Annotate

mod_log_json/README.markdown @ 4930:13070c6a7ce8

mod_http_muc_log: Fix exception on lack of trailing slash in room path A request to /room leads to the match call returning nil which in turn calls nodeprep(nil). In Prosody 0.11.x this does nothing and simply returns the nil, while in 0.12 it is an error. Now it redirects to the calendar view at /room/ - even for non-existant rooms. Discovered at a deployment with http_paths = { muc_log = "/" } and requests to /robots.txt and similar, which now result in a uses redirect before returning 404.
author Kim Alvefur <zash@zash.se>
date Fri, 22 Apr 2022 14:29:32 +0200
parent 4462:4356088ad675
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1 ---
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2 summary: JSON Log Sink
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3 ---
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4
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5 Conifiguration
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6 ==============
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7
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8 Here we log to `/var/log/prosody/prosody.json`:
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9
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10 ``` {.lua}
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11 log = {
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12 -- your other log sinks
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13 info = "/var/log/prosody/prosody.log"
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14 -- add this:
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15 { to = "json", filename = "/var/log/prosody/prosody.json" };
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16 }
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17 ```
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18
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19 ## UDP
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20
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21 Alternatively, it can send logs via UDP:
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22
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23 ```lua
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24 log = {
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25 { to = "json", udp_host = "10.1.2.3", udp_port = "9999" };
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26 }
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27 ```
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28
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29 Format
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30 ======
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31
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32 JSON log files consist of a series of `\n`-separated JSON objects,
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33 suitable for mangling with tools like
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34 [`jq`](https://stedolan.github.io/jq/).
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35
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36 Example (with whitespace and indentation for readability):
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37
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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 }
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55 ```
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56
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57 `datetime`
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58 : [XEP-0082]-formatted timestamp.
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59
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60 `source`
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61 : Log source, usually a module or a connected session.
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62
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63 `level`
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64 : `debug`, `info`, `warn` or `error`
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65
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66 `message`
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67 : The log message in `printf` format. Combine with `args` to get the
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68 final message.
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69
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70 `args`
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71 : Array of extra arguments, corresponding to `printf`-style `%s`
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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.