[jira] [Created] (CAMEL-14163) Support for multiple request query parameters in Rest component

["Zoran Regvart (Jira)" <ji...@apache.org>]

Zoran Regvart created CAMEL-14163:
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             Summary: Support for multiple request query parameters in Rest component
                 Key: CAMEL-14163
                 URL: https://issues.apache.org/jira/browse/CAMEL-14163
             Project: Camel
          Issue Type: Improvement
          Components: rest
    Affects Versions: 2.18.0
            Reporter: Zoran Regvart
            Assignee: Zoran Regvart


The RestProducer doesn't have a way for specifying multiple query parameters. Given a header value that's a collection of values the resulting query parameter will be a joining of those values with the comma separator.

Given that the query parameter can be specified multiple times, it is more common to have the parameter specified for each value of the collection rather than a single parameter with the coma-separated list of values.

For example, endpoint URI of {{rest:GET:/v2/:pet/findByStatus}} and endpoint property {{queryParameters}} set to {{status=\{status\}}}, and on the message header the {{status}} is a collection or array of values (e.g. {{["available", "pending"]}}), the resulting URI will be {{/v2/pet/findByStatus?status=available,pending}}.

I think we could extemd the syntax of the placeholder (the {{\{status\}}}) to indicate that multiple query parameters should be provided instead of the coma-separated values.

Perhaps something like {{status=\{status*\}}} as we already have {{status=\{status?\}}} to signify optional parameters.



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