Nr-service

Nebulas rank offline service

Nebulas node dependency

Compile and install nebulas, tutorial here.

Development environment dependency

• Boost version >= 1.67.0
• LLVM/Clang++ version >= 6.0.0
• Python version 2.7
• Flask version >= 1.0.2

Arangodb dependency

• Arangodb version >= 3.3.14
• Arangodb c++ driver fuerte, branch makeFuerteGreateAgain
• Arangodb serialization and storage format, velocypack
• Arangodb python driver, python-arango
• Http-parser version >= 2.8.1

Build

$ cd /path/to/nr-service
$ mkdir build && cd build
$ cmake .. && make

Run

• Run nebulas node, sync blocks from genesis block to the latest
• Run arangodb, build arangodb collections, script in $PATH_TO_NR-SERVICE/python/graph/arango_graph.py
• Run transaction_writer and account_writer in directory $PATH_TO_NR-SERVICE/cpp/bin, to build transaction graph
• Run nr in the same directory

Query

• Query transaction by block height, curl -s "http://localhost:6000/transaction?start_block=400100&end_block=400200"
• Query transaction by address, curl -s "http://localhost:6000/transaction?address=n1Q6JhXKWXCkyvoqymN4LPd6J1tentyKRVF"
• Query account by address, curl -s "http://localhost:6000/account?address=n1Q6JhXKWXCkyvoqymN4LPd6J1tentyKRVF"
• Query nebulas rank by date, curl -s "http://localhost:6000/nr?date=20180620"