How to get total power consumption data via GNMI?

[rc-dev]

I have been trying to collect telemetry data and I am getting a hard time obtaining power data.
Here's a sample telemetry collector config (telegraf):

```

[[inputs.gnmi]]

name_prefix = "app.company.network.device."

addresses = ["${HOST_ADDRESS}"]

username = "${USERNAME}"

password = "${PASSWORD}"

encoding = "json_ietf"

redial = "10s"

[[inputs.gnmi.subscription]]

name = "ps"

origin = "openconfig"

path = "/components/component/power-supply/state"

subscription_mode = "sample"

sample_interval = "60s"

```

According to YANGSUITE, I should get Datatype:`ieeefloat32` in Basetype:`binary`, but for some reason I get unreadable values like this:

```

app.company.network.device.ps,

device=DEV-SW-01,

host=dev-server,

name=PowerSupply1/B,

telemetry_source=entec-network openconfig_platform_psu:input_voltage="Q1HAAA==",

openconfig_platform_psu:output_current="P3YEGQ==",

openconfig_platform_psu:output_voltage="QmF3zw==",

openconfig_platform_psu:output_power="QlMAAA==",

openconfig_platform_psu:enabled=true,

openconfig_platform_psu:capacity="RDLAAA==",

openconfig_platform_psu:input_current="Psk3TA==" 1709529211201225000

```

Can anyone tell my what kind of encoding is this?
Other yang models sends the data correctly, but for `openconfig-platform-psu` the data is somehow encoded?
It's not base64, I already tried to decode it.
Can anyone shed some light please?

For Additional Info:

SW: `C9300-48UXM`

IOS-XE ver: `17.09.04a`

[Torbjørn · Accepted solution]

These values are base64 encoded ieeefloat32 as described. If you decode from base64 to binary, you can quite easily convert it to ieeefloat32. For example:

Base64: QmF3zw== (output voltage)

Binary: 01000010 01100001 01110111 11001111

Float32: 56.367

[bigevilbeard · Accepted solution]

Base64 encoding is sometimes used for binary data transmission, it's not the default for GNMI with protobuf encoding as far as i recall. Try your telegraf configuration using the encoding parameter with a value "binary" in the [[inputs.gnmi]] section, this will tell GNMI to retrieve the data in raw binary format here.

Hope this helps.