- During testing and development, it is sometimes necessary to modify the return status or return value of an interface.
- In Charles, the response of another interface can be returned to the original interface through remote mapping, so as to achieve the purpose of modifying the interface response.
- This function can also be switched between the official line domain name and the test line domain name.
Article directory
1. Principle
- The article before the column introduced the principle of Charles packet capture
[ Packet capture tool Charles (2) - mobile APP capture (set mobile phone agent, install certificate) ]
- Remote mapping means that after Charles captures the client's interface request, he changes the interface request address according to the configured mapping, and returns to the original interface request after obtaining the response.
2. Operation steps
(1), Add interface mapping
1. Single interface
- Select the target interface, right-click, and find "Map Remote"
2. Batch add
- Or under the "Tool" menu, find "Map Remote"
- After opening the remote mapping settings, check "Enable MapRemote", click "Add" to add interface mapping
(2), set the matching mapping interface
- After opening the interface mapping dialog box, you can see that the upper part is the interface URL information that matches the mapping.
- Charles will match specific URLs based on protocol, host, port, path, and query parameters.
- These settings support wildcards. For example, if the query parameter is configured as "*", all query parameters under this path will be matched.
(3), specify the target address of the mapping
- Like configuring the interface that needs to match, the second half sets the target interface of the mapping
- You can also set the protocol, host, port, path, query parameters,
- These settings support wildcards.
- The check box at the bottom of the pop-up box is to preserve the original host in the request header (Preserve host in header fields), which can be set as needed.
(4), example steps
- Take the interface of Charles official website as an example: through remote mapping, return other webpages to the official website address
- Configure remote mapping
- After the configuration is complete, refresh the page. It can be seen in Charles that a new address is requested, and it is also marked under the overview tab that this interface is requested by the remote mapping of the original interface.
- View the page and you can see that now requesting the address of the official website returns other websites
3. Note: Remember to turn off when not in use!
- Sometimes I encountered situations where the data did not match the actual expectations. After checking for a long time, the result was that I forgot to turn off the interface mapping [wry smile]
- Under the "Tools" menu, find "Map Remote"
- Uncheck "Enable Map Remote" and save it.
Appendix: Interface Functional Testing Series Tutorial Contents
Packet capture tool Charles (1) - download, install and set up
packet capture tool Charles (2) - mobile APP packet capture (set up mobile phone proxy, install certificate)
packet capture tool Charles (3) - tutorial interface introduction, basic functions ( Weak network, editing, retransmission)
Packet capture tool Charles (4) - Introduction to common functions (save, import and export, filter, sort)
Packet capture tool Charles (5) - Use local mapping to modify interface response content (Map local)
Packet capture Tool Charles (6) - use remote mapping to redirect interface requests (Map remote)
General Catalog-Zero-Basic Getting Started Interface Functional Testing Tutorial
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Charles installation package has been uploaded to I run a blog with the same name as the public account [Software Testing Essential Skills].
The public will also upload test-related materials from time to time, and they can go to collect them if necessary.
If necessary, click on the QR code at the bottom of the article to get it~