1 | # [@lykmapipo/jwt-common](https://github.com/lykmapipo/jwt-common) *0.4.1*
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2 |
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3 | > Helper utilities for day to day jwt usage.
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4 |
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5 |
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6 | ### lib/index.js
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7 |
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8 |
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9 | #### withDefaults([optns])
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10 |
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11 | merge provided options with defaults
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12 |
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13 |
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14 |
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15 |
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16 | ##### Parameters
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17 |
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18 | | Name | Type | Description | |
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19 | | ---- | ---- | ----------- | -------- |
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20 | | optns | `Object` | provided options | *Optional* |
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21 |
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22 |
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23 |
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24 |
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25 | ##### Examples
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26 |
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27 | ```javascript
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28 |
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29 | const { withDefaults } = require('@lykmapipo/jwt-common');
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30 | withDefaults({ secret: 'xo67Rw' }) // => { secret: 'xo67Rw', ...}
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31 | ```
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32 |
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33 |
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34 | ##### Returns
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35 |
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36 |
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37 | - `Object` merged options with environment variables
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38 |
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39 |
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40 |
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41 | #### encode(payload[, opts], cb)
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42 |
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43 | encode given payload as jwt.
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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 | ##### Parameters
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49 |
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50 | | Name | Type | Description | |
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51 | | ---- | ---- | ----------- | -------- |
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52 | | payload | `Object` | data to encode. | |
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53 | | opts | `Object` | jwt sign or encoding options. | *Optional* |
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54 | | cb | `Function` | callback to invoke on success or failure. | |
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55 |
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56 |
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57 |
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58 |
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59 | ##### Examples
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60 |
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61 | ```javascript
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62 |
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63 | const { encode } = require('@lykmapipo/jwt-common');
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64 |
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65 | const payload = { _id: 'xo5', permissions: ['user:read'] };
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66 |
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67 | // encode with default options
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68 | encode(payload, (error, jwt) => { ... });
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69 |
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70 | // encode with merged options
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71 | encode(payload, { secret: 'xo67Rw' }, (error, jwt) => { ... });
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72 | ```
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73 |
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74 |
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75 | ##### Returns
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76 |
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77 |
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78 | - `String` `Error` jwt token if success or error.
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79 |
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80 |
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81 |
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82 | #### decode(token[, opts], cb)
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83 |
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84 | decode and verify given jwt.
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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 | ##### Parameters
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90 |
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91 | | Name | Type | Description | |
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92 | | ---- | ---- | ----------- | -------- |
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93 | | token | `String` | jwt token to decode. | |
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94 | | opts | `Object` | jwt verify or decoding options. | *Optional* |
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95 | | cb | `Function` | callback to invoke on success or failure. | |
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96 |
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97 |
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98 |
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99 |
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100 | ##### Examples
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101 |
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102 | ```javascript
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103 |
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104 | const { decode } = require('@lykmapipo/jwt-common');
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105 |
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106 | const token = 'eyJhbGciOiJIUz...';
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107 |
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108 | // decode with default options
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109 | decode(token, (error, payload) => { ... });
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110 |
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111 | // decode with provided options
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112 | decode(token, { secret: 'xo67Rw' }, (error, payload) => { ... });
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113 | ```
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114 |
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115 |
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116 | ##### Returns
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117 |
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118 |
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119 | - `Payload` `Error` payload if success or error.
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120 |
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121 |
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122 |
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123 | #### refresh(token, payload[, opts], cb)
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124 |
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125 | decode a given jwt, if expired return new jwt.
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126 |
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127 |
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128 |
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129 |
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130 | ##### Parameters
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131 |
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132 | | Name | Type | Description | |
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133 | | ---- | ---- | ----------- | -------- |
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134 | | token | `String` | jwt token to refresh. | |
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135 | | payload | `Object` | data to encode. | |
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136 | | opts | `Object` | jwt verify or decoding options. | *Optional* |
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137 | | cb | `Function` | callback to invoke on success or failure. | |
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138 |
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139 |
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140 |
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141 |
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142 | ##### Examples
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143 |
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144 | ```javascript
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145 |
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146 | const { refresh } = require('@lykmapipo/jwt-common');
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147 |
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148 | const token = 'eyJhbGciOiJIUz...';
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149 | const payload = { _id: 'xo5', permissions: ['user:read'] };
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150 |
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151 | // refresh with default options
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152 | refresh(token, payload, (error, jwt) => { ... });
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153 |
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154 | // refresh with provided options
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155 | refresh(token, payload, { secret: 'xo67Rw' }, (error, jwt) => { ... });
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156 | ```
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157 |
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158 |
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159 | ##### Returns
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160 |
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161 |
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162 | - `String` `Error` jwt token if success or error.
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163 |
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164 |
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165 |
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166 | #### isExpired(token[, opts, cb])
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167 |
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168 | check if jwt expired without verifying if the signature is valid.
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169 |
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170 |
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171 |
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172 |
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173 | ##### Parameters
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174 |
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175 | | Name | Type | Description | |
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176 | | ---- | ---- | ----------- | -------- |
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177 | | token | `String` | jwt token to check for expiry. | |
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178 | | opts | `Object` | jwt verify or decoding options. | *Optional* |
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179 | | cb | `Function` | callback to invoke on success or failure. | *Optional* |
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180 |
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181 |
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182 |
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183 |
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184 | ##### Examples
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185 |
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186 | ```javascript
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187 |
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188 | const { isExpired } = require('@lykmapipo/jwt-common');
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189 |
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190 | const token = 'eyJhbGciOiJIUz...';
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191 |
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192 | // isExpired with default options
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193 | isExpired(token); //=> false
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194 |
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195 | // isExpired with provided options
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196 | const optns = { clockTimestamp : Math.floor(Date.now() / 1000) }
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197 | isExpired(token, optns); //=> true
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198 | ```
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199 |
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200 |
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201 | ##### Returns
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202 |
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203 |
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204 | - `Boolean` whether jwt expired.
