Composer Interface

Composer is an HTTP request construction tool provided by Whistle. It can be used to quickly create, modify, and send custom requests. Its main purpose is to quickly edit captured data and simulate requests, meeting the needs of quickly locating interface issues during joint debugging.

Right-click the send button:

Component	Function
History Button	Show or hide history
Select Method	Select the request method, supporting various methods such as GET/POST/PUT
URL Input Box	Edit or input the request URL
Params	Add, modify, or delete request parameters
Send Button	Execute the current request
Send Body Via File	Load request content from a local file for sending large request content
Replay Times	Set the number of replays, up to 100 times
Show History	Show history, same function as the icon button on the left
Rules	Whether to enable the rules in the input box below
Whistle	Whether to enable the rules configured in Whistle
Pretty	Format and display content
Body	Whether to include the request body (methods like GET/HEAD/OPTIONS will automatically ignore the request body)
HTTP/2	Whether to use the HTTP/2 protocol
Import	Import request data
Export	Export request data
AsCURL	Generate executable cURL commands
Rule Input Box	Custom rules, only effective for the currently constructed request
Request Headers	Custom request headers
Request Content	Custom request content

Saving Request/Response Data

1. Automatically saved to Composer history when sending (up to 64 records saved)
2. Right-click the captured data in the packet capture list and click Save to save