libRETS npm package

[nationalassociationofrealtors]

libRETS npm package

[mlesswing]

Each platform needs to have the Javascript version of the library compiled for it, so making a generic NPM will be tricky as you have found out.

I also have a Node.js project that uses libRETS. I will be sharing soon to translate RESO Web API requests into RETS calls. I used libRETS to do the RETS part. You will be able to "hack" this to answer your question. Unfortunately, I am still a few weeks away from release. How can I help you in the meantime? I put librettos.node in a [root]/lib directory and call it like this (but you probably know how it works):
…
var librets = require(__dirname + '/../lib/librets.node');
…
var session = new librets.RetsSession( {RETS_SERVER_LOGIN_URL} );
session.SetRetsVersion(librets.RETS_1_8_0);
if (!session.Login( {NAME}, {PASSWORD} )) {
var request = session.CreateSearchRequest( {TYPE}, {CLASS}, {FILTER} );
request.SetStandardNames(true);
request.SetSelect(req.query.$select);
request.SetLimit(librets.SearchRequest.LIMIT_DEFAULT);
request.SetOffset(librets.SearchRequest.OFFSET_NONE);
request.SetCountType(librets.SearchRequest.RECORD_COUNT_AND_RESULTS);
request.SetFormatType(librets.SearchRequest.COMPACT);
var results = session.Search(request);
}
…

Mark Lesswing
[email protected]

On Feb 4, 2016, at 12:06 PM, Brian Riviere [email protected] wrote:

Would anyone be able to give me suggestion on how to a create npm module so I can use in in my nodejs application?

thanks

Brian

—
Reply to this email directly or view it on GitHub.

[briviere]

Right now my next challenge is getting it to work on Heroku. It appears that I will have to create a custom build package https://devcenter.heroku.com/articles/buildpacks#officially-supported-buildpacks unless there is one already created?

Brian

[briviere]

So I'm trying to get libRets working on the Heroku.

I have install boost 1.54 buildpack and nodejs build packs:

heroku buildpacks
=== therightrealty Buildpack URLs

1. heroku/nodejs
2. https://github.com/briviere/heroku-buildpack-boost.git

The boost libs appear to installed but I keep getting an error message saying it cant find the following boost 1.54.0 file:

2016-02-19T21:42:41.671472+00:00 app[web.1]: Error: libboost_filesystem.so.1.54.0: cannot open shared object file: No such file or directory

I'm not exactly sure if boost is install correctly, the ls command does return a list of boost files:

heroku run ls /usr/lib/x86_64-linux-gnu/libboos_.so_1.54*

Running ls /usr/lib/x86_64-linux-gnu/libboost_date_time.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_iostreams.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_prg_exec_monitor.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_python-py27.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_python-py34.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_regex.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_serialization.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_system.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_unit_test_framework.so.1.54.0 /usr/lib/x86_64-linux-gnu/libboost_wserialization.so.1.54.0 on therightrealty... up, run.1922
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_date_time.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_iostreams.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_prg_exec_monitor.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_python-py27.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_python-py34.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_regex.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_serialization.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_system.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_unit_test_framework.so.1.54.0: No such file or directory
ls: cannot access /usr/lib/x86_64-linux-gnu/libboost_wserialization.so.1.54.0: No such file or directory

[jazzklein]

That says that the files don't exist, or you don't have the permission to access them.

[briviere]

I was finally able to get libRets node.js module working on a Heroku dyno. I had to do the following to get libBoost installed correctly.

1. Add the following buildpack to you heroku project:

heroku buildpacks:add https://github.com/heroku/heroku-buildpack-apt --index 1

1. Create an Aptfile in your project base directory with the following:

libstdc++-4.8-dev
libboost1.42-dev
libboost1.46-dev
libboost1.48-dev
libboost1.49-dev
libboost1.50-dev
libboost1.52-dev
libboost1.53-dev
libboost-atomic1.54-dev
libboost-chrono1.54-dev
libboost-context1.54-dev
libboost-coroutine.54-dev
libboost-date-time1.54-dev
libboost-exception1.54-dev
libboost-filesystem1.54-dev
libboost-graph-parallel1.54-dev
libboost-graph1.54-dev
libboost-iostreams1.54-dev
libboost-locale1.54-dev
libboost-log.54-dev
libboost-math1.54-dev
libboost-mpi-python1.54-dev
libboost-mpi1.54-dev
libboost-program-options1.54-dev
libboost-python1.54-dev
libboost-random1.54-dev
libboost-regex1.54-dev
libboost-serialization1.54-dev
libboost-signals1.54-dev
libboost-system1.54-dev
libboost-test1.54-dev
libboost-thread1.54-dev
libboost-timer1.54-dev
libboost-wave1.54-dev
libboost1.54-doc
libboost1.54-tools-dev
libmpfrc++-dev
libntl-dev

1. Create a .buildpacks and include your additional buildpacks. I only have one I needed to include:

   https://github.com/heroku/heroku-buildpack-nodejs

2. commit and push.

Brian