retrofit read value from headers kotlin site:stackoverflow.com

Step 1: Import the necessary libraries To read values from headers using Retrofit in Kotlin, you need to import the required libraries. These include the Retrofit and OkHttp libraries.

Step 2: Create an instance of Retrofit Next, you'll need to create an instance of the Retrofit class. This involves specifying the base URL of the API you're working with and configuring any additional settings such as converters or interceptors.

Step 3: Define the API interface In this step, you'll define an interface that represents the API endpoints you want to interact with. This interface will include methods for making GET or POST requests and will define the expected response type.

Step 4: Make the API request To make the API request and retrieve the headers, you'll need to call the appropriate method defined in the API interface. This method will return a response object that contains the headers and the response body.

Step 5: Access the headers Once you have the response object, you can access the headers by calling the headers() method on the response object. This method returns a Headers object that allows you to retrieve specific header values using their names.

Step 6: Retrieve the desired header value To retrieve the value of a specific header, you can use the get() method on the Headers object. This method takes the name of the header as a parameter and returns its corresponding value.

Step 7: Use the header value as desired Finally, you can use the retrieved header value in your application as needed. This could involve displaying it to the user, performing some logic based on its value, or storing it for future use.

Please note that the code examples and specific implementation details have been omitted as per your request. However, the general steps outlined above should guide you in reading values from headers using Retrofit in Kotlin.