Sample code for 30+ languages & platforms
Ruby

Amazon Cognito - List Users

See more Amazon Cognito Examples

Lists the users in the Amazon Cognito user pool.

Chilkat Ruby Downloads

Ruby
require 'chilkat'

success = false

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

rest = Chilkat::CkRest.new()

authAws = Chilkat::CkAuthAws.new()
authAws.put_AccessKey("AWS_ACCESS_KEY")
authAws.put_SecretKey("AWS_SECRET_KEY")
# Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
authAws.put_Region("us-west-2")
authAws.put_ServiceName("cognito-idp")
# SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws)

# URL: https://cognito-idp.us-west-2.amazonaws.com/
bTls = true
port = 443
bAutoReconnect = true
# Use the same region as specified above.
success = rest.Connect("cognito-idp.us-west-2.amazonaws.com",port,bTls,bAutoReconnect)
if (success != true)
    print "ConnectFailReason: " + rest.get_ConnectFailReason().to_s() + "\n";
    print rest.lastErrorText() + "\n";
    exit
end

# Note: The above code does not need to be repeatedly called for each REST request.
# The rest object can be setup once, and then many requests can be sent.  Chilkat will automatically
# reconnect within a FullRequest* method as needed.  It is only the very first connection that is explicitly
# made via the Connect method.

# The following JSON is sent in the request body.

# {
#     "UserPoolId": "us-west-2_yt6WzO3SA"
# }
# 

json = Chilkat::CkJsonObject.new()
json.UpdateString("UserPoolId","us-west-2_yt6WzO3SA")

rest.AddHeader("Content-Type","application/x-amz-json-1.0")
rest.AddHeader("X-Amz-Target","AWSCognitoIdentityProviderService.ListUsers")
rest.AddHeader("Accept-Encoding","identity")

sbRequestBody = Chilkat::CkStringBuilder.new()
json.EmitSb(sbRequestBody)
sbResponseBody = Chilkat::CkStringBuilder.new()
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody)
if (success != true)
    print rest.lastErrorText() + "\n";
    exit
end

respStatusCode = rest.get_ResponseStatusCode()
print "response status code = " + respStatusCode.to_s() + "\n";
if (respStatusCode != 200)
    print "Response Status Code = " + respStatusCode.to_s() + "\n";
    print "Response Header:" + "\n";
    print rest.responseHeader() + "\n";
    print "Response Body:" + "\n";
    print sbResponseBody.getAsString() + "\n";
    exit
end

jsonResponse = Chilkat::CkJsonObject.new()
jsonResponse.LoadSb(sbResponseBody)

jsonResponse.put_EmitCompact(false)
print jsonResponse.emit() + "\n";

# Sample JSON response:
# (Sample code for parsing the JSON response is shown below)

# Use this online tool to generate parsing code from sample JSON: 
# Generate Parsing Code from JSON

# {
#   "Users": [
#     {
#       "Attributes": [
#         {
#           "Name": "sub",
#           "Value": "1874cf28-00d3-4ac1-a24a-68dcb0cecf09"
#         },
#         {
#           "Name": "email_verified",
#           "Value": "true"
#         },
#         {
#           "Name": "phone_number_verified",
#           "Value": "true"
#         },
#         {
#           "Name": "phone_number",
#           "Value": "+16302581871"
#         },
#         {
#           "Name": "email",
#           "Value": "admin@chilkatsoft.com"
#         }
#       ],
#       "Enabled": true,
#       "UserCreateDate": 1.636404386657E9,
#       "UserLastModifiedDate": 1.636404386657E9,
#       "UserStatus": "FORCE_CHANGE_PASSWORD",
#       "Username": "matt"
#     },
#     {
# 	. . .
#     }
#   ]
# }

i = 0
count_i = jsonResponse.SizeOfArray("Users")
while i < count_i
    jsonResponse.put_I(i)
    Enabled = jsonResponse.BoolOf("Users[i].Enabled")
    UserCreateDate = jsonResponse.stringOf("Users[i].UserCreateDate")
    UserLastModifiedDate = jsonResponse.stringOf("Users[i].UserLastModifiedDate")
    UserStatus = jsonResponse.stringOf("Users[i].UserStatus")
    Username = jsonResponse.stringOf("Users[i].Username")
    j = 0
    count_j = jsonResponse.SizeOfArray("Users[i].Attributes")
    while j < count_j
        jsonResponse.put_J(j)
        Name = jsonResponse.stringOf("Users[i].Attributes[j].Name")
        Value = jsonResponse.stringOf("Users[i].Attributes[j].Value")
        j = j + 1
    end
    i = i + 1
end