Ruby on rails 使用savon和Echosign API发布预填充PDF

我使用savonrb作为SOAP客户端向echosign发出api请求以生成小部件。 似乎savon只使用最后一个字段的值覆盖我的合并字段，而不是将它们作为数组传递

我用于进行api调用的参数：

call_api(:create_personal_embedded_widget, senderInfo: {email: sender_email}, widgetInfo: {
 "callbackInfo" => {
   "signedDocumentUrl" => signed_document_url
 },  
 "fileInfos" => {
   "FileInfo" => {
     "file" =>encoded_file,
     "fileName" =>"simple_text.docx",
     "mimeType "=>"application/msword"
   }  
 },  
 "formFieldLayerTemplates" => "",
 "locale" => "",
 "mergeFieldInfo" => {
   "mergeFields" => {
     "MergeField" => 
     {
       "defaultValue" => "Foo Bar",
       "fieldName" => "fullName"
     },  
     "MergeField" => 
     {
       "defaultValue" => "01-01-1980",
       "fieldName" => "dob"
     }
   }  
 },  
 "name" => document_name,
 "securityOptions" => "",
 "signatureFlow" =>"SENDER_SIGNS_LAST",
 "widgetAuthFailureInfo" => {
   "deframe" =>"true",
   "delay" =>"10",
   "url" => error_call_back_url
 },  
 "widgetCompletionInfo" => {
   "deframe" =>"true",
   "delay" =>"10",
   "url" => success_call_back_url
 }  
}, personalizationInfo: "")  

实际传递给echosign的内容：

<ins2:mergeFieldInfo>
  <ins3:mergeFields>
    <ins3:MergeField>
      <ins3:defaultValue>01-01-1980</ins3:defaultValue>
      <ins3:fieldName>dob</ins3:fieldName>
    </ins3:MergeField>
  </ins3:mergeFields>
</ins2:mergeFieldInfo>

我一直在绞尽脑汁，但没有用，我知道它会覆盖这些值，但不明白为什么，也不知道如何对它们进行索引，以便字段是增量的

---

提前谢谢

似乎不是soap或savon的问题，是我没有正确创建数组

mergeFields = { 'MergeField' => [ 
    {'defaultValue' => 'Foo Bar', 'fieldName' => 'fullName' }, 
    {'defaultValue' => '212-555-1234',   'fieldName' => 'phoneNumber },
  ] 
}

在hash-it-self中，我只输入了变量

"mergeFieldInfo" => {
    "mergeFields" => mergeFields
},