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205 |
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206 |
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207 |
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208 | #### decodeJwtToUser([opts]) *private method*
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209 |
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210 | return a function used to decode jwt to user.
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211 |
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212 |
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213 |
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214 |
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215 | ##### Parameters
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216 |
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217 | | Name | Type | Description | |
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218 | | ---- | ---- | ----------- | -------- |
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219 | | opts | `Object` | decoding options. | *Optional* |
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220 | | opts.user | `Functon` | | *Optional* |
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221 |
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222 |
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223 |
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224 |
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225 | ##### Returns
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226 |
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227 |
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228 | - `Function` jwt to user decoder
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229 |
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230 |
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231 |
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232 | #### parseJwtFromHttpHeaders(done)
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233 |
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234 | parse request headers to get jwt.
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235 |
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236 |
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237 |
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238 |
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239 | ##### Parameters
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240 |
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241 | | Name | Type | Description | |
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242 | | ---- | ---- | ----------- | -------- |
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243 | | done | `Function` | callback to invoke on success or failure. | |
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244 |
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245 |
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246 |
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247 |
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248 | ##### Examples
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249 |
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250 | ```javascript
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251 |
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252 | const { parseJwtFromHttpHeaders } = require('@lykmapipo/jwt-common');
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253 | parseJwtFromHttpHeaders(request, (error, jwt) => { ... });
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254 | ```
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255 |
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256 |
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257 | ##### Returns
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258 |
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259 |
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260 | - `Payload` `Error` jwt if success or error.
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261 |
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262 |
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263 |
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264 | #### parseJwtFromHttpQueryParams(done)
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265 |
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266 | parse request headers to get jwt.
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267 |
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268 |
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269 |
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270 |
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271 | ##### Parameters
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272 |
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273 | | Name | Type | Description | |
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274 | | ---- | ---- | ----------- | -------- |
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275 | | done | `Function` | callback to invoke on success or failure. | |
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276 |
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277 |
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278 |
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279 |
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280 | ##### Examples
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281 |
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282 | ```javascript
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283 |
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284 | const { parseJwtFromHttpQueryParams } = require('@lykmapipo/jwt-common');
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285 | parseJwtFromHttpQueryParams(request, (error, jwt) => { ... });
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286 | ```
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287 |
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288 |
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289 | ##### Returns
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290 |
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291 |
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292 | - `Payload` `Error` jwt if success or error.
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293 |
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294 |
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295 |
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296 | #### parseJwtFromHttpRequest(done)
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297 |
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298 | parse request headers to get jwt.
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299 |
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300 |
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301 |
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302 |
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303 | ##### Parameters
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304 |
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305 | | Name | Type | Description | |
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306 | | ---- | ---- | ----------- | -------- |
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307 | | done | `Function` | callback to invoke on success or failure. | |
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308 |
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309 |
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310 |
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311 |
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312 | ##### Examples
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313 |
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314 | ```javascript
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315 |
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316 | const { parseJwtFromHttpRequest } = require('@lykmapipo/jwt-common');
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317 | parseJwtFromHttpRequest(request, (error, jwt) => { ... });
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318 | ```
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319 |
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320 |
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321 | ##### Returns
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322 |
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323 |
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324 | - `Payload` `Error` jwt if success or error.
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325 |
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326 |
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327 |
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328 | #### jwtAuth([opts])
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329 |
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330 | create middlware to authorize request using jwt
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331 |
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332 |
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333 |
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334 |
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335 | ##### Parameters
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336 |
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337 | | Name | Type | Description | |
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338 | | ---- | ---- | ----------- | -------- |
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339 | | opts | `Object` | jwt verify or decoding options. | *Optional* |
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340 |
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341 |
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342 |
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343 |
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344 | ##### Examples
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345 |
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346 | ```javascript
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347 |
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348 | const { jwtAuth } = require('@lykmapipo/jwt-common');
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349 |
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350 | app.get('/users', jwtAuth({ secret: 'xo67Rw' }), (req, res, next) => { ... });
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351 | ```
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352 |
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353 |
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354 | ##### Returns
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355 |
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356 |
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357 | - `Function` express compactoble middleware.
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358 |
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359 |
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360 |
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361 | #### jwtPermit(requiredScopes)
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362 |
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363 | create middlware to check request for jwt permissions(or scopes).
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364 |
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365 |
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366 |
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367 |
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368 | ##### Parameters
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369 |
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370 | | Name | Type | Description | |
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371 | | ---- | ---- | ----------- | -------- |
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372 | | requiredScopes | `Array.<String>` `String` | required scopes or permissions. | |
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373 |
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374 |
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375 |
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376 |
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377 | ##### Examples
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378 |
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379 | ```javascript
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380 |
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381 | const { jwtPermit } = require('@lykmapipo/jwt-common');
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382 |
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383 | app.get('/users', jwtPermit('user:read'), (req, res, next) => { ... });
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384 | ```
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385 |
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386 |
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387 | ##### Returns
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388 |
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389 |
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390 | - `Function` express compactoble middleware.
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391 |
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392 |
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393 |
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394 |
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395 | *Documentation generated with [doxdox](https://github.com/neogeek/doxdox).*
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