[英]Aggregate multiple json responses with aggregate mediator in wso2 esb
我在wso2 esb中定義了一個api,它通過接收列表調用了兩個內部API,並且傳遞了json響應,如下所示。(示例響應)
{
"name": "api1",
"response": "success",
"status": "1"
}
和
{
"name": "api2",
"response": "unsuccess",
"status": "2"
}
我需要通過將這兩個響應聚合為單個響應來傳遞響應。 我關於payloadfactory並且能夠構建聚合響應。 但是我需要聚合來自這兩個api的響應,並將響應作為一個單獨的json對象生成並通過包括這兩個響應,如下所示
{
"response1": {
"name": "api1",
"response": "success",
"status": "1"
},
"response2": {
"name": "api2",
"response": "unsuccess",
"status": "2"
}
}
那么如何用WSO2ESB來完成。 我正在使用最新版本的ESB。
我創建了三個API並使用Clone聚合API響應,下面是我的API,用於聚合兩個API端點的響應
<api xmlns="http://ws.apache.org/ns/synapse" name="aggregateResponse" context="/aggregate">
<resource methods="POST">
<inSequence>
<clone id="aggr">
<target>
<sequence>
<call>
<endpoint>
<http method="GET" uri-template="http://localhost:8280/getresponse1"/>
</endpoint>
</call>
<log>
<property name="Logger1" expression="json-eval($.)"/>
</log>
</sequence>
</target>
<target>
<sequence>
<call>
<endpoint>
<http method="GET" uri-template="http://localhost:8280/getResponse2"/>
</endpoint>
</call>
<log>
<property name="Logger1" expression="json-eval($.)"/>
</log>
</sequence>
</target>
</clone>
<payloadFactory media-type="json">
<format>{"responses":{ "name":"$1","response":"$2","status":"$3"}}</format>
<args>
<arg evaluator="json" expression="$.name"/>
<arg evaluator="json" expression="$.response"/>
<arg evaluator="json" expression="$.status"/>
</args>
</payloadFactory>
<loopback/>
</inSequence>
<outSequence>
<property name="res" scope="default">
<ResponseDetail xmlns=""/>
</property>
<aggregate id="aggr">
<completeCondition>
<messageCount min="-1" max="-1"/>
</completeCondition>
<onComplete expression="$body//responses" enclosingElementProperty="res">
<payloadFactory media-type="json">
<format>{"response1":$1 ,"response2":$2}</format>
<args>
<arg evaluator="json" expression="$.ResponseDetail.responses[0]"/>
<arg evaluator="json" expression="$.ResponseDetail.responses[1]"/>
</args>
</payloadFactory>
<send/>
</onComplete>
</aggregate>
</outSequence>
</resource>
</api>
API 1:
<api xmlns="http://ws.apache.org/ns/synapse" name="response1" context="/getresponse1">
<resource methods="GET">
<inSequence>
<payloadFactory media-type="json">
<format>{ "name": "api1", "response": "success", "status": "1"}</format>
<args/>
</payloadFactory>
<respond/>
</inSequence>
</resource>
</api>
API 2:
<api xmlns="http://ws.apache.org/ns/synapse" name="response2" context="/getResponse2">
<resource methods="GET">
<inSequence>
<payloadFactory media-type="json">
<format>{ "name": "api2", "response": "unsuccess", "status": "2"}</format>
<args/>
</payloadFactory>
<respond/>
</inSequence>
</resource>
</api>
那么,這就是豐富的調解員變得方便的地方。 請試一試。 我沒有測試過這個,因為我現在沒有做WSO2相關的事情。 但我們熱烈歡迎您的反饋。 偽代碼是這樣的。
<call>
<endpoint>
<http method="GET" uri-template="http://www.mocky.io/v2/some-ep"/>
</endpoint>
</call>
<enrich>
<source type="body" clone="true"/>
<target type="property" property="first-json"/>
</enrich>
<call>
<endpoint>
<http method="GET" uri-template="http://www.mocky.io/v2/another-ep"/>
</endpoint>
</call>
<enrich>
<source type="property" property="first-json" clone="true"/>
<target action="sibling" xpath="//"/>
</enrich>
</respond>
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.