Skip to content

WS discover from kong #115

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
JaninduRSD wants to merge 3 commits into
base: main
Choose a base branch
from
Open

WS discover from kong #115

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
cee0004
WS discover from kong
JaninduRSD Jan 28, 2026
9b238f6
fixing
JaninduRSD Jan 28, 2026
5457d0f
fix
JaninduRSD Jan 28, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 22 additions & 3 deletions ...ponents/kong.gw.manager/src/main/java/org/wso2/kong/client/KongFederatedAPIDiscovery.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -180,6 +180,7 @@ public List<DiscoveredAPI> discoverAPI() {
String cpId = link.getControlPlaneId();
String serviceId = link.getId();
svc = apiGatewayClient.getService(cpId, serviceId);
String apiType = KongAPIUtil.determineAPIType(svc);
if (svc != null && svc.getHost() != null && svc.getProtocol() != null &&
svc.getPort() != null) {
String endpoint = KongAPIUtil.buildEndpointUrl(
Expand All @@ -188,7 +189,16 @@ public List<DiscoveredAPI> discoverAPI() {
svc.getPort(),
svc.getPath()
);
api.setType(apiType);
api.setEndpointConfig(KongAPIUtil.buildEndpointConfigJson(endpoint, endpoint, false));
if (oas != null) {
if ("WS".equals(apiType)) {
api.setAsyncApiDefinition(oas);
api.setTransports("ws,wss");
} else if ("HTTP".equals(apiType)) {
api.setTransports("http,https");
}
}
}
}

Expand Down Expand Up @@ -288,13 +298,22 @@ public List<DiscoveredAPI> discoverAPI() {
api.setInitiatedFromGateway(true);
api.setGatewayVendor(KongConstants.DEFAULT_GATEWAY_VENDOR);
api.setGatewayType(environment.getGatewayType());
api.setType(KongAPIUtil.determineAPIType(svc));

String ApiType = KongAPIUtil.determineAPIType(svc);
String vhost = environment.getVhosts() != null && !environment.getVhosts().isEmpty() ?
environment.getVhosts().get(0).getHost() :
KongConstants.DEFAULT_VHOST;

String apiDefinition = KongAPIUtil.buildOasFromRoutes(svc, routes, vhost);
api.setSwaggerDefinition(apiDefinition);
if ("WS".equalsIgnoreCase(ApiType)) {
api.setTransports("ws,wss");
api.setAsyncApiDefinition(
KongAPIUtil.buildOasFromRoutesForAsync(svc, routes, vhost)
);
} else {
api.setTransports("http,https");
api.setSwaggerDefinition(
KongAPIUtil.buildOasFromRoutes(svc, routes, vhost));
}
String endpoint = KongAPIUtil.buildEndpointUrl(svc.getProtocol(), svc.getHost(), svc.getPort(),
svc.getPath());
api.setEndpointConfig(KongAPIUtil.buildEndpointConfigJson(endpoint, endpoint, false));
Expand Down
81 changes: 81 additions & 0 deletions ...ector/components/kong.gw.manager/src/main/java/org/wso2/kong/client/util/KongAPIUtil.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,19 @@ public static CORSConfiguration kongCorsToWso2Cors(KongPlugin plugin) {
return cors;
}

public static String determineAPIType(KongService service) {
// 1. Check Service Protocol (The most common indicator)
if (service != null && service.getProtocol() != null) {
String proto = service.getProtocol().toLowerCase();
if ("ws".equals(proto) || "wss".equals(proto)) {
return "WS";
} else if ("http".equals(proto) || "https".equals(proto)) {
return "HTTP";
}
}
return null;
}

public static boolean getBoolean(JsonObject obj, String key, boolean def) {
if (obj == null || !obj.has(key) || obj.get(key).isJsonNull()) {
return def;
Expand Down Expand Up @@ -376,6 +389,74 @@ public static String buildOasFromRoutes(KongService svc, List<KongRoute> routes,
return root.toString();
}

public static String buildOasFromRoutesForAsync(KongService svc, List<KongRoute> routes, String vhost) {
JsonObject root = new JsonObject();
root.addProperty("asyncapi", "2.0.0");

JsonObject info = new JsonObject();
info.addProperty("title", svc.getName() != null ? svc.getName() : "kong-service");
info.addProperty("version", "v1");
root.add("info", info);

JsonObject servers = new JsonObject();
JsonObject production = new JsonObject();
production.addProperty("url", "wss://" + vhost);
production.addProperty("protocol", "wss");
servers.add("production", production);
root.add("servers", servers);

JsonObject channels = new JsonObject();
for (KongRoute r : routes) {
List<String> routePaths = (r.getPaths() != null && !r.getPaths().isEmpty()) ?
r.getPaths() : Collections.singletonList("/*");

for (String kongPath : routePaths) {
String oasPath = toOasPath(kongPath);
if (channels.has(oasPath)) {
continue;
}
JsonObject channelItem = new JsonObject();
JsonObject pub = new JsonObject();
pub.addProperty("operationId", safeOpId(r.getName(), "pub", oasPath));
channelItem.add("publish", pub);
JsonObject sub = new JsonObject();
sub.addProperty("operationId", safeOpId(r.getName(), "sub", oasPath));
channelItem.add("subscribe", sub);

// Parameters
Matcher m = Pattern.compile("\\{([A-Za-z_][A-Za-z0-9_-]*)\\}").matcher(oasPath);
JsonObject parameters = new JsonObject();
while (m.find()) {
String pName = m.group(1);
JsonObject pObj = new JsonObject();
JsonObject schema = new JsonObject();
schema.addProperty("type", "string");
pObj.add("schema", schema);
parameters.add(pName, pObj);
}
if (parameters.size() > 0) {
channelItem.add("parameters", parameters);
}
channels.add(oasPath, channelItem);
}
}

if (channels.entrySet().isEmpty()) {
JsonObject channelItem = new JsonObject();
JsonObject pub = new JsonObject();
pub.addProperty("operationId", "pub_default");
channelItem.add("publish", pub);
JsonObject sub = new JsonObject();
sub.addProperty("operationId", "sub_default");
channelItem.add("subscribe", sub);
channels.add("/*", channelItem);
}

root.add("channels", channels);
root.add("components", new JsonObject());
return root.toString();
}

/**
* Convert Kong route path value to an OAS path template. Handles:
* - plain prefixes like "/get" (returned as-is)
Expand Down