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mod_sentry/README.md

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mod_sentry/README.md @ 4935:a85efae90e21

mod_rest: Expand mapping of XEP-0045 join stanza The previous 'join' mapping was apparently lost in translation when swithing to datamapper, so might as well map some properties allowing history control. Usually you probably want either zero history or history since the last known time of being joined. Maybe that the former should be the default?
author Kim Alvefur <zash@zash.se>
date Sat, 30 Apr 2022 01:00:01 +0200
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1 ---
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2 labels:
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3 - 'Stage-Beta'
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4 summary: 'Send errors to a Sentry server'
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5 rockspec:
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6 build:
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7 modules:
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8 mod_sentry.sentry: sentry.lib.lua
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9 ---
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10
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11 # Introduction
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12
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13 This module forwards select events to a [Sentry](https://sentry.io/) server.
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14
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15 # Configuration
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16
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17 There is a single configuration option, `sentry`, which should be a table
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18 containing the following parameters (optional unless otherwise stated):
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19
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20 `dsn`
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21 : **Required.** The DSN of the project in Sentry.
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22
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23 `insecure`
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24 : Whether to allow untrusted HTTPS certificates.
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25
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26 `server_name`
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27 : The name of the current server (defaults to the system hostname).
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28
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29 `tags`
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30 : An optional table of tags that will be used as the default for all
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31 events from this module.
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32
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33 `extra`
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34 : An optional table of custom extra data to attach to all events from
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35 this module.
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36
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37 Example configuration:
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38
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39 ```
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40 sentry = {
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41 dsn = "https://37iNFnR4tferFhoTPNe8X0@example.com/11";
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42 tags = {
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43 environment = "prod";
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44 };
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45 }
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46 ```
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47
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48 ## Log forwarding
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49
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50 You can configure log messages to be automatically forwarded to Sentry.
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51 This example will send all "warn" and "error" messages to Sentry, while
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52 sending all "info" and higher messages to syslog:
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53
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54 ```
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55 log = {
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56 info = "*syslog";
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57 { levels = "warn", to = "sentry" };
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58 }
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59 ```
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60
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61 # Developers
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62
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63 In addition to the automatic log forwarder, you can integrate Sentry
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64 forwarding directly into modules using the API.
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65
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66 ## API
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67
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68 Usage example:
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69
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70 ```
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71 local sentry = module:depends("sentry").new({
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72 logger = module.name;
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73 });
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74
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75 sentry:event("warning")
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76 :message("This is a sample warning")
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77 :send();
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78 ```
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79
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80 ### Events
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81
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82 Event objects have a number of methods you can call to add data to them.
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83 All methods return the event itself, which means you can chain multiple
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84 calls together for convenience.
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85
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86 After attaching all the data you want to include in the event, simply
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87 call `event:send()` to submit it to the server.
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88
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89 #### set(key, value)
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90
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91 Directly set a property of the event to the given value.
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92
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93 #### tag(name, value)
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94
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95 Set the specified tag to the given value.
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96
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97 May also be called with a table of key/value pairs.
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98
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99 #### extra(name, value)
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100
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101 Sets the specified 'extra' data. May also be called
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102 with a table of key/value pairs.
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103
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104 #### message(text)
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105
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106 Sets the message text associated with the event.
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107
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108 #### set_request(request)
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109
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110 Sets the HTTP request associated with the event.
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111
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112 This is used to indicate what incoming HTTP request
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113 was being processed at the time of the event.
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114
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115 #### add_exception(e)
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116
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117 Accepts an error object (from util.error or any arbitrary value)
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118 and attempts to map it to a Sentry exception.
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119
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120 May be called multiple times on the same event, to represent
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121 nested exceptions (the outermost exception should be added first).
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122
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123 #### add_breadcrumb(timestamp, type, category, message, data)
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124
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125 Add a breadcrumb to the event. A breadcrumb represents any useful
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126 piece of information that led up to the event. See Sentry documentation
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127 for allowable types and categories.
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128
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129 #### add_http_request_breadcrumb(request, message)
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130
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131 Helper to add a breadcrumb representing a HTTP request that was made.
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132
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133 The `message` parameter is an optional human-readable text description
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134 of the request.
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135
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136 #### send()
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137
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138 Sends the event to the Sentry server. Returns a promise that resolves
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139 to the response from the server.