[erlang-questions] How to expose an Erlang module to external apps?

[Yash Ganthe]

Hi,

An Erlang module we are developing needs to be invoked from various applications written in different languages like .NET, Java, Perl, etc. What options do we have for exposing our module to teh external world? The other apps may possibly run on computers different than the one that runs the Erlang VM.

Thanks
Yash

[Gleb Peregud]

You can use multitude of options:
1. Ports
2. C-nodes
3. TCP communication
4. UDP communication
5. etc.

For TCP communication you can use multiple protocols:
1. Raw TCP sockets with length-prefixed packets
2. HTTP
3. XMPP
4. AMPQ
5. ZeroMQ
6. And many-many-many more

For TCP communication you can use different serialization options:
1. Erlang Binary Term format
2. BERT
3. MsgPack
4. Protocol Buffers
5. JSON
6. And many-many-many more

There are very many different options. Without some more details about
your needs it's hard to select one.

Best regards,
Gleb Peregud
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