What should you pay attention to when developing php interfaces?

1. Establish specifications

Be sure to set a specification before development, such as the general parameters and format for data return. Regarding data formats, the most commonly used ones are xml and json. I recommend using json because json has more benefits than xml.

2. Streamlined return data

The interface data conforms to the principle of returning what is needed. For example, if you want to query the balance and registration time of a user, the interface data in the web page The approach may be select * from user where uid=1, but the interface must be select balance,regtime from user where uid=1. Because returning data through the interface requires overhead and traffic, if you can return as little data as possible, return as little data as possible, which can greatly improve performance.

3. The data type must be strict

Pay attention to the type of data. Integer type data must be converted to int, because the java and object- The C language is strict about data types. If the types are incorrect, the app will crash.

4. To write interface documents

Be sure to write interface documents well and according to the module, and also write specifications. The best format is: interface request Address; request parameters (including parameter name, type, and whether required); test parameter examples; return parameters (parameter name, and indicate the meaning of each parameter). In this way, even if the project is large in the future, it will not cause difficult maintenance problems.

5. Ensure the correctness of the code

It is necessary to verify that the code is correct, and errors must be shielded in the generation environment to avoid additional output in the header. The returned json and other data failed to parse, causing the app to crash.

6. To optimize the performance of the code

The app requires quick response, so as to give users a better experience. Therefore, when the mobile interface handles business logic, it is necessary to avoid executing SQL statements that are too complex, or contain a large number of loops, and cache as much as possible. For example, the hotspot module information on the homepage can be stored in the redis cache. Without considering network speed, the ideal interface response time should be within 200 milliseconds.

7. Don’t change the old interface at will

Apps are not like web pages. Once the app is released and someone uses it, the interface should not be modified randomly. The same applies to future upgrades. Modifications must make additional extensions while ensuring the original structure of the interface, otherwise it will cause bugs in apps that call the old version of the interface.

8. Pay attention to the security of the interface

Security is above all else, and the security of the interface must be ensured. Sensitive information such as phone numbers must be encrypted during transmission, otherwise it may be captured by others. The interface for obtaining user information must verify the permissions to prevent the interface from being maliciously called, leaking user information, or even tampering with the information.

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