# API - Flows stopped due to missing node types

**URL:** <https://discourse.nodered.org/t/api-flows-stopped-due-to-missing-node-types/1780>\
**Category:** Core Development\
**Created:** [24 July 2018 11:53 UTC](https://discourse.nodered.org/t/api-flows-stopped-due-to-missing-node-types/1780 "2018-07-24T11:53:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gekko68](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gekko68/32/1334_2.png) [@gekko68](https://discourse.nodered.org/u/gekko68)\
**Post date:** [24 July 2018 11:53 UTC](https://discourse.nodered.org/t/api-flows-stopped-due-to-missing-node-types/1780/1 "2018-07-24T11:53:20Z")

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Guys,  
we have hundreds of nodes developed . Sometimes the installation doesn't work out of the box. As our application depends on a working system we need to do some smoke tests. Therefore the questions is whether there is an API or an Event which keeps the overall state of the installed nodes. That way we know whether everything was installed smoothly. The log basically has all information about missing nodes types

Cheers, Mike

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/c/c384db4ba3b64c0a4f12967bafb18d9a7d27b2d2.jpg)

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [24 July 2018 12:21 UTC](https://discourse.nodered.org/t/api-flows-stopped-due-to-missing-node-types/1780/2 "2018-07-24T12:21:39Z")

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You can get a list of the installed nodes via the `/nodes` admin endpoint - [https://nodered.org/docs/api/admin/methods/get/nodes/](https://nodered.org/docs/api/admin/methods/get/nodes/)

Just make sure you set the `Accept` http header to `application/json`