AddFileToZip adds file to zip including size header stats.

AppendError creates or appends second error to first error.

Contains returns true if an element is present in a iteratee.

Copy copies the exported fields from src to destUsed for copying the default transport.

CreateTMPDIR creates tmp dir at path configured via RUDDER_TMPDIR env var.

 Returns chronological timestamp of the event using the formula timestamp = receivedAt - (sentAt - originalTimestamp).

GetIPFromReq gets ip address from request.

GetMandatoryJSONFieldNames returns all the json field names defined against the json tag for each field.

GetMD5Hash returns EncodeToString(md5 hash of the input string).

GetMD5UUID hashes the given string into md5 and returns it as auuid.

GetOutboundIP returns preferred outbound ip of this machine https://stackoverflow.com/a/37382208.

GetParsedTimestamp returns the parsed timestamp.

GetRudderEventVal returns the value corresponding to the key in the message structure.

GetRudderID return the UserID from the object.

GetTagName gets the tag name using a uuid and name.

IncrementMapByKey starts with 1 and increments the counter of a key.

IsValidUUID will check if provided string is a valid UUID */.

MakeRetryablePostRequest is Util function to make a post request.

ParseRudderEventBatch looks for the batch structure inside event.

PrintMemUsage outputs the current, total and OS memory being used.

ReadLines reads a whole file into memory and returns a slice of its lines.

RecordAppError appends the error occured to error_store.json.

RunWithTimeout runs provided function f until provided timeout d.

TailTruncateStr returns the last `count` digits of a string.

UnZipSingleFile unzips zip containing single file into ouputfile path passed.

ZipFiles compresses files[] into zip at filename.

RFC3339Milli with milli sec precision.

ErrorStoreT : DS to store the app errors.

PerfStats is the class for managing performance stats.

RudderError : to store rudder error.