Complex classes like HttpClient often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use HttpClient, and based on these observations, apply Extract Interface, too.
1 | <?php |
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12 | class HttpClient |
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13 | { |
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14 | /** |
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15 | * The default request options. |
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16 | * |
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17 | * @var array |
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18 | */ |
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19 | protected static $defaultOptions = [ |
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20 | 'connect_timeout' => 5, |
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21 | 'timeout' => 25, |
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22 | ]; |
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23 | |||
24 | /** |
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25 | * The Guzzle client. |
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26 | * |
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27 | * @var \GuzzleHttp\Client |
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28 | */ |
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29 | protected $client; |
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30 | |||
31 | /** |
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32 | * The Guzzle response. |
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33 | * |
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34 | * @var \GuzzleHttp\Psr7\Response |
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35 | */ |
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36 | protected $response; |
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37 | |||
38 | /** |
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39 | * The request options. |
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40 | * |
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41 | * @var array |
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42 | */ |
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43 | protected $options = []; |
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44 | |||
45 | /** |
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46 | * Indicate whether to catch Guzzle exceptions. |
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47 | * |
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48 | * @var bool |
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49 | */ |
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50 | protected $catchExceptions = true; |
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51 | |||
52 | /** |
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53 | * Get the default request options. |
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54 | * |
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55 | * @return array |
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56 | */ |
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57 | 24 | public static function defaultOptions() |
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61 | |||
62 | /** |
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63 | * Set the default request options. |
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64 | * |
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65 | * @param array $options |
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66 | * @return void |
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67 | */ |
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68 | 1 | public static function setDefaultOptions(array $options) |
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72 | |||
73 | /** |
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74 | * Create a http client instance. |
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75 | * |
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76 | * @param array|string|\Psr\Http\Message\UriInterface $options base URI or any request options |
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77 | * |
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78 | * @throws \InvalidArgumentException |
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79 | */ |
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80 | 23 | public function __construct($options = []) |
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92 | |||
93 | /** |
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94 | * Get the Guzzle client instance. |
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95 | * |
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96 | * @return \GuzzleHttp\Client |
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97 | */ |
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98 | 2 | public function getClient() |
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102 | |||
103 | /** |
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104 | * Get whether to catch Guzzle exceptions or not. |
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105 | * |
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106 | * @return bool |
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107 | */ |
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108 | public function areExceptionsCaught() |
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112 | |||
113 | /** |
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114 | * Set whether to catch Guzzle exceptions or not. |
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115 | * |
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116 | * @param bool $catch |
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117 | * @return $this |
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118 | */ |
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119 | public function catchExceptions($catch) |
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125 | |||
126 | /** |
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127 | * Get the request options. |
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128 | * |
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129 | * @return array |
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130 | */ |
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131 | 9 | public function getOptions() |
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135 | |||
136 | /** |
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137 | * Set the request options. |
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138 | * |
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139 | * @param array $options |
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140 | * @return $this |
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141 | */ |
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142 | public function setOptions(array $options) |
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148 | |||
149 | /** |
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150 | * Merge the given options to the request options. |
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151 | * |
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152 | * @param array $options |
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153 | * @return $this |
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154 | */ |
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155 | public function mergeOptions(array $options) |
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159 | |||
160 | /** |
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161 | * Remove options using "dot" notation. |
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162 | * |
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163 | * @param string|array|null $key |
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164 | * @return $this |
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165 | */ |
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166 | 16 | public function removeOptions($key = null) |
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176 | |||
177 | /** |
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178 | * Get a request option using "dot" notation. |
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179 | * |
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180 | * @param string $key |
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181 | * @return mixed |
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182 | */ |
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183 | 3 | public function getOption($key) |
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187 | |||
188 | /** |
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189 | * Set a request option using "dot" notation. |
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190 | * |
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191 | * @param string|array $key |
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192 | * @param mixed $value |
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193 | * @return $this |
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194 | */ |
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195 | 10 | public function option($key, $value = null) |
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205 | |||
206 | /** |
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207 | * Set the request header. |
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208 | * |
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209 | * @param string $name |
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210 | * @param mixed $value |
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211 | * @return $this |
