Mule HTTP请求：错误查询参数与大字符串

Question

I am calling the REST (PHP) from Mule HTTP Request using query-param.

This works fine, with small params data!

But one of the params ("rest_data") is a content file (Base64 encoded). When the file content is large (> ~8K) the request faild. I think that params does not support large strings.

What should be the way to use body instead query-param on Mule in this case?

See the configuration file:

   <http:request-config name="HTTP_Request_Configuration" host="164.164.164.233" port="80" basePath="/crmtec/service/v4_1/rest.php" doc:name="HTTP Request Configuration">
    </http:request-config>
    <http:request config-ref="HTTP_Request_Configuration" path="/" method="POST" doc:name="HTTP Documento">
        <http:request-builder>
            <http:query-param paramName="method" value="set_document_revisions"/>
            <http:query-param paramName="input_type" value="JSON"/>
            <http:query-param paramName="response_type" value="JSON"/>
            <http:query-param paramName="rest_data" value="#[flowVars.params.rest_data]"/>
        </http:request-builder>
        <http:success-status-code-validator values="0..599"/>
    </http:request>

Answer 1

Whatever is in the payload will be send in the body of the HTTP request, so you should add that rest_data to the payload with a set-payload component before the http:request component:

<set-payload value="#[flowVars.params.rest_data**]"/>

It's not a good practice to use query params for large data, that's why it fails.