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Search and replace in response policy (#48)
* Added ‘SearchAndReplace’ Apigee policy * Renamed to ‘SearchAndReplaceResponse’ * Fixed typo * Removed any ES6 syntax * Added SearchAndReplaceResponse Apigee policy to sandbox * Added JS file * Updated name * Moved flow in to the TargetEndpoint * Updated the search and replace JS * Debugging basePath and subdomain * Debug context * Debugging proxyRequest and targetRequest * WIP * Added timestamp * WIP * WIP * WIP * WIP * WIP * Using target.name in API host name * Removed switch statement * Using a request.url * Removed targetName * Updated JS
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‎proxies/live/apiproxy/policies/javascript.SearchAndReplaceResponse.xml‎

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<Javascript async="false" continueOnError="false" enabled="true" timeLimit="200" name="javascript.SearchAndReplaceResponse">
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<DisplayName>javascript.SearchAndReplaceResponse</DisplayName>
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<Properties/>
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<ResourceURL>jsc://SearchAndReplaceResponse.js</ResourceURL>
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</Javascript>

‎proxies/live/apiproxy/proxies/default.xml‎

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</Step>
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</Request>
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</PreFlow>
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<Flows>
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<Flow name="OptionsPreFlight">
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<Request/>

‎proxies/live/apiproxy/resources/jsc/SearchAndReplaceResponse.js‎

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// An example requestUrl would be https://internal-dev-sandbox.apis.ptl.api.platform.nhs.uk/nwca-48/conditions/
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var requestUrl = context.getVariable("request.url");
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var environmentSubdomain = requestUrl.split("/");
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environmentSubdomain = environmentSubdomain[2];
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environmentSubdomain = environmentSubdomain.split(".");
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environmentSubdomain = environmentSubdomain[0];
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var apiVersion2Host;
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if (environmentSubdomain === "apis" || environmentSubdomain === "prod") {
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apiVersion2Host = "api.service.nhs.uk";
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} else {
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apiVersion2Host = environmentSubdomain + ".api.service.nhs.uk";
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}
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var searchAndReplaceStrings = [
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{
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searchFor: "www.nhs.uk/conditions/",
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replaceWith: apiVersion2Host + "/nhs-website-content/conditions/",
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},
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{
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searchFor: "www.nhs.uk/live-well/",
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replaceWith: apiVersion2Host + "/nhs-website-content/live-well/",
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},
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{
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searchFor: "www.nhs.uk/medicines/",
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replaceWith: apiVersion2Host + "/nhs-website-content/medicines/",
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},
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{
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searchFor: "www.nhs.uk/nhs-services/",
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replaceWith: apiVersion2Host + "/nhs-website-content/nhs-services/",
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},
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{
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searchFor: "www.nhs.uk/pregnancy/",
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replaceWith: apiVersion2Host + "/nhs-website-content/pregnancy/",
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},
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{
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searchFor: "www.nhs.uk/common-health-questions/",
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replaceWith:
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apiVersion2Host + "/nhs-website-content/common-health-questions/",
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},
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{
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searchFor: "www.nhs.uk/mental-health/",
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replaceWith:
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apiVersion2Host + "api.service.nhs.uk/nhs-website-content/mental-health/",
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},
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];
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var responseContent = context.getVariable("response.content");
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var regex;
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for (var i = 0; i < searchAndReplaceStrings.length; i++) {
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var item = searchAndReplaceStrings[i];
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regex = new RegExp(item.searchFor, "g");
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responseContent = responseContent.replace(regex, item.replaceWith);
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}
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context.setVariable("response.content", responseContent);

‎proxies/live/apiproxy/targets/target.xml‎

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</Step>
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</Request>
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</PreFlow>
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<Flows>
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<Flow name="SearchAndReplaceResponse">
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<Description/>
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<Request/>
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<Response>
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<Step>
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<Name>javascript.SearchAndReplaceResponse</Name>
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</Step>
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</Response>
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<Condition/>
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</Flow>
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</Flows>
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<FaultRules>
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<FaultRule name="api_key_invalid">
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<Condition>verifyapikey.VerifyAPIKey.FromHeader.failed</Condition>

‎proxies/sandbox/apiproxy/policies/javascript.SearchAndReplaceResponse.xml‎

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<Javascript async="false" continueOnError="false" enabled="true" timeLimit="200" name="javascript.SearchAndReplaceResponse">
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<DisplayName>javascript.SearchAndReplaceResponse</DisplayName>
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<Properties/>
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<ResourceURL>jsc://SearchAndReplaceResponse.js</ResourceURL>
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</Javascript>

‎proxies/sandbox/apiproxy/resources/jsc/SearchAndReplaceResponse.js‎

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// An example requestUrl would be https://internal-dev-sandbox.apis.ptl.api.platform.nhs.uk/nwca-48/conditions/
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var requestUrl = context.getVariable("request.url");
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var environmentSubdomain = requestUrl.split("/");
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environmentSubdomain = environmentSubdomain[2];
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environmentSubdomain = environmentSubdomain.split(".");
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environmentSubdomain = environmentSubdomain[0];
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var apiVersion2Host;
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if (environmentSubdomain === "apis" || environmentSubdomain === "prod") {
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apiVersion2Host = "api.service.nhs.uk";
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} else {
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apiVersion2Host = environmentSubdomain + ".api.service.nhs.uk";
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}
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var searchAndReplaceStrings = [
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{
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searchFor: "www.nhs.uk/conditions/",
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replaceWith: apiVersion2Host + "/nhs-website-content/conditions/",
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},
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{
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searchFor: "www.nhs.uk/live-well/",
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replaceWith: apiVersion2Host + "/nhs-website-content/live-well/",
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},
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{
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searchFor: "www.nhs.uk/medicines/",
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replaceWith: apiVersion2Host + "/nhs-website-content/medicines/",
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},
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{
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searchFor: "www.nhs.uk/nhs-services/",
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replaceWith: apiVersion2Host + "/nhs-website-content/nhs-services/",
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},
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{
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searchFor: "www.nhs.uk/pregnancy/",
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replaceWith: apiVersion2Host + "/nhs-website-content/pregnancy/",
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},
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{
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searchFor: "www.nhs.uk/common-health-questions/",
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replaceWith:
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apiVersion2Host + "/nhs-website-content/common-health-questions/",
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},
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{
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searchFor: "www.nhs.uk/mental-health/",
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replaceWith:
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apiVersion2Host + "api.service.nhs.uk/nhs-website-content/mental-health/",
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},
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];
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var responseContent = context.getVariable("response.content");
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var regex;
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for (var i = 0; i < searchAndReplaceStrings.length; i++) {
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var item = searchAndReplaceStrings[i];
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regex = new RegExp(item.searchFor, "g");
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responseContent = responseContent.replace(regex, item.replaceWith);
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}
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context.setVariable("response.content", responseContent);

‎proxies/sandbox/apiproxy/targets/sandbox.xml‎

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<TargetEndpoint name="sandbox">
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<Description/>
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<FaultRules/>
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<Flows/>
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<Flows>
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<Flow name="SearchAndReplaceResponse">
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<Description/>
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<Request/>
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<Response>
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<Step>
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<Name>javascript.SearchAndReplaceResponse</Name>
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</Step>
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</Response>
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<Condition/>
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</Flow>
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</Flows>
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<PostFlow name="PostFlow">
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<Request/>
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<Response/>

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