varo@2.1.4

convertItemsToReports(items, [reportType])

convertReportsToMessageContents(reports, [reportType])

convertToEms(messageContents)

isKeyInRange(key, start, end)

parseUtcForDataRange(timeZone, startIso, endIso)

This adaptor exports the following from common:

alterState()

combine()

cursor()

dataPath()

dataValue()

each()

field()

fields()

fn()

fnIf()

lastReferenceValue()

merge()

sourceValue()

Functions

convertItemsToReports

convertItemsToReports(items, [reportType]) ⇒ Operation

Read a collection of EMS-like data records and convert them to a standard EMS report/record format. Systematically separates report properties from record properties.

Param	Type	Default	Description
items	Array		Array of EMS-like JSON objects.
[reportType]	string	"'unknown'"	Optional. Source of the report, e.g., "ems" or "rtmd".

This operation writes the following keys to state:

State Key	Description
data	The converted, EMS-compliant report with records.

Example: Convert data to EMS-compliant data.

convertItemsToReport(
  [
    { "ASER": "BJBC 08 30", "ABST": "20241205T004440Z", "TVC": 5.0 },
    { "ASER": "BJBC 08 30", "ABST": "20241205T005440Z", "TVC": 5.2 },
  ]
);

state.data becomes:
{
  "ASER": "BJBC 08 30",
  records: [
    { "ABST": "20241205T004440Z", "TVC": 5.0 },
    { "ABST": "20241205T005440Z", "TVC": 5.2 },
  ],
}

---

convertReportsToMessageContents

convertReportsToMessageContents(reports, [reportType]) ⇒ function

Converts an EMS-compliant report into Varo-compatible message components.

Returns: function - An operation function that receives state and returns updated message content.

Param	Type	Default	Description
reports	Object		EMS-compliant report objects.
[reportType]	string	"'unknown'"	Optional. Source of the report, e.g., "ems" or "rtmd".

Example

// Convert EMS-compliant reports to Varo message components.
convertReportsToMessageContents(emsReports, "ems");

---

convertToEms

convertToEms(messageContents) ⇒ Operation

Processes EMS data from the provided list of message contents.

Param	Type	Description
messageContents	Array	Array of message content objects.

This operation writes the following keys to state:

State Key	Description
data	The converted, EMS-compliant version of each message contents.

Example: Convert data to EMS-compliant data.

convertToEms(
  [
    {
      metadata: { content: '', filename: '' },
      data: { content: '', filename: '' }
    }
  ]
);

---

isKeyInRange

isKeyInRange(key, start, end) ⇒ boolean

Checks whether the timestamp embedded in a key falls within a UTC datetime range.

Returns: boolean - True if the parsed UTC timestamp is within the range, false otherwise.

Param	Type	Description
key	string	A string key containing a UTC timestamp in the format YYYYMMDDTHHMMSS, following a colon (e.g. "prefix:20250624T101530").
start	Date	The inclusive lower bound of the UTC datetime range.
end	Date	The exclusive upper bound of the UTC datetime range.

---

parseUtcForDataRange

parseUtcForDataRange(timeZone, startIso, endIso) ⇒ UtcRange

Computes the UTC datetime range that corresponds to a given IANA timezone.

Param	Type	Description
timeZone	string	An IANA time zone identifier (e.g. "America/Los_Angeles").
startIso	string	Starting date in ISO format.
endIso	string	Ending date range in ISO format.

---

Interfaces

UtcRange

Properties

Name	Type	Description
wallClock	Date	The current local datetime as it appears on the wall in the specified timezone.
startUtc	Date	UTC start date range (inclusive).
endUtc	Date	UTC end of date range (exclusive).
collectionKeys	Array	Array of wildcard patterns to match UTC dates which correspond with date range (e.g. "20250624").

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