Add example db connection string to usage
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@@ -47,7 +47,7 @@ data AppConfig = AppConfig {
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argParser :: Parser AppConfig
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argParser :: Parser AppConfig
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argParser = AppConfig
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argParser = AppConfig
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<$> argument str (help "(REQUIRED) database connection string" <> metavar "DB_URL")
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<$> argument str (help "(REQUIRED) database connection string, e.g. postgres://user:pass@host:port/db" <> metavar "DB_URL")
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<*> strOption (long "anonymous" <> short 'a' <> help "(REQUIRED) postgres role to use for non-authenticated requests" <> metavar "ROLE")
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<*> strOption (long "anonymous" <> short 'a' <> help "(REQUIRED) postgres role to use for non-authenticated requests" <> metavar "ROLE")
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<*> strOption (long "schema" <> short 's' <> help "schema to use for API routes" <> metavar "NAME" <> value "public" <> showDefault)
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<*> strOption (long "schema" <> short 's' <> help "schema to use for API routes" <> metavar "NAME" <> value "public" <> showDefault)
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<*> option auto (long "port" <> short 'p' <> help "port number on which to run HTTP server" <> metavar "PORT" <> value 3000 <> showDefault)
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<*> option auto (long "port" <> short 'p' <> help "port number on which to run HTTP server" <> metavar "PORT" <> value 3000 <> showDefault)
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