No implicit conversion of String into Integer (TypeError)?

Write as

@systemid = @getsystemid[0]['id']

Your @getsystemid is not a Hash, it is an Array of Hash. @getsystemid[0] will give you the intended hash {"id"=>1000010466, "name"=>"cfme038", "last_checkin"=>#}. Now you can use Hash#[] method to access the value of the hash by using its keys.

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