72 lines
2.0 KiB
Python
72 lines
2.0 KiB
Python
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"""Serve SourceCred API, for consumption by Observable notebooks.
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Usage:
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python3 ./scripts/serve_api.py [PORT]
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from the SourceCred repository root. Omit the port to try a default, or
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specify port 0 to pick a free port automatically.
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This server binds to `localhost`, which is a loopback address only
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accessible from your machine, not the local network.
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Corresponding Observable code:
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sourcecred = {
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const server = "http://localhost:9009";
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const blob = await fetch(server).then((r) => r.blob());
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const esModule = await require(URL.createObjectURL(blob));
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return esModule.default;
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}
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myGraph = new sourcecred.core.graph.Graph() // e.g.
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This server serves the same response for all requests.
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For best results, run concurrently with `yarn api --watch`. After
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changing SourceCred code, just re-execute the definition of the
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`sourcecred` module in the Observable notebook to live-load the new code
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and update your notebook.
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"""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import os
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import sys
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from wsgiref import simple_server
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_API_FILE = os.path.join("dist", "api.js")
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_DEFAULT_PORT = 9009
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def _app(environ, start_response):
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# This will 500 if the file can't be read, which is fine.
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with open(_API_FILE, "rb") as infile:
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# Re-read the file every time to account for updates.
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contents = infile.read()
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headers = [
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("Access-Control-Allow-Origin", "*"),
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("Content-Type", "application/javascript; charset=UTF-8"),
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("X-Content-Type-Options", "nosniff"),
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]
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start_response("200 OK", headers)
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return (contents,)
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def _main():
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port = int(sys.argv[1]) if len(sys.argv) > 1 else _DEFAULT_PORT
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server = simple_server.make_server("localhost", port, _app)
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print("Serving on port %d" % server.server_port)
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try:
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server.serve_forever()
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except KeyboardInterrupt:
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print()
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pass
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if __name__ == "__main__":
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_main()
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