Apigee Proxy Template Replacer

This template replacer will take a JSON config alongside an Apigee API proxy template, and create a final API proxy with the config values replaced.

Example

var replacer = require("apigee-proxy-template-replacer");

var template_dir = "./proxy_templates/oauth2";
var answers_path = "./json_configs/answerExample.json";


replacer.createProxy(template_dir,answers_path, function(err, data){
    if(err){
        console.log(err);
    }else{
        //data returned as zip file
        //save to disk or use for uploading to a server
    }
});

Detailed Documentation

There are two libraries, lib/proxy-replacer.js and lib/proxy-generator.js. The replacer interacts directly with the XML to replace the sections and variables. Please see API Proxy Template Replacer below for more details. The generator leverages the replacer and will write the finished template to an output folder (currently output).

The template directory provided should point to an Apigee API proxy like the example examples/proxy_templates/oauth2/.

API Proxy Template Replacer

This replacer will read a json file with named key value pairs and alter an Apigee Edge API Proxy that contains template directives. Based on directives(detailed below) in the bundle's XML files, the replacer will utilities will remove and/or configure the API proxy.

For examples, please see the json config located in ./examples/json_configs directory and example usage of the replacer utilities in ./examples/app.js.

Remove complete sections from XML

    <!--START grantTypes==pw -->
    <Flow name="Accesstoken-PW">
        <Description>Password Grant</Description>
    </Flow>
    <!--END grantTypes==pw -->

If the answers json does not have a key named grantTypes with value of "pw" or ["pw"], this section will get removed when calling the with the cleanTemplateXml(xml, answersJson) method.

Replace variables located in XML

<ProxyEndpoint>
    <Description>__apiDescription__</Description>
</ProxyEndpoint>

Currently variable identifiers for the replacer are __, a double underscore. Use the following method to replace any variables: replaceTemplateValues(cleanedXml,answersJson). This results in:

<ProxyEndpoint>
    <Description>My Description that was replaced.</Description>
</ProxyEndpoint>

Replace snippets of XML in a loop

If you have an answer which contains an array (single of multidimensional), you can use the following syntax in your template:

<Attributes>
    <!--FOREACH ccTokenAttributes -->
    <Attribute name="__item[0]__" ref="__item[1]__">__item[2]__</Attribute>
    <!--FOREACH ccTokenAttributes -->
</Attributes>

The above means to replace the item[i] values in the XML snippet for each of the values in the ccTokenAttributes answer field. In this case, ccTokenAttributes is a multi-dimensional array.

TODO

Provide documentation inline with the proxy template, explaining each of the template functions.
Build a couple example templates and answer configuration JSON files.
Revamp the remove section logic to parse template and answers better for doing nested array check on existance, containment, equality, etc.

apigeecs/apigee-proxy-template-replacer