使用Azure Api管理作为传递 [英] Use Azure Api Management as a passthrough

问题描述

我想在Azure API管理中创建一个策略，以将所有以代理/搜索"路径开头的调用转发到另一个URL.但是，我不想为每种可能性都在APIM中导入/创建端点，因为这使它成为维护的噩梦.例如.

I would like to create a policy in Azure API Management that forwards all calls that start with the path "proxy/search" to another url. However, i don't want to have to import/create endpoints in APIM for every possibility since this makes it a maintenance nightmare. For example..

• 获取 https://whatever.azure-api.net/proxy/search ?q = dogs
• 获取 https://whatever.azure-api.net/proxy/search/categories?q = dogs
• 获取 https ://whatever.azure-api.net/proxy/search/categories/x/y/z/etc ....?q = blah

• GET https://whatever.azure-api.net/proxy/search?q=dogs
• GET https://whatever.azure-api.net/proxy/search/categories?q=dogs
• GET https://whatever.azure-api.net/proxy/search/categories/x/y/z/etc....?q=blah

到相应的...

• 获取 https://mysearchapi.com/?q=dogs
• 获取 https://mysearchapi.com/categories?q=dogs
• 获取 https://mysearchapi.com/categories/x/y/z/etc....?q=blah

• GET https://mysearchapi.com/?q=dogs
• GET https://mysearchapi.com/categories?q=dogs
• GET https://mysearchapi.com/categories/x/y/z/etc....?q=blah

我已经在下面构建了策略，但APIM似乎希望从其映射到后端的确切路由.我不想这样做，因为此代理可能正在转发到许多路由api等...

I've built the policy below but it looks like APIM wants exact routes to map from it to the backend. I don't want to do this because this proxy may be forwarding to many, many routes apis etc...

<policies>
    <inbound>
        <base />
        <set-variable name="baseUrlSearch" value="https://mysearchapi.com/" />
        <set-variable name="matchSearch" value="proxy/search" />
        <set-variable name="isRoutingComplete" value="false" />
        <set-variable name="apiVersionDefaultSearch" value="1.0" />
        <choose>
            <when condition="@{return context.Request.Url.Path.Contains(context.Variables.GetValueOrDefault<string>("matchSearch"));}">
                <set-backend-service base-url="@(context.Variables.GetValueOrDefault<string>("baseUrlSearch"))" />
                <rewrite-uri template="@(context.Request.Url.Path.Replace(context.Variables.GetValueOrDefault<string>("matchSearch"), ""))" />
                <set-header name="Api-Version" exists-action="skip">
                    <value>@(context.Variables.GetValueOrDefault<string>("apiVersionDefaultSearch"))</value>
                </set-header>
                <set-variable name="isRoutingComplete" value="true" />
            </when>
            <when condition="@(!context.Variables.GetValueOrDefault<bool>("isRoutingComplete"))">
                <return-response>
                    <set-status code="400" reason="Bad Request Through Proxy" />
                </return-response>
            </when>
        </choose>
    </inbound>
    <outbound>
        <base />
    </outbound>
</policies>

推荐答案

您正在使自己的生活变得更加艰难.只需创建一个使用/proxy/*作为模板的操作，它将与您标识的所有URL匹配.

You are making your life much harder than it needs to be. Simply create an operation that uses /proxy/* as the template and it will match to all the URLs you identified.

然后只需为执行set-backend-service的操作创建一个策略.

Then just create a policy for that operation that does set-backend-service.

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