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Added loading of more than 25 API resources using _links.next.href #5

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Added loading of more than 25 API resources using _links.next.href #5

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47 changes: 45 additions & 2 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,50 @@ var request = require('./lib/utils').request;

module.exports = Client;

/**
* Wrapper for request() to handle continued responses by loading the
* _links.next.href link and appending results to _links.item and
* _embedded.item.
*/
function requestWithContinuation(options, initialResult) {
return request(options)
.then(function (result) {
if (initialResult) {
// Combine loaded results to the initial result
if (initialResult._links && initialResult._links.item && result._links && result._links.item) {
if (!Array.isArray(initialResult._links.item)) {
initialResult._links.item = [initialResult._links.item];
}
if (!Array.isArray(result._links.item)) {
result._links.item = [result._links.item];
}
initialResult._links.item = initialResult._links.item.concat(result._links.item);
}
if (initialResult._embedded && initialResult._embedded.item && result._embedded && result._embedded.item) {
if (!Array.isArray(initialResult._embedded.item)) {
initialResult._embedded.item = [initialResult._embedded.item];
}
if (!Array.isArray(result._embedded.item)) {
result._embedded.item = [result._embedded.item];
}
initialResult._embedded.item = initialResult._embedded.item.concat(result._embedded.item);
}
} else {
// This was the first result
initialResult = result;
}
var nextHref = result._links && result._links.next && result._links.next.href;
if (nextHref) {
// Load next set of results using the next href
options.path = nextHref;
return requestWithContinuation(options, initialResult);
} else {
// Everything is now loaded
return initialResult;
}
});
}

function Client(options) {
this.options = options;
}
Expand Down Expand Up @@ -52,7 +96,7 @@ Client.prototype.listResources = function(restApiId) {
this.options.method = 'GET';
this.options.path = '/restapis/' + restApiId + '/resources';
this.options.body = null;
return request(this.options);
return requestWithContinuation(this.options);
};

Client.prototype.createResource = function(restApiId, resourceParentId, pathPart) {
Expand Down Expand Up @@ -184,4 +228,3 @@ Client.prototype.listDeployments = function(restApiId) {
this.options.body = null;
return request(this.options);
};