Integrating Third Party APIs in a Spring Boot Application
Test APIs in Your Local Environment
Before integrating third-party APIs in your web application, it’s better to test the APIs with an API tool like Postman to ensure the APIs work properly in your local environment. It can also let you get familiar with the APIs.
Add API Configurations to Your Project
There are some common configurations of third-party APIs you need to add to your project. For example, authorization information (appId, appSecret), API URL prefix, and so on.
Add Configurations
Add the configurations to your spring boot configuration file application.yaml
:
thirdParty: |
Define the Configuration Bean
Add a spring bean to receive the configurations:
YourThirdPartyConfig.java
|
Access Your Configurations
Access the configurations by @Autowired
it
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String appId = yourThirdPartyConfig.appId; |
Write Code
Define the API Interfaces
Here we use the example of the social login API service to demonstrate.
public interface SocialLoginService { |
Why use JSONObject as parameters and return types of methods of the interface?
Different third-party API service platforms have different data structures. The parameters and return types of methods need to be extensible.
Define Constants
Keys for API parameters
public class Auth0Key { |
API request URIs
public class Auth0Url { |
Write the API Implementing Class
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Common third-party APIs and their class names
API Service | Interface Name | Implementation Name |
---|---|---|
Cloud Object Storage | COSService | AwsCOSService AzureCOSService |
Push Notification APIs | PushNotificationService | OneSignalPushService |
Social Media Login APIs | SocialLoginService | Auth0SocialLoginService FirebaseSocialLoginService |
Write Parameter Builders and Result Handlers
Parameter builders
public interface SocialLoginParamBuilder { |
|
Result handlers
public interface SocialLoginResultHandler { |
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Use Your Interface
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JSONObject params = auth0SocialLoginParamBuilder.getFunc1Param(entity); |