Ruby/Rails HW: get/post routes, passing parameters into .erb templates, .erb if/else template logic

gistfile1.rb

# 1) Make necessary modifications to a rails project such that an HTML response of "<h1>Hello World</h1>"
#    is returned when hitting the path "/hello_world/index" with a GET request

# 2) Devise a shell utility "curl" command that makes a GET request of the path constructed in #1

# 3) Make necessary modifications to the rails project such that an HTML response of "<h1>Hello POST world</h1>"
#    is returned when hitting the path "/hello_world/index" with a POST request, do not remove any code created in #1

# 4) Devise a shell utility "curl" command that makes a POST request of the path constructed in #2

# 5) Make necessary modifications to the rails project such that an HTML response of "<h1>Hello POST world PLUS</h1>"
#    is returned when hitting the path "hello_world/index" with a POST request AND a payload that contains the key/value pair
#    "plus"/"true", otherwise the HTML response should be "<h1>Hello POST world NO-PLUS</h1>"

# 6) Devise two shell utility "curl" commands that invoke the two different responses described in #5

# 7) Make necessary modifications to the rails project such that the POST request from #5 is able to handle requests
#    for both HTML and JSON renderings.  For the HTML rendering, handle exactly the same as #5.  For the JSON rendering,
#    respond with a JSON object that contains the key/value pair "plus"/<"true" or "false", depending on the value of the
#    payload "plus" value.

# 8) Devise two more shell utility "curl" commands tha tinvoke the two different JSON responses described in #7, also use
#    the two shell utility "curl" commands devised in #6 to prove that they still work

4. curl -X POST "http://localhost:3000/hello/index" -d "plus=hjdgadjhgf"

Hello POST world PLUS

Reni:pause_pray_2 (dick) [2.1.1]$ curl -X POST "http://localhost:3000/hello/index" -d "plus="

Hello POST world PLUS

Reni:pause_pray_2 (dick) [2.1.1]$ curl -X POST "http://localhost:3000/hello/index" -d ""

Hello POST world NO-PLUS