json_exporter VS snmp_exporter

i'm currently trying to import weather data from a FROST-Server into my prometheus instance. I'm trying to use the JSON-Exporter for that purpose. The FROST-Server has a REST-API, that returns JSON data objects.

I find https://github.com/prometheus-community/json_exporter but looks like it does not support oauth2.

But if I were doing this, I would skip SNMP and use the JSON sensor API and the json_exporter. It should be much easier to configure on Windows, since there's no SNMP requirement.

If I understand correctly you need a service that periodically polls your IoT API (you don’t state how frequently - once a day? Once a second? 1,000 times per second? The data velocity is very important when considering how to solve this problem) and then creates a time series of the IoT data. If the IoT data is in JSON format (you don’t specify that) you could use something like this: https://github.com/prometheus-community/json_exporter

It is kind of described here:https://github.com/prometheus/snmp_exporter/issues/405

The SNMP exporter can do lookups. Take a look at this documentation.

wget https://github.com/prometheus/snmp_exporter/releases/download/v0.21.0/snmp_exporter-0.21.0.linux-amd64.tar.gz

You need to find the OSBs for the router, and add those to the explorer. Take a look at this doc: https://github.com/prometheus/snmp_exporter/blob/main/generator/README.md

You can fetch this metrics using the SNMP exporter https://github.com/prometheus/snmp_exporter

As a maintainer of the Prometheus SNMP exporter, and the defacto standard implementation of SNMP in Go, I can tell you exactly how convoluted SNMP is at a protocol and specification level.

Refer to https://github.com/prometheus/snmp_exporter and https://blog.paessler.com/how-to-enable-snmp-on-your-operating-system

For example, you can use unpoller to bring your unifi stuff into the same system as your SNMP data.

SNMP by itself is a rather crude protocol, with values being identified as OID (Object IDs). Those are numerical identifiers. A MIB-File contains the information on how to translate these OIDs into workable data. There is some information on how to feed these files to the exporter located here: https://github.com/prometheus/snmp_exporter/tree/main/generator

Source: I help maintain open source SNMP libraries and SNMP pollers.