mqtt-topic-qaqc_settings_update.md

+# `qaqc_settings_update`
+
+#### version 2
+
+```py
+{
+  "version": 2                 # The configuration version.
+  "project_uuid": <string>     # The UUID of the project the quality config belongs to.
+  "name": <string>             # Name of the qaqc config.
+  "context_window": <string>   # Number or daterange of data to fetch before observations. [1]
+  "functions": [<QFunc>, ...]  # Any number of quality functions.
+}
+
+<QFunc> = {
+  "name": <string>                 # User given alias for the function.
+  "func_id": <string>              # Quality function identifier (aka. saqc method name).
+  "kwargs": <object>               # Arguments to function.
+  "datastreams": [<DStream>, ...]  # Any number of datastream objects.
+}
+    
+# Either sta_thing_id and sta_stream_id must not be null
+# or temporary_name must not be null. 
+# If all three are not null, temporary_name is ignored.
+<DStream> = {
+  "arg_name": <string>              # The argument name in the quality function.
+  "alias": <string>                 # A string alias (aka. speaking name) for this stream [2]
+  "sta_thing_id": <number> | null   # ID of the Thing in the sensor things api (STA).
+  "sta_stream_id": <number> | null  # ID of the Datatream in the sensor things api (STA).
+}
+```
+
+#### version 3
+```py
+{
+  "version": 3                 # The configuration version.
+  "default": <bool>            # flag that indicates if this is the current active default setup 
+  ... # same as version 2 above
+}
+```
+
+[1]: The `context_window` must be either a stringified number (e.g. `"5"`) or a datetime-range string (e.g. `"5d12h10ns"`). For allowed units see the `unit` argument in the docs of [pandas.Timedelta](https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Timedelta.html#pandas-timedelta).
+
+[2]: The alias string is `"T<sta_thing_id>S<sta_stream_id>"` if both are present (neither is `null`), otherwise this is a user-given name.
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