request_body Manipulates or sets restrictions on the bodies of incoming requests. Syntax request_body [<matcher>] { max_size <value> set <body_content> } max_size is the maximum size in bytes allowed for the request body. It accepts all size values supported by go-humanize. Reads of more bytes will return an error with HTTP status 413. ⚠️ Experimental | v2.10.0+ set allows setting the request body to specific content. The content can include placeholders to dynamically insert data. Examples Limit request body sizes to 10 megabytes: example.com { request_body { max_size 10MB } reverse_proxy localhost:8080 } Set the request body with a JSON structure containing a SQL query: example.com { handle /jazz { request_body { set `\{"statementText":"SELECT name, genre, debut_year FROM artists WHERE genre = 'Jazz'"}` } reverse_proxy localhost:8080 { header_up Content-Type application/json method POST rewrite * /execute-sql } } }