请教如何使用返回的msg来执行http请求

ergou

返回的msg.payload怎么用到http请求里面 的post参数里  

                               
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返回了一个图片链接 想用post提交到接口上

zheng1112

这样试试：
在http请求的url中填写，http://www.api.com?id={{ payload }}

onions

如果是payload 字段，默认就会以http请求 body的形式发送给接口，   至于如何处理，取决于你的接口的处理逻辑。

进一步，你的问题真正想表达的意思可能是，如何构造一个能让接口处理的请求http请求头。

首先你要知道你的接口类型是什么，有哪些请求参数，然后你需要构造一个符合接口要求的 http请求头。

这里涉及两个node 的配置 ，
第一步，你需要新增一个 change node 或function node ，在其中构造符合 接口要求的http请求头。
第二步， 你需要在http request node 中 配置 header 的conten-type类型为接口的类型。

如果还不明白，一个例子作参考，如下。

[{"id":"d25e24f7e03a1406","type":"tab","label":"Flow10","disabled":false,"info":"","env":[]},{"id":"71693b8bfde5b779","type":"inject","z":"d25e24f7e03a1406","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":100,"y":320,"wires":[["1abec6e3e32021a5"]]},{"id":"1abec6e3e32021a5","type":"change","z":"d25e24f7e03a1406","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"{\"name\":\"Tom\",\"age\":16}","tot":"json"}],"action":"","property":"","from":"","to":"","reg":false,"x":280,"y":320,"wires":[["fd14eaf6a15fa720"]]},{"id":"fd14eaf6a15fa720","type":"httprequest","z":"d25e24f7e03a1406","name":"","method":"POST","ret":"txt","paytoqs":"ignore","url":"http://127.0.0.1:1880/print","tls":"","persist":false,"proxy":"","insecureHTTPParser":false,"authType":"","senderr":false,"headers":[{"keyType":"Content-Type","keyValue":"","valueType":"application/json","valueValue":""}],"credentials":{},"x":510,"y":320,"wires":[["c2d07f8c296ca5be"]]},{"id":"c2d07f8c296ca5be","type":"debug","z":"d25e24f7e03a1406","name":"debug28","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":700,"y":320,"wires":[]}]

onions

zheng1112 发表于 2022-9-13 11:24
这样试试：
在http请求的url中填写，http://www.api.com?id={{ payload }}

将参数写在URL中，是 HTTP GET的请求方式，并非HTTP POST。

另外， Http request node 中http url输入框配置 似乎不支持 mustache语法，如果需要{{ }}这样写,还需要增加其他node，如template

ergou

onions 发表于 2022-9-24 12:45
如果是payload 字段，默认就会以http请求 body的形式发送给接口，   至于如何处理，取决于你的接口的处理逻 ...

谢谢大哥！解决了