keii.dev
🧚 A practical web framework for Gleam
Logging
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README.md
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README.md
···
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- [Working with other formats](https://github.com/lpil/wisp/tree/main/examples/4-working-with-other-formats)
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- [Using a database](https://github.com/lpil/wisp/tree/main/examples/5-using-a-database)
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- [Serving static assets](https://github.com/lpil/wisp/tree/main/examples/6-serving-static-assets)
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- [Logging](https://github.com/lpil/wisp/tree/main/examples/7-logging)
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API documentation is available on [HexDocs](https://hexdocs.pm/wisp/).
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examples/7-logging/README.md
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examples/7-logging/README.md
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# Wisp Example: Logging
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```sh
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gleam run # Run the server
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gleam test # Run the tests
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```
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This example shows how to route requests to different handlers based on the
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request path and method.
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This example is based off of the ["routing" example][routing], so read that
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one first. The additions are detailed here and commented in the code.
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[hello]: https://github.com/lpil/wisp/tree/main/examples/1-routing
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### `app/router` module
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The `handle_request` function now logs messages depending on the request.
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### Other files
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No changes have been made to the other files.
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examples/7-logging/gleam.toml
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examples/7-logging/gleam.toml
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examples/7-logging/src/app.gleam
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examples/7-logging/src/app.gleam
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import gleam/erlang/process
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import mist
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import wisp
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import app/router
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pub fn main() {
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wisp.configure_logger()
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let secret_key_base = wisp.random_string(64)
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let assert Ok(_) =
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wisp.mist_handler(router.handle_request, secret_key_base)
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|> mist.new
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|> mist.port(8000)
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|> mist.start_http
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process.sleep_forever()
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}
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examples/7-logging/src/app/router.gleam
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examples/7-logging/src/app/router.gleam
···
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import wisp.{Request, Response}
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import gleam/http.{Get, Post}
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import app/web
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// Wisp has functions for logging messages using the BEAM logger.
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//
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// Messages can be logged at different levels. From most important to least
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// important they are:
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// - emergency
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// - alert
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// - critical
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// - error
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// - warning
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// - notice
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// - info
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// - debug
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//
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pub fn handle_request(req: Request) -> Response {
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use _req <- web.middleware(req)
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case wisp.path_segments(req) {
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[] -> {
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wisp.log_debug("The home page")
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wisp.ok()
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}
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["about"] -> {
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wisp.log_info("They're reading about us")
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wisp.ok()
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}
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["secret"] -> {
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wisp.log_error("The secret page was found!")
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wisp.ok()
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}
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_ -> {
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wisp.log_warning("User requested a route that does not exist")
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wisp.not_found()
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}
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}
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}
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examples/7-logging/src/app/web.gleam
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examples/7-logging/src/app/web.gleam
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import wisp
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pub fn middleware(
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req: wisp.Request,
