Mercurial > prosody-modules
annotate mod_log_json/README.markdown @ 5354:39d59d857bfb
mod_http_oauth2: Use new mod_cron API for periodic cleanup
Less frequent but this isn't that important after all since, as the
comment states, expired codes are not usable anyway. They're also not
that large so memory usage probably doesn't matter.
| author | Kim Alvefur <zash@zash.se> |
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| date | Sat, 22 Apr 2023 11:59:52 +0200 |
| parents | 4356088ad675 |
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| rev | line source |
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| 3735 | 1 --- |
| 2 summary: JSON Log Sink | |
| 3 --- | |
| 4 | |
| 5 Conifiguration | |
| 6 ============== | |
| 7 | |
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8 Here we log to `/var/log/prosody/prosody.json`: |
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9 |
| 3735 | 10 ``` {.lua} |
| 11 log = { | |
| 12 -- your other log sinks | |
| 13 info = "/var/log/prosody/prosody.log" | |
| 14 -- add this: | |
| 15 { to = "json", filename = "/var/log/prosody/prosody.json" }; | |
| 16 } | |
| 17 ``` | |
| 18 | |
| 3746 | 19 ## UDP |
| 20 | |
| 21 Alternatively, it can send logs via UDP: | |
| 22 | |
| 23 ```lua | |
| 24 log = { | |
| 25 { to = "json", udp_host = "10.1.2.3", udp_port = "9999" }; | |
| 26 } | |
| 27 ``` | |
| 28 | |
| 3735 | 29 Format |
| 30 ====== | |
| 31 | |
| 32 JSON log files consist of a series of `\n`-separated JSON objects, | |
| 33 suitable for mangling with tools like | |
| 34 [`jq`](https://stedolan.github.io/jq/). | |
| 35 | |
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36 Example (with whitespace and indentation for readability): |
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37 |
| 3735 | 38 ``` {.json} |
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39 { |
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40 "args" : [], |
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41 "datetime" : "2019-11-03T13:38:28Z", |
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42 "level" : "info", |
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43 "message" : "Client connected", |
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44 "source" : "c2s55f267f5b9d0" |
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45 } |
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46 { |
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47 "args" : [ |
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48 "user@example.net" |
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49 ], |
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50 "datetime" : "2019-11-03T13:38:28Z", |
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51 "level" : "debug", |
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52 "message" : "load_roster: asked for: %s", |
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53 "source" : "rostermanager" |
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54 } |
| 3735 | 55 ``` |
| 56 | |
| 57 `datetime` | |
| 58 : [XEP-0082]-formatted timestamp. | |
| 59 | |
| 60 `source` | |
| 61 : Log source, usually a module or a connected session. | |
| 62 | |
| 63 `level` | |
| 64 : `debug`, `info`, `warn` or `error` | |
| 65 | |
| 66 `message` | |
| 67 : The log message in `printf` format. Combine with `args` to get the | |
| 68 final message. | |
| 69 | |
| 70 `args` | |
| 71 : Array of extra arguments, corresponding to `printf`-style `%s` | |
| 72 formatting in the `message`. | |
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73 |
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74 Formatted message |
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75 ----------------- |
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76 |
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77 If desired, at the obvious expense of performance, the formatted version of |
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78 the string can be included in the JSON object by specifying the `formatted_as` |
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79 key in the logger config: |
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80 |
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81 ``` {.lua} |
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82 log = { |
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83 -- ... other sinks ... |
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84 { to = "json", formatted_as = "msg_formatted", filename = "/var/log/prosody/prosody.json" }; |
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85 } |
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86 |
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87 ``` |
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88 |
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89 This will expose the formatted message in the JSON as separate `msg_formatted` |
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90 key. It is possible to override existing keys using this (for example, the |
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91 `message` key), but not advisible. |