introduction
Express logistics query has become an indispensable part of the modern logistics field. With the rapid development of e-commerce and the increase of global trade, it is becoming more and more important to track and query the logistics status of parcels accurately and in a timely manner. In this context, combining express logistics query and cross-border international logistics API to provide users with real-time and reliable logistics information has become an indispensable requirement. This article will discuss the implementation principle of express logistics query and how to integrate the cross-border international logistics API into the application.
Implementation principle of express logistics query
1. Data acquisition: express logistics query first needs to obtain relevant logistics data. These data are usually provided by courier companies or logistics service providers, and can be obtained through API interfaces, data files, or crawling web pages. The acquired data includes logistics status, transportation track, receipt information, etc.
2. Data storage: The acquired logistics data needs to be stored for subsequent query and access. Common data storage methods include databases (such as MySQL, MongoDB, etc.) or memory caches (such as Redis). Data storage can be structured, indexed, and partitioned as needed to improve query efficiency and data availability.
3. Recognition of logistics order number: Users usually need to provide logistics order number when making logistics inquiries, which is the key information for inquiries. In the logistics query system, it is necessary to identify and verify the logistics order number provided by the user to ensure the legitimacy and accuracy of the order number. This can be verified through regular expressions, algorithm verification, or calling the interface of the courier company.
4. Query interface: The logistics query system provides a query interface, so that users can perform query operations by inputting the logistics order number. The query interface can be implemented through HTTP or other communication protocols, and the user sends a query request by calling the interface, and passes parameters such as the logistics order number. After the interface receives the request, it will verify the logistics order number and retrieve the relevant logistics data from the data storage.
5. Data processing and matching: the query interface will process the logistics order number provided by the user and match the stored logistics data. This involves the application of matching algorithms and data indexing technology for logistics order numbers. According to the characteristics of the logistics tracking number and the rules of different express companies, the system can accurately match and extract the corresponding logistics data.
6. Data return and display: The query interface encapsulates the matched logistics data into a response and returns it to the user. The response data is usually returned in JSON, XML and other formats, including logistics status, transportation track, receipt information, etc. Users can display logistics information on web pages, mobile applications or other user interfaces by parsing the response data.
7. Exception handling and log recording: During the logistics query process, various abnormal situations may occur, such as logistics order number error, query timeout, etc. The query system needs to have an exception handling mechanism that can capture and handle exceptions and return corresponding error messages to users. At the same time, in order to monitor system performance and troubleshoot, it is necessary to record query logs, including request information, processing time, and exception information.
Integration of cross-border international logistics query API
1. Apply for an API key
Users need to register on the official website of the API provider and apply for an API key to obtain the permission to call the API interface.
Taking APISpace as an example, the steps to use the national express logistics API are usually as follows:
Enter the cross-border international logistics query API details page , click [Free Trial] or [Register] to get the API key.
After the registration is successful, we click [My API ] in the page navigation menu to enter the [Access Control ] page, and we can see the key provided by the platform.
2. Online test API
After clicking the free trial successfully, the system will automatically enter the API test interface, as shown in the figure below, we only need to fill in the courier company code and tracking number to get the complete courier logistics information
3. Use the code to access the API interface
After the interface test passes, you can access the code. The Java access code example is as follows:
OkHttpClient client = new OkHttpClient().newBuilder().build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{"cpCode":"","mailNo":""}");
Request request = new Request.Builder()
.url("https://eolink.o.apispace.com/internationallogistics/subscribe")
.method("POST",body)
.addHeader("X-APISpace-Token","")
.addHeader("Authorization-Type","apikey")
.addHeader("Content-Type","")
.build();
Response response = client.newCall(request).execute();
System.out.println(response.body().string());
4. The interface returns data to render the page
Click query on the page to return the express logistics information, get the data information, and render the page. At this point, the integration of the cross-border international logistics query API into the application is complete~
conclusion
As e-commerce and global trade continue to grow, the importance of express logistics inquiries will continue to increase. At the same time, the complexity of cross-border international logistics will continue to increase. By understanding the realization principle of express logistics query and integrating the cross-border international logistics API into the application, we can provide users with a better logistics experience and improve the visibility and controllability of logistics.