# DeviceAtlas Carrier Identification API # The DeviceAtlas Carrier Identification API provides a way to lookup Mobile Carrier properties based on an IPv4 IP address. Using the IP address for a Mobile Carrier the API will return properties such as _networkOperator_, _networkBrand_, _countryCode_, _mcc_ and _mnc_. ### Data File ### The Carrier API relies on a data file to function. DeviceAtlas provides weekly carrier data file updates. Please ensure you are using an up-to-date data file. The data file can be downloaded from your account page or in an automated way via the https://deviceatlas.com/getCarrierData page. ### Dependencies ### This library does not depend on any third party libraries. ### Library ### The DeviceAtlas Carrier Detection API consists of a single `carrier` package: #### CarrierApi (deviceatlas/carrier) #### The carrier package loads the Carrier data file, detects and returns the properties for a set of request headers or an IP address. ### Usage ### The API can be queried by passing any of the following to either the Detect() or the DetectV() functions. 1. An **IPv4** IP address string. _e.g. "62.40.34.220"_ 2. A **map** of HTTP Header names to HTTP Header values. The API will choose the most appropriate IP address to use. ### Choosing an IP Address ### If the API is passed a map of HTTP Headers it will try and choose the most suitable IP address for the end client. This is done by iterating over the following HTTP Headers. The first non-private, valid IP address is returned as the client IP. - X-Forwarded-For - Client-Ip - X-Client-Ip - rlnClientIpAddr - Proxy-Client-Ip - Wl-Proxy-Client-Ip - X-Forwarded - Forwarded-For - Forwarded The _X-Forwarded-For_ HTTP header can contain the client IP and multiple proxy IPs, the API parses the header to extract the client IP. ### Example ### The API has a very simple interface and can be used as follows: ```go import ( "deviceatlas/carrier" "fmt" ) ip := "62.40.34.220"; da := carrier.New() da.LoadDataFromFile("/path/to/sample.dat") // multiple calls will reload the data file each time // get all properties props := da.DetectV(ip); // .... use the properties .... if nop, ok := props["networkOperator"]; ok { fmt.Printf("networkOperator: %s", nop.(string)) } ``` ### Included Examples ### Please see the Examples directory for example code: * Command line example: ```bash cd Examples/carrier/cli/detect go run detect.go ``` * Web example: ```bash cd Examples/carrier/web go run carrier_web.go ``` And access `http://localhost:8280` from the browser. Note: Please download the latest version of the carrier data file and change the path to the downloaded carrier file in the example sources before running the examples. ### Master Carrier List ### For a listing of all Carrier names and associated data please see: https://deviceatlas.com/master-carrier-list The Carrier List is also available in CSV and XML formats. It can be downloaded from the above page or from the following download page using your Carrier Identification license key: https://deviceatlas.com/getMasterCarrierList - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _ Copyright (c) DeviceAtlas 2022. All Rights Reserved. _ https://deviceatlas.com <!-- HTML+JS for document formatting when opened in browser --> <div class="btn-group" id="main-menu" style="float:right"><a class="btn dropdown-toggle" data-toggle="dropdown" href="#">Menu<span class="caret"></span></a><ul class="dropdown-menu"><li><a href="README.html">Main</a></li><li><a href="README.DeviceApi.html">Building dependencies and API</a></li><li><a href="README.DeviceApi-Web.html">Device Detection for Web</a></li><li><a href="README.DeviceApi-Apps.html">Device Detection for Apps</a></li><li><a href="./ApiDocs/device.html">Device API Docs</a></li><li class="divider"></li><li><a href="README.DeviceApi-Config.html">Device Detection API Config</a></li><li><a href="README.Upgrade.html">Device Detection API Upgrade</a></li><li class="divider"></li><li class="disabled"><a href="README.CarrierApi.html">Carrier Identification API</a></li><li><a href="./ApiDocs/carrier.html">Carrier API Docs</a></li><li class="divider"></li><li><a href="README.CarrierApi-Config.html">Carrier Detection API Config</a></li></ul></div>