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handle_request: fn(wisp.Request) -> wisp.Response,
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) -> wisp.Response {
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let req = wisp.method_override(req)
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use <- wisp.log_request(req)
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use <- wisp.rescue_crashes
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use req <- wisp.handle_head(req)
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handle_request(req)
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}
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examples/7-logging/test/app_test.gleam
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examples/7-logging/test/app_test.gleam
···
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import gleeunit
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import gleeunit/should
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import wisp/testing
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import app/router
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pub fn main() {
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gleeunit.main()
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}
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pub fn get_home_page_test() {
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let request = testing.get("/", [])
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let response = router.handle_request(request)
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response.status
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|> should.equal(200)
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}
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manifest.toml
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manifest.toml
···
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packages = [
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{ name = "exception", version = "1.0.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "exception", source = "hex", outer_checksum = "71F00057D38ADB03BBCCD0E3B07AB2C236BD49DBA7E7611A9DADBD1E26C9F53D" },
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{ name = "gleam_bitwise", version = "1.3.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_bitwise", source = "hex", outer_checksum = "E2A46EE42E5E9110DAD67E0F71E7358CBE54D5EC22C526DD48CBBA3223025792" },
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{ name = "gleam_crypto", version = "0.4.0", build_tools = ["gleam"], requirements = ["gleam_stdlib", "gleam_bitwise"], otp_app = "gleam_crypto", source = "hex", outer_checksum = "42429CED0F838B40014E1C017B0495C46C311D08035D2C2D43B749B91A4374F6" },
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{ name = "gleam_crypto", version = "0.4.0", build_tools = ["gleam"], requirements = ["gleam_bitwise", "gleam_stdlib"], otp_app = "gleam_crypto", source = "hex", outer_checksum = "42429CED0F838B40014E1C017B0495C46C311D08035D2C2D43B749B91A4374F6" },
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{ name = "gleam_erlang", version = "0.21.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_erlang", source = "hex", outer_checksum = "A502A9DE61CEBC94B9D55A1FD41D0EA735A82D74E926E3D874CBA69F3705BDB2" },
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{ name = "gleam_http", version = "3.5.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_http", source = "hex", outer_checksum = "FAE9AE3EB1CA90C2194615D20FFFD1E28B630E84DACA670B28D959B37BCBB02C" },
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{ name = "gleam_json", version = "0.6.0", build_tools = ["gleam"], requirements = ["thoas", "gleam_stdlib"], otp_app = "gleam_json", source = "hex", outer_checksum = "C6CC5BEECA525117E97D0905013AB3F8836537455645DDDD10FE31A511B195EF" },
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{ name = "gleam_otp", version = "0.6.0", build_tools = ["gleam"], requirements = ["gleam_stdlib", "gleam_erlang"], otp_app = "gleam_otp", source = "hex", outer_checksum = "E31B158857E3D2AF946FE6E90E0CB21699AF226F4630E93FBEAC5DB4515F8920" },
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{ name = "gleam_json", version = "0.6.0", build_tools = ["gleam"], requirements = ["gleam_stdlib", "thoas"], otp_app = "gleam_json", source = "hex", outer_checksum = "C6CC5BEECA525117E97D0905013AB3F8836537455645DDDD10FE31A511B195EF" },
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{ name = "gleam_otp", version = "0.6.0", build_tools = ["gleam"], requirements = ["gleam_erlang", "gleam_stdlib"], otp_app = "gleam_otp", source = "hex", outer_checksum = "E31B158857E3D2AF946FE6E90E0CB21699AF226F4630E93FBEAC5DB4515F8920" },
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{ name = "gleam_stdlib", version = "0.30.1", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "704258528887F95075FFED7AAE1CCF836A9B88E3AADA2F69F9DA15815F94A4F9" },
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{ name = "gleeunit", version = "0.11.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "1397E5C4AC4108769EE979939AC39BF7870659C5AFB714630DEEEE16B8272AD5" },
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{ name = "glisten", version = "0.8.1", build_tools = ["gleam"], requirements = ["gleam_otp", "gleam_erlang", "gleam_stdlib"], otp_app = "glisten", source = "hex", outer_checksum = "B156D92DD8508D05C7E2D54FA6EB4EC57510E70F1B156F40B0FF1589CE72095D" },
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{ name = "mist", version = "0.13.1", build_tools = ["gleam"], requirements = ["glisten", "gleam_erlang", "gleam_http", "gleam_stdlib"], otp_app = "mist", source = "hex", outer_checksum = "178EDF5F396570DD53BE2A94C8F9759072093DACB81B62CD47A620B961DB2F2D" },
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{ name = "glisten", version = "0.8.1", build_tools = ["gleam"], requirements = ["gleam_otp", "gleam_stdlib", "gleam_erlang"], otp_app = "glisten", source = "hex", outer_checksum = "B156D92DD8508D05C7E2D54FA6EB4EC57510E70F1B156F40B0FF1589CE72095D" },
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{ name = "mist", version = "0.13.1", build_tools = ["gleam"], requirements = ["glisten", "gleam_http", "gleam_erlang", "gleam_stdlib"], otp_app = "mist", source = "hex", outer_checksum = "178EDF5F396570DD53BE2A94C8F9759072093DACB81B62CD47A620B961DB2F2D" },
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{ name = "simplifile", version = "0.1.10", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "simplifile", source = "hex", outer_checksum = "263B7C7F4B29263555DEA2D30BA918425A27120CDD1E1352744EAB4D56CE01CE" },
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{ name = "thoas", version = "0.4.1", build_tools = ["rebar3"], requirements = [], otp_app = "thoas", source = "hex", outer_checksum = "4918D50026C073C4AB1388437132C77A6F6F7C8AC43C60C13758CC0ADCE2134E" },
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]