riskgod opened a new issue #4138:
URL: https://github.com/apache/apisix/issues/4138
hey, I want to debug hmac-auth plugin, so I add one warn in line 310 in
`hmac-auth.lua`
```
if conf.signed_headers and #conf.signed_headers >= 1 then
local headers_map = array_to_map(conf.signed_headers)
core.log.warn("headers_map: ", headers_map)
if params.signed_headers then
for _, header in ipairs(params.signed_headers) do
if not headers_map[header] then
return nil, {message = "Invalid signed header " ..
header}
end
end
end
end
```
But the apisix shows err
```
2021/04/27 15:43:21 [error] 4820#29392: *444 lua entry thread aborted:
runtime error: /Users/sh07016ml/chenjh/apisix/apisix/plugins/hmac-auth.lua:311:
bad argument #2 to 'warn' (expected table to have __tostring metamethod)
stack traceback:
coroutine 0:
[C]: in function 'warn'
/Users/sh07016ml/chenjh/apisix/apisix/plugins/hmac-auth.lua:311: in
function 'validate'
/Users/sh07016ml/chenjh/apisix/apisix/plugins/hmac-auth.lua:404: in
function 'phase_func'
/Users/sh07016ml/chenjh/apisix/apisix/plugin.lua:673: in function
'run_plugin'
/Users/sh07016ml/chenjh/apisix/apisix/plugin.lua:718: in function
'run_global_rules'
/Users/sh07016ml/chenjh/apisix/apisix/init.lua:325: in function
'http_access_phase'
access_by_lua(nginx.conf:236):2: in main chunk, client: 127.0.0.1,
server: _, request: "POST /checkAddress HTTP/1.1", host: "127.0.0.1:9080"
```
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