NowAPIService オブジェクトを初期化する方法を次に示します。

/**
 * Helper class used to handle different Now service instances. It has an application scope or is Singleton
 */
@Singleton
class SdkManager @Inject constructor() {

    private var nowApiService: NowAPIService? = null

    /**
     * Create the NowAPIService once in the lifetime of the application inside the Application class or another manager class
     * that will be injected into other classes via dagger/hilt.
     * NowAPIService should be created after initializing the NowSDK
     */
    suspend fun getNowApiService(): NowAPIService? {
        if (nowApiService != null) return nowApiService

        return NowDataSDK.makeAPIService(URL("https://instance-name.service-now.com")).getOrThrow()
            .also { this.nowApiService = it }
    }

}

NowAPIService オブジェクトが初期化されたら、NowAPIService data() メソッドを使用して、呼び出す REST エンドポイントとそれに関連するすべてのパラメーターを指定します。

 suspend fun makeNowApiCall() {
  val apiService = sdkManager.getNowApiService()

  val apiPath = "api/now/table/sn_customerservice_case"
  val endpoint = NowAPIService.Endpoint(HttpMethod.GET, apiPath, true)
  val fieldNames = "sys_id,number,short_description,number,priority,state," +
    "opened_at,account.name,account.number,contact.name,contact.email," +
    "contact_type,assignment_group.name,assigned_to.name"

  val queryParamsMap = mapOf("sysparm_fields" to fieldNames, "sysparm_limit" to "10")

  val queryParams = QueryParams.Builder().addAll(queryParamsMap).build()

  val response = runCatching {
    apiService?.data(endpoint = endpoint, queryParams = queryParams)?.execute()
  }

  if (response.isSuccess) {
    val resultString = response.getOrNull()?.body?.let { String(it) }
  } else {
    // Handle error
  }
}