Nếu áp dụng đúng, phần outbound giờ sẽ trông như sau:

<outbound>
    <set-body>@{
        var text = context.Response.Body
                   .As<string>(preserveContent: true);
        return new XElement("response", text).ToString();
    }</set-body>
    <base />
</outbound>

Toàn bộ mã sẽ trông như sau:

<!--
    - Policies are applied in the order they appear.
    - Position <base/> inside a section to inherit policies from the outer scope.
    - Comments within policies are not preserved.
-->
<!-- Add policies as children to the <inbound>, <outbound>, <backend>, and <on-error> elements -->
<policies>
    <!-- Throttle, authorize, validate, cache, or transform the requests -->
    <inbound>
        <set-body>@{
    var doc = context.Request.Body
              .As<XDocument>(preserveContent: true);
    var name = doc.Root
              .Element("name")?
              .Value
              ?? string.Empty;
    var result = new JObject();
    result["name"] = name;
    return result.ToString();
}</set-body>
        <base />
    </inbound>
    <!-- Control if and how the requests are forwarded to services  -->
    <backend>
        <base />
    </backend>
    <!-- Customize the responses -->
    <outbound>
        <set-body>@{
        var text = context.Response.Body
                   .As<string>(preserveContent: true);
        return new XElement("response", text).ToString();
    }</set-body>
        <base />
    </outbound>
    <!-- Handle exceptions and customize error responses  -->
    <on-error>
        <base />
    </on-error>
</policies>

Phân loại policy

Azure API Management

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