SFTP File Management

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#

# Project Name - SFTP FILE MANAGEMENT

# Recipe URL - https://app.lingk.io/a/10932/tf/17559

# Description - # This recipe reads a file from SFTP processes the data and then overwrites the file with new data

# Industry - Higher Ed
# Business Process - Graduate Reporting

# Systems - SFTP
# Connectors - SFTP
# Data Flows - Single Direction
# Connection Type - SFTP to SFTP

# Data Models
#1.

# Add Recipe notes / Change log information here!

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# CONNECTORS specify what data will be pulled into the in-memory database during processing

connectors:

# Configure SFTP credentials in your Environment before running this recipe
  # SFTP Setup - https://help.lingk.io/en/articles/296-sftp-setup-guide

###### Start - SFTP Reader connectors ######

## SFTP connectors 
-
    name: lastRun
    type: sftpReader
    format: csv
    properties:
      path: /automation/lastrun.csv

###### End - SFTP Reader connectors ######

###### Start - SFTP Writer connectors ######

-
    name: runStatus
    type: sftpWriter
    format: csv
    properties:
      path: /automation/lastrun.csv

###### End - SFTP Writer connectors ######

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# Configures the format of the file written to SFTP

## CSV data formats for SFTP Connector
readFormats:
-
    name: csv
    type: delimited
    properties:
      quoteAllFields: true
      delimiter: ','
      header: true

writeFormats:
-
    name: csv
    type: delimited
    properties:
      quoteAllFields: true
      delimiter: ','
      header: true

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# STATEMENTS specify how the data should be processed while in memory

statements:

#******************************************************************** D I S C L A I M E R ***********************************************************************************************
#                                                                                                                                                                                       * 
# Note that in an effort to keep recipes optimized for DPH (Data Processing Hours), print statements should be commented out after development has concluded for a recipe.              *
# For more information on DPH optimization, please visit the following help article - https://help.lingk.io/en/articles/212-minimizing-data-processing-hours-on-the-lingk-platform      *
#                                                                                                                                                                                       * 
#******************************************************************** D I S C L A I M E R ***********************************************************************************************

### GET LAST RUN DATA
  - statement: |
      (currentTimestamp) => SELECT  current_timestamp
  #- statement: print currentTimestamp

- statement: |
      (allData) => SELECT  type,	date,	status FROM lastRun
  #- statement: print allData

- statement: |
      (lastRun) => SELECT  type,	date,	status FROM lastRun where type ="last" and status="complete"
  #- statement: print lastRun

# Through "date_format" function it provides the format needed to the date retrieved
  - statement: |
        (test) => SELECT 
              date_format(from_utc_timestamp(lastRun.date, "America/New_York") , "MM/dd/yyyy hh:mm:ss"),
              date_format(from_utc_timestamp(current_timestamp(), "America/New_York") , "MM/dd/yyyy hh:mm:ss")
              FROM lastRun 
              WHERE type = "last" and status= "complete"
  #- statement: print test

# create two rows of data
  - statement: |
      (currentRun) => 
        SELECT  type,	date,	status FROM lastRun where type ="last" and status="complete"
        UNION
        SELECT  "current" type,	current_timestamp date,	"started" status 
  #- statement: print currentRun

# Write file to SFTP  
  - statement: INSERT currentRun INTO runStatus

# add some time between writes if you want
#  - statement: SLEEP 10000

# create two rows of data
  - statement: |
      (currentRun) => 
        SELECT  "last" type,	current_timestamp date,	"complete" status 
        UNION
        SELECT  "current" type,	current_timestamp date,	"complete" status   
  #- statement: print currentRun

# Write file to SFTP  
  - statement: INSERT currentRun INTO runStatus

# Add more statements to convert, join, aggregrate, transform, and integrate your data