After Charles is started, when an HTTP request passes through Charles, you can view the request in the home screen of Charles, as shown in the following figure: Configure the proxy on the client You can click Allow to grant the permission. When Charles is started for the first time, the permission to set the system proxy is requested. Then, you can run the installation package to install Charles in the system. You can download the DMG installation package of Charles from the official website of Charles. This tool helps developers troubleshoot various problems and locate and resolve problems. Charles is an important tool for parsing HTTP messages in the macOS. This topic describes how Charles works, how to install and configure Charles, and how to configure HTTPS message decryption. Only the content that is encrypted offline can be displayed. The original content of this part of data cannot be decrypted by Charles or Fiddler. In practice, developers may encrypt the data offline, for example, by using the data encryption feature of Mobile Gateway Service (MGS), and then exchange data over HTTPS. This ensures that HTTPS messages can be parsed, the information forwarded by the intermediate proxy is trusted by the client, and the messages are decrypted.Ĭharles and Fiddler can decrypt and display HTTPS messages only. The proxy can capture and parse all HTTP messages that pass through the proxy.Ĭonfigure the CA Root certificate of Charles or Fiddler on the client in advance. The two tools work in a similar way:ĭeploy a local HTTP proxy. Tools for capturing HTTP messagesĬharles and Fiddler are common tools for capturing HTTP messages. This helps you locate the root cause of the issue. For example, when you find that a request error occurs, you can analyze the request message and the response message to check whether the request information is invalid, whether the server returns valid responses, and whether the returned values are as expected.

In particular, when an error is about the interaction between the client and the server or gateway, you can capture HTTP messages to help understand and troubleshoot the error. In the process of developing mobile app projects based on the mPaaS framework, various errors occur. Alibaba Cloud does not make any guarantee, express or implied, with respect to the performance and reliability of third-party products and potential impacts of operations on the products.

Disclaimer: This topic may contain information about third-party products.

Charles settings download