scribejava-core/src/main/java/com/github/scribejava/core/builder/ServiceBuilder.java
/**
     * Configures the api key
     *
     * @param apiKey The api key for your application
     * @return the {@link ServiceBuilder} instance for method chaining
     */
Configures the api key
@param apiKey The api key for your application
@return the  ServiceBuilder instance for method chaining
Configures the api key @param apiKey The api key for your application @return the ServiceBuilder instance for method chaining
public final ServiceBuilder apiKey(String apiKey) {
        Preconditions.checkEmptyString(apiKey, "Invalid Api key");
        this.apiKey = apiKey;
        return this;
    }
public final ServiceBuilder apiKey ( String apiKey ) { Preconditions . checkEmptyString ( apiKey , "Invalid Api key" ) ; this . apiKey = apiKey ; return this ; }
Configures the api key
 @param apiKey The api key for your application
 @return the {@link ServiceBuilder} instance for method chaining
Configures the api key @param apiKey The api key for your application @return the { @link ServiceBuilder } instance for method chaining