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212 | */ |
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213 | 4 | public function header($name, $value) |
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217 | |||
218 | /** |
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219 | * Set the request content type. |
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220 | * |
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221 | * @param string $type |
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222 | * @return $this |
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223 | */ |
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224 | 1 | public function contentType($type) |
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228 | |||
229 | /** |
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230 | * Set the request accept type. |
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231 | * |
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232 | * @param string $type |
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233 | * @return $this |
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234 | */ |
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235 | 2 | public function accept($type) |
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239 | |||
240 | /** |
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241 | * Set the request accept type to JSON. |
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242 | * |
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243 | * @return $this |
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244 | */ |
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245 | 1 | public function acceptJson() |
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249 | |||
250 | /** |
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251 | * Specify where the body of a response will be saved. |
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252 | * Set the "sink" option. |
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253 | * |
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254 | * @param mixed $dest |
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255 | * @return $this |
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256 | */ |
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257 | 1 | public function saveTo($dest) |
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261 | |||
262 | /** |
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263 | * Get the Guzzle response instance. |
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264 | * |
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265 | * @return \GuzzleHttp\Psr7\Response|null |
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266 | */ |
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267 | 8 | public function getResponse() |
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271 | |||
272 | /** |
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273 | * Get the status code of response. |
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274 | * |
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275 | * @return int |
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276 | */ |
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277 | public function getStatusCode() |
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283 | |||
284 | /** |
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285 | * Get the response header value. |
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286 | * |
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287 | * @param string $name |
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288 | * @return mixed |
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289 | */ |
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290 | public function getHeader($name) |
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296 | |||
297 | /** |
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298 | * Get all response headers values. |
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299 | * |
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300 | * @return array |
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301 | */ |
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302 | public function getHeaders() |
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306 | |||
307 | /** |
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308 | * Get response body. |
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309 | * |
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310 | * @return \GuzzleHttp\Psr7\Stream|null |
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311 | */ |
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312 | 2 | public function getBody() |
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318 | |||
319 | /** |
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320 | * Get response content. |
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321 | * |
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322 | * @return string|null |
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323 | */ |
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324 | 2 | public function getContent() |
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330 | |||
331 | /** |
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332 | * Get JSON decoded response content. |
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333 | * |
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334 | * @param bool $assoc |
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335 | * @return mixed |
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336 | */ |
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337 | 1 | public function getJson($assoc = true) |
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343 | |||
344 | /** |
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345 | * Make request to a URI. |
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346 | * |
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347 | * @param string $uri |
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348 | * @param string $method |
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349 | * @param array $options |
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350 | * @return $this |
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351 | */ |
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352 | 9 | public function request($uri, $method = 'GET', array $options = []) |
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366 | |||
367 | /** |
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368 | * Make request to a URI, expecting JSON content. |
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369 | * |
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370 | * @param string $uri |
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371 | * @param string $method |
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372 | * @param array $options |
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373 | * @return $this |
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374 | */ |
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375 | 3 | public function requestJson($uri, $method = 'GET', array $options = []) |
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381 | |||
382 | /** |
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383 | * Request the URI and return the response content. |
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384 | * |
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385 | * @param string $uri |
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386 | * @param string $method |
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387 | * @param array $options |
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388 | * @return string|null |
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389 | */ |
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390 | 1 | public function fetchContent($uri, $method = 'GET', array $options = []) |
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394 | |||
395 | /** |
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396 | * Request the URI and return the JSON decoded response content. |
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397 | * |
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398 | * @param string $uri |
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399 | * @param string $method |
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400 | * @param array $options |
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401 | * @param bool $assoc |
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402 | * @return mixed |
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403 | */ |
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404 | 1 | public function fetchJson($uri, $method = 'GET', array $options = [], $assoc = true) |
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408 | |||
409 | /** |
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410 | * Dynamically methods to set request option, send request, or get |
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411 | * response properties. |
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412 | * |
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413 | * @param string $method |
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414 | * @param array $args |
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415 | * @return mixed |
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416 | */ |
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417 | 6 | public function __call($method, $args) |
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434 | } |
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435 |