CryptoCompareAPI

Swifty cryptocompare api client

☑ TODO

• Price API
• Other Info API
• Historical Data API
• Toplists API
• Steaming API
• News API

✏️Pod install

Add pod 'CryptoCompareAPI' to your Podfile. Run pod install

💡Example

let api = CryptoCompareAPI(applicationName: "MyApp")
    
// Retrieve all coins (actually this is not the whole coin list
// from cryptocompare API, but this endpoint is useful anyway
api.send(GetCoinListRequest()) {
  switch $0 {
  case .success(let coinList):
    // Process coinList here

  case .failure(let error):
    // Handle error state
    print(error.description)
  }
}

let request = GetSymbolsPriceRequest(fsyms: "BTC,ETH",
                                     tsyms: "USD",
                                     e: .binance)
    
api.send(request) {
  switch $0 {
  case .success(let prices):
    // Process prices here

  case .failure(let error):
    // Handle error state
    print(error.description)
  }
}

Sometimes the simple 'result' wrapper is not enough for hard async code, so you can write an extension like this and use the power of promises:

import Promises
import CryptoCompareAPI

extension CryptoCompareAPI {
  func send<T: APIRequest>(_ request: T) -> Promise<T.Response> {
    return Promise { fulfill, reject in
      self.send(request) {
        switch $0 {
        case .success(let value):
          fulfill(value)
          
        case .failure(let error):
          reject(error)
        }
      }
    }
  }
}

Sometimes it is useful to have URLSessionTask in control, e.g. to cancel long requests or resume them. For this case the send method returns a data task object.

let dataTask = api.send(request)
...
if userWantsToCancelUpdate {
  dataTask.cancel()
}

📝License

Copyright 2018 Eugene Velizhenkov

Licensed under the MIT License; you may not use this file except in compliance with the License. You may obtain a copy of the License at

https://opensource.org/licenses/MIT Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.