Categorygithub.com/rtp-gcp/go-testyprojectss1.7_web_server7ex1.12
package
0.0.0-20241226173335-507e70a7b9e1
Repository: https://github.com/rtp-gcp/go-testy.git
Documentation: pkg.go.dev
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# README

section 1.7 server

A package in a complete differt root dir and in github, and we import from github implementation.

This uses the lissajous in github aka ~/progs/lissajous

Make sure you don't have these files around before you do do the go mod init.

  • go.sum
  • go.mod
  • had to perform go clean -modcache
    • This removes ~/go/pkg/mod/cache/download/github.com/netskink/lissajous
    • This removes ~/go/pkg/mod/github.com/netskink/[email protected]
  • We also deleted a lissajous file in ~/go/bin/lissajous.

TODO: We had some issue where it was not using the latest version in github. Our original code had a bug, we fixed it and each time it was doing mod tidy, it was downloading the old version. When we finally got it to work, we deleted the go.sum file and the package in ~/go/pkg/mod/github. Deleting the one in cache/download did not resolve the problem. Once, we also did the go clean -modcache command it would then pull the latest code from github. However, afterwards, we made additional mods and despite repeating this workflow, it continued to use the same code and did not pull from github as it did when it worked. OMG, once we deleted the bin file entry, then it would fetch the latest source from git.

However, we attempted to do this once more and force an error and it did not fetch from git the latest code.?/?!! The file that was ~/go/bin/lissajous was not recreated as a result of building this source was not recreated. Perhaps it was put there a long time ago as part of a go install .?

TODO: Punt for now and figure out versions. COMPLETE: 20240707 Version fix below completed this objective

TODO: Need to figure out ow to do this via go commands. COMPLETE: 20240707 Version fix below completed this objective

other notes

This shows the current env settings used by go

$ go env

This cleans the ~/go/pkg/ folder contents.

$ go clean -modcache

go mod init st1.7_web_server6

This will add the lisajous module from github

go mod tidy

go vet
go run .

Fixing via versions

For the lissajous module, tag via:

$ git tag v1.0.0
$ git push origin v1.0.0

Then for this code (the server code which uses the module)

  1. go mod init github.com/netskink/st1.7_web_server7ex12
  2. go get github.com/netskink/[email protected]
  3. go mod tidy

When we did this method, it reliably pulled the code from github each time we did a push.

open browser to http://localhost:8000

Work for ex 1.12

Modify the server to read parameter values from the URL.

Example

specify 20 cycles instead of default of 5.

http://localhost:8000/?cycles=20
  • Use strconv.Atoi function to convert the string parameter into an integer.
    • go doc strconv.Atoi