How I start my own server listening requests?

[ahojukka5]

https://app.slack.com/client/T68168MUP/C67910KEH/thread/C67910KEH-1575635707.424100

Have an example of how to create resolvers and start a server listening for requests. Is it possible?

[ahojukka5]

Clearly this is not a bug but more like an enhancement for documentation.

[neomatrixcode]

to raise a server with target you can use https://github.com/codeneomatrix/Diana.jl#server

[neomatrixcode]

the myschema object is subsequently the one that receives the request

query= """
{
neomatrix{
nombre
}
}
"""
result = my_schema.execute(query)

[neomatrixcode]

If you want to have a web server that receives the requests, process them Diana.jl and return the data you can use, for example Merly.jl

https://github.com/codeneomatrix/Merly.jl

[neomatrixcode]

therefore it could have something like:

using Diana
using Merly


schema = Dict(
"query" => "Query"

,"Query"=> Dict(
    "persona"=>Dict("tipo"=>"Persona")
   ,"neomatrix"=>Dict("tipo"=>"Persona")
   )

,"Persona" => Dict(
    "edad"=>Dict("tipo"=>"Int")
   ,"nombre"=>Dict("tipo"=>"String")
  )

)


 resolvers=Dict(
    "Query"=>Dict(
        "neomatrix" => (root,args,ctx,info)->(return Dict("nombre"=>"josue","edad"=>26))
        ,"persona" => (root,args,ctx,info)->(return Dict("nombre"=>"Diana","edad"=>25))
    )
    ,"Persona"=>Dict(
      "edad" => (root,args,ctx,info)->(return root["edad"])
    )
)

my_schema = Schema(schema, resolvers)




server = Merly.app()



#query= """
#{
#neomatrix{
#nombre
#}
#}
#"""

@route POST "/data" begin
  println("body: ",req.body)
  res.headers["Content-Type"]= "application/json"
  my_schema.execute(req.body["query"]) # "{\"data\":{\"neomatrix\":{\"nombre\":\"josue\"}}}"
end

server.start(config=Dict("host" => "127.0.0.1","port" => 8000),verbose=false)

https://codeneomatrix.github.io/Merly.jl/stable/#Dictionary-of-body-1

[neomatrixcode]

At the moment Merly only supports http requests, but in future versions I plan to add more protocols

[neomatrixcode]

there is an implementation of merly for heroku that you can try

https://github.com/codeneomatrix/merly-app
Press the button ' Deploy to heroku'

here I have a test of that application working
https://pruebaju.herokuapp.com/

[neomatrixcode]

Any comments, questions or problems that may arise, you can create an issue and I will try to respond as soon as possible.

see you later.

[ahojukka5]

Maybe this would be good to add to README.md? I'm considering a workflow where all this stuff is written to Jupyter Notebook and then just throw it to Heroku and there is your backend ready. I guess there are already packages making it possible to run notebooks from initialization scripts.

[ahojukka5]

So there would be Procfile, basically (pseudocode)

web: notebook-runner analysis.ipynb

And there you have it: your scientific analysis results which can be queried from some JavaScript frontend deployed e.g. netlify.com or some similar CDN hosting service. I see a huge potential in this.