See announcement Cloudflare Workers Now Support COBOL.
Uses GnuCOBOL 2.2.
To avoid setting up the compiler environment locally, you can use a pre-built Docker image: xtuc/cobweb:
docker run \ -e EM_OUT \ -e EM_ARGS \ -v /tmp/cobol-worker:/root/.emscripten_cache/ \ -v $PWD:/worker \ -v $PWD/build:/build \ xtuc/cobweb \ /worker/src/worker.cob
Compile dependecies:
Compile COBOL to WebAssembly:
The program-id should be worker otherwise the program will fail to compile.
Set the HTTP status code:
CALL "set_http_status" USING "400".
Set the response body to a string:
CALL "set_http_body" USING "something".
Append a string to the response body:
CALL "append_http_body" USING "something".
Get HTTP form values:
WORKING-STORAGE SECTION.
01 THE-VALUE PIC S9(9) BINARY.
PROCEDURE DIVISION.
CALL "get_http_form" USING "key" RETURNING THE-VALUE.
See the example.
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