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Allow format to be an object to generate JSON logs. The object keys
become JSON field names, and values support string, variable, and JS.
Note that when there is no JS in the format values, the object will
be pre-serialized to a JSON template string at configuration phase
for better performance.
Example config:
{
"access_log": {
"path": "/tmp/access.log",
"format": {
"remote_addr": "$remote_addr",
"time_local": "$time_local",
"request_line": "$request_line",
"status": "$status",
"body_bytes_sent": "$body_bytes_sent",
"header_referer": "$header_referer",
"header_user_agent": "$header_user_agent"
}
}
}
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This is a preparatory refactoring for upcoming JSON format support
in access log. We will extend format option to access object for
JSON support.
No functional changes.
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This is a preparatory refactoring for upcoming JSON format support
in access log.
No functional changes.
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When using JS configuration for the "format" option, access log entries
were being written without newline characters. This commit adds the
missing newline character to each log entry.
Closes: https://github.com/nginx/unit/issues/1458
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This nxt_tstr_cond_t will be reused for the feature of adding "if"
option to the "match" object. The two "if" options have the same usage.
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A common pattern was to declare variables in functions like
static nxt_str_t ...
Not sure why static, as they were being treated more like string
literals (and of course they are _not_ thread safe), let's actually make
them constants (qualifier wise).
This handles core code conversion.
Reviewed-by: Zhidao HONG <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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This feature allows users to specify conditions to control if access log
should be recorded. The "if" option supports a string and JavaScript code.
If its value is empty, 0, false, null, or undefined, the logs will not be
recorded. And the '!' as a prefix inverses the condition.
Example 1: Only log requests that sent a session cookie.
{
"access_log": {
"if": "$cookie_session",
"path": "..."
}
}
Example 2: Do not log health check requests.
{
"access_log": {
"if": "`${uri == '/health' ? false : true}`",
"path": "..."
}
}
Example 3: Only log requests when the time is before 22:00.
{
"access_log": {
"if": "`${new Date().getHours() < 22}`",
"path": "..."
}
}
or
{
"access_log": {
"if": "!`${new Date().getHours() >= 22}`",
"path": "..."
}
}
Closes: https://github.com/nginx/unit/issues/594
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It's for the introduction of njs support.
For each option that supports native variable and JS template literals introduced next,
it's unified as template string.
No functional changes.
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No functional changes.
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