espa_order: Places an Order for the Product IDs
In rLandsat: Landsat Data Complete Download Process

Description Usage Arguments Value Examples

Places an order in espa for the specified product ids and their products. All the products must be available for the product IDs mentioned for a successful order

espa_order(input_ids, product, file_format = "gtiff",
  resampling_method = "cc", order_note = "Order from R",
  projection = "lonlat", standard_parallel_1 = 29.5,
  central_meridian = -96, datum = "nad83", latitude_of_origin = 23,
  standard_parallel_2 = 45.5, false_northing = 0, false_easting = 0,
  host = "https://espa.cr.usgs.gov/api/v1/", username = NULL,
  password = NULL)

`input_ids`	vector of product ids for which order needs to be places
`product`	vector of products required for the product ids mentioned. eg. c("sr", "toa", "sr_ndvi")
`file_format`	the required output format of the order. Default "gtiff". Generally available are: "hdf-eos2": "HDF-EOS2", "envi": "ENVI", "gtiff": "GeoTiff", "netcdf": "NetCDF"
`resampling_method`	the required resampling method for the order. Default "cc". Generally available are: "cc": "Cubic Convolution", "bil": "Bilinear Interpolation", "nn": "Nearest Neighbor"
`order_note`	the note (meta information) for the order
`projection`	the projection of the landsat data for which order is placed. Deafult "lonlat". Avaialble are: "aea" and "lonlat"
`standard_parallel_1`	define numeric value if projection is "aea"
`central_meridian`	define numeric value if projection is "aea"
`datum`	define numeric value if projection is "aea"
`latitude_of_origin`	define numeric value if projection is "aea"
`standard_parallel_2`	define numeric value if projection is "aea"
`false_northing`	define numeric value if projection is "aea"
`false_easting`	define numeric value if projection is "aea"
`host`	the api call host. Default set to espa v1 web api
`username`	default NULL, which fetches the username from the global environment. If defined otherwise, will run the api with the provided details
`password`	default NULL, which fetches the password from the global environment. If defined otherwise, will run the api with the provided details

a list

`order_details`	a list of order id and order status if the order was successful, else blank list
`response`	the API response message
`product_available`	dataframe with product ids and availability
`query`	the json body sent in POST api

## Not run: 
# input the credentials, if not defined earlier
espa_creds("your_espaname", "secret_password")

# saving the product ids as a vector
product_ids = c("LC08_L1TP_148047_20180202_20180220_01_T1",
                "LC08_L1TP_134040_20180115_20180120_01_T1")

# saving the required products as a vector
prod = c("sr", "sr_ndvi")

# placing the order
## returns NULL as wrong credentials provided
result = espa_order(input_ids = product_ids, product = prod, projection = "lonlat")
orderid = result$order_details$orderid # storing the order id for future reference
## End(Not run)