public String getApiEndpoint(String organizationId, String apiId, String apiVersion) {
        StringBuilder gatewayEndpoint = new StringBuilder(this.getGatewayEndpoint());
        StringBuilder apiEndpoint = gatewayEndpoint.append(String.join("/", organizationId, apiId, apiVersion));
        return apiEndpoint.toString();
    }
Builds the api endpoint based on the gateway endpoint data
@param organizationId Organization Id
@param apiId Api Id
@param apiVersion Api version
@return api endpoint
gateway/platforms/vertx3/vertx3/src/main/java/io/apiman/gateway/platforms/vertx3/helpers/EndpointHelper.java