如何在 wso2 中组合 2 个 json 有效负载

我认为XSLT对于这一点来说太过分了，我认为Datamapper在这里不是一个可行的 Select ，因为我们正在处理多个输入.你可以简单地用Enrich Mediator来做这件事.以下是您的有效负载的一个示例.我试图提供一个接近您需求的示例，我已经对有效负载进行了硬编码，Payload Factory描述了您的后端调用响应和原始的PL.

<?xml version="1.0" encoding="UTF-8"?>
<api context="/json" name="TestAPI" xmlns="http://ws.apache.org/ns/synapse">
    <resource methods="GET">
        <inSequence>
            <payloadFactory description="Build JSON" media-type="json">
                <format>
                    {
                        "products": [
                            {
                                "product_id": 1,
                                "product_name" : "abc"   
                            },
                            {  
                               "product_id": 2,
                               "product_name" : "xyz"                               
                            }
                        ]
                    }
                    </format>
                <args/>
            </payloadFactory>
            <enrich description="First save the Original PL to a property" >
                <source clone="true" type="body"/>
                <target property="ORIGINAL_PL" type="property"/>
            </enrich>
            <payloadFactory description="Build JSON second PL" media-type="json">
                <format>
                    {
                        "amount": {
                            "total_amount": 0.46,
                            "total_tax": 0
                          }
                    }
                    </format>
                <args/>
            </payloadFactory>
            <enrich description="Save the PL from the second request to another property">
                <source clone="true" type="body"/>
                <target property="SECOND_PL" type="property"/>
            </enrich>
            <enrich description="Restore original payload">
                <source clone="false" property="ORIGINAL_PL" type="property"/>
                <target type="body"/>
            </enrich>
            <enrich description="Now add the second PL as a Child to the original" >
                <source clone="true" property="SECOND_PL" type="property"/>
                <target action="child" xpath="json-eval($)"/>
            </enrich>
            <log level="full"/>
            <respond/>
        </inSequence>
        <outSequence/>
        <faultSequence/>
    </resource>
</api>

这就是上述情况的结果.

{
  "products": [
    {
      "product_id": 1,
      "product_name": "abc"
    },
    {
      "product_id": 2,
      "product_name": "xyz"
    }
  ],
  "amount": {
    "total_amount": 0.46,
    "total_tax": 0
  }
}