_code() << ": " << route.get_err_msg() << endl;
    }
    // global cleanup
    CRoute4Me::cleanup(); // need this to use libcurl global cleanup

Receive status of the pending optimization problems

    const char *KEY = "11111111111111111111111111111111";
    // global init
    CRoute4Me::init();
    // create an api wrapper object
    CRoute4Me route(KEY);
    if(route.get_route_q() == 0)
    {
        Json::Value opt_lst = route.get_json_resp()["optimizations"];
        if(opt_lst.isArray())
        {
            std::cout << "Key = " << KEY << "; Optimization problems are:" << endl;
            for(unsigned i = 0; i < opt_lst.size(); i++)
            {
                string id = opt_lst[i]["optimization_problem_id"].asString();
                int state = opt_lst[i]["state"].asInt();
                cout << "    " << id << " in state " << state << endl;
            }
        }
    }
    else
    {
        cout << "Err: " << route.get_err_code() << ": " << route.get_err_msg() << endl;
    }
    // global cleanup
    CRoute4Me::cleanup();

More examples

Please see test/*.cpp for more examples, which are to demonstrate examples of Route & GPS calls and some optimization problems (single driver, round trip, multiple driver, time window, re-optimization).

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See other interesting video tutorials about Different Types of Routes here