Ruby

Firebase PUT - Writing Data

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Demonstrates how to PUT new data to a Firebase JSON database. The data used in this example is at Chilkat Firebase Pigs Database, and is shown here:

Ruby

require 'chilkat'

success = false

# Demonstrates how to PUT new data to a Firebase JSON database.

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# This example assumes a JWT authentication token, if required, has been previously obtained.
# See Get Firebase Access Token from JSON Service Account Private Key for sample code.

# Load the previously obtained Firebase access token into a string.
fac = Chilkat::CkFileAccess.new()
accessToken = fac.readEntireTextFile("qa_data/tokens/firebaseToken.txt","utf-8")
if (fac.get_LastMethodSuccess() != true)
    print fac.lastErrorText() + "\n";
    exit
end

rest = Chilkat::CkRest.new()

# Make the initial connection (without sending a request yet).
# Once connected, any number of requests may be sent.  It is not necessary to explicitly
# call Connect before each request.  
success = rest.Connect("chilkat.firebaseio.com",443,true,true)
if (success != true)
    print rest.lastErrorText() + "\n";
    exit
end

authGoogle = Chilkat::CkAuthGoogle.new()
authGoogle.put_AccessToken(accessToken)
rest.SetAuthGoogle(authGoogle)

# Chilkat's sample data (pig-rescue data) is publicly readable at: https://chilkat.firebaseio.com/.json
# This data is publicly readable, but not writable.  You'll need to 
# run against your own database..

# Generate a new push ID.
prng = Chilkat::CkPrng.new()
pushId = prng.firebasePushId()

# We're going to add a new pig with just the name.
pigRecord = Chilkat::CkJsonObject.new()
pigRecord.AppendString("name","William")

path = Chilkat::CkStringBuilder.new()
path.Append("/pig-rescue/animal/")
path.Append(pushId)
path.Append(".json")

# The string content of the last arg passed is  {"name":"William"} 
jsonResponse = rest.fullRequestString("PUT",path.getAsString(),pigRecord.emit())
if (rest.get_LastMethodSuccess() != true)
    # Something happened in the communications (either no request was sent, or no response was received.
    # (The Chilkat REST API also has lower-level methods where an app can send the request in one call,
    # and then receive the response in another call.)
    print rest.lastErrorText() + "\n";
    exit
end

# Check the response status code.   A 200 response status indicates success.
if (rest.get_ResponseStatusCode() != 200)
    print rest.responseStatusText() + "\n";
    print jsonResponse + "\n";
    print "Failed." + "\n";
    exit
end

print jsonResponse + "\n";
print "Success." + "\n";

# Note: In many of the Chilkat examples, you may notice strange ways
# of doing something that should be simpler and shorter.  For example,
# building the path (above) could've been written differently,
# with some simple string concatenation.
# 
# The reason is that the Chilkat examples are written in a 
# proprietary "example code" scripting language,
# and then automatically generated to each of the different programming
# languages you see on example-code.com.  The code generation is
# limited in what it can do.  For example, string concatentation
# is not yet a feature of the "example code" scripting language (as of May 2016), 
# and therefore you won't see the use of a programming language's string
# concatentation operators in any example.  
#