title: Shopify Customer Login issue by mobile buy SDK on ios
body: <p>I am developing a mobile app Builder on Shopify. But Shopify doesn't provide any store back API for <strong>customer Login</strong>. So I use mobile-buy-sdk for ios for customer login.</p>
  
  <p>(I have installed mobile-buy-sdk on ios app and try to get access token by GraphQL)</p>
  
  <p>In mobile-buy-sdk I am getting some problems while generating an access token. </p>
  
  <p>I am getting this error:</p>
  
  <p><strong>MobileBuySDK.Graph.QueryError.http(403)</strong></p>
  
  <pre><code>    let shopDomain = "mobile-app-velsof.myshopify.com"    
      let apiKey = "2d9bfef9c18942e1b7d132350c52651d"
      let emailSDK = "mbhaisora@velsof.com"
      let passwordSDK = "abc@123"
  
      let client = Graph.Client(shopDomain: shopDomain, apiKey: apiKey)
  
      let query = Storefront.buildQuery {
          $0.shop {
              $0.name()
          }
      }
  
  
      let task = client.queryGraphWith(query) { response, error in
          if let responseF = response {
              let name = responseF.shop.name
          } else {
              print("Query failed: \(error)")
          }
      }
      task.resume()
  </code></pre>
  
  <p>I didn't understand why I am getting this error. I have followed the same steps as mentioned in Shopify mobile-buy-sdk docs.</p>
  
  <p>Thanks in advance.</p>