{"error":"unsupported_grant_type"}

根据提供的引用内容，显示的结果是{"error": "unsupported_grant_type", "error_description": "The authorization grant type is not supported"}。而根据引用，传递给API的参数是{"grant_type":"client_credentials", "client_id":"pGB2vIVTXn9ATexEsqMIDYO", "client_secret":"5yNZqWSIuj4PVRGdavjw1e5U3z9K6Kb"}。据引用，API的调用方式是通过POST请求发送JSON格式的数据。所以，根据提供的问题{"error":"unsupported_grant_type"}，可以推断这个错误是由于使用了不支持的授权类型导致的。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [C++ opencv+百度OCR“error“: “unsupported_grant_type“, “error_description“: “The authorization ...](https://blog.csdn.net/dwf1354046363/article/details/119883652)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
- *3* [unsupported_grant_type](https://blog.csdn.net/dqchouyang/article/details/50543579)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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