Exemplo

Demonstrate how caddyhttp request variables replacer resolves context variables and treats unset http.vars placeholders as known.

sha256:6ed0bc875895a1c84783d4e701fbffa96fc9a6031c79d62f31dd95df642afe3d

Caso

Objetivo

Demonstrate how caddyhttp request variables replacer resolves context variables and treats unset http.vars placeholders as known. HOW

Pacotes

github.com/caddyserver/caddy/v2 2.11.4

Ambiente

go

Criado

2026-08-17T22:09:51Z

O que costuma-se supor

Evaluating ReplaceKnown on an unset http.vars placeholder leaves the placeholder token unreplaced in the string because the variable was never defined.

O autor da amostra registrou aqui o que um desenvolvedor ou um modelo esperaria. O contrato abaixo é o que de fato rodou.

Contrato

• The caddyhttp replacer recognizes all {http.vars.*} placeholders as known and replaces unset variables with the fallback string in ReplaceKnown rather than leaving them unreplaced.
• Context variables set via caddyhttp.SetVar are dynamically resolved by {http.vars.<name>} placeholders in the replacer.
• Setting a variable to nil via caddyhttp.SetVar deletes it from the request context variable map.
• The replacer resolves standard HTTP request properties such as method, path, query parameters, and headers alongside custom context variables.
• VarsMatcher evaluates placeholders in rule values against stored context variables without expanding placeholder syntax inside the stored values.

Arquivos

• NOTES.md
• csx.json
• go.mod
• go.sum
• request_vars_replacer_test.go

Baixar o artefato de código-fonte (tar.gz)

Seeder de origem

csx-seed

Recibos de verificação

• go 1.26 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17 · ed25519:d91480838ac982c9