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kataras/iris

The fastest HTTP/2 Go Web Framework. New, modern and easy to learn. Fast development with Code you control. Unbeatable cost-performance ratio :rocket: · Go · 663 source files

Analyzed at 7bedaf55a0 on 2026-08-30. 208 documented errors.

Code / Message	Type	Severity	Tags
compress: response will not be compressed	error_code	info	http, compression, iris, encoding
compress: request is not compressed	error_code	info	http, compression, request-body, encoding
compress: unsupported compression	error_code	warning	http, compression, content-negotiation, encoding
not found	error_code	warning	key-value, not-found, context, sentinel-error
empty form	validation	info	form, request-body, validation, iris
empty form field	validation	error	form-data, http, request-parsing, iris
precondition failed	error_code	error	http, conditional-request, caching, etag, iris
invalid arguments	error_code	error	reflection, arguments, programming-error, iris
not supported	error_code	warning	authentication, user-interface, capability-detection, compression, iris
errors joined from param parser: strings.Join(p.errors, "\n"	exception	warning	routing, path-parameters, validation, iris
parameter is not alphabetical	validation	warning	routing, validation, regex, iris
parameter is not a file	validation	warning	routing, validation, files, iris
parameter is not a valid weekday	validation	warning	routing, validation, time, iris
origin not allowed	error_code	warning	cors, http, security, iris
no trailing path parameter found	exception	error	mvc, routing, wildcard, iris
not implemented yet	error_code	info	sessions, database, not-implemented, iris
session not found	error_code	warning	sessions, storage, not-found, iris
directoryPath is empty	validation	error	sessions, badger, configuration, iris
path is required	validation	error	sessions, boltdb, configuration, iris
redis: already closed	error_code	error	redis, sessions, lifecycle
key not found	error_code	info	redis, sessions, key-not-found
unexpected mime type received: %s / current implementation c	exception	error	http-client, content-type, binding
invalid duration	validation	error	json, duration, unmarshal
invalid	error_code	error	json, validation, sentinel-error
invalid duration	validation	error	json, duration, unmarshal
auth: signin: %w	exception	error	auth, signin, providers
auth: signin: no provider	exception	error	auth, configuration, providers
access: %w	error_code	error	auth, jwt, keystore
refresh: %w	error_code	error	jwt, signing, refresh-token, key-material
auth: verify: %w	error_code	error	jwt, token-verification, expired-token
auth: refresh: disabled	error_code	error	jwt, refresh-token, configuration
auth: refresh: %w	error_code	error	jwt, refresh-token, expired-token
auth: signout: verify: %w	error_code	error	jwt, token-verification, signout
auth: configuration: headers slice is empty	validation	error	configuration, validation, headers
auth: configuration: cookie block and cookie hash are requir	validation	error	configuration, cookie, security, validation
auth: configuration: %w	error_code	error	configuration, keys, startup, validation
auth: configuration: %s access token is missing from the con	validation	error	go, jwt, configuration, auth
%w: example: %s	error_code	error	go, configuration, file-not-found, json
parse yaml: %w	error_code	error	go, configuration, yaml, path-resolution
toml: %w	panic	error	toml, configuration, panic, filepath
toml :%w	panic	error	toml, configuration, file-not-found, panic
`ErrNotSupportedCompression` %w: %s	error_code	warning	http, compression, accept-encoding, negotiation
`ErrEmptyFormField` %w: %s	validation	warning	go, iris, form-data, validation
dest directory: %s: eval symlinks: %w	error_code	error	go, iris, filesystem, symlink, path
`ErrNotFound` unmarshal: empty body: %w	error_code	error	go, iris, request-body, json, validation
multipart related: body copy because of iris.Configuration.D	error_code	error	go, iris, multipart, request-body
multipart related: next part: %w	error_code	error	go, iris, multipart, parsing
multipart related: next part: read: %w	error_code	error	go, iris, multipart, io, network
context: read body: cannot bind multipart/related: use ReadM	error_code	error	go, iris, content-type, multipart, api-misuse
`ErrPreconditionFailed` method: %w	error_code	warning	go, iris, http-caching, conditional-request
unexpected "fsOrDir" argument type of %T (string or fs.FS or	panic	error	panic, filesystem, type-mismatch
invalid root name	error_code	error	path-traversal, security, validation
%s, %w	error_code	warning	date-parsing, input-validation
Passed handler cannot be converted directly: - http.H	panic	error	panic, http-middleware, handler-conversion
Passed argument is not a func(iris.Context) neither one	panic	error	panic, handler-conversion, type-mismatch
autotls: use iris.AutoTLSNoRedirect instead	error_code	error	autotls, tls, configuration
autotls: relies on an HTTP/1.1 server	exception	error	autotls, tls, configuration
failed to connect to the server after %d retries	exception	error	network, startup, connection
%s: %w	exception	error	unix-socket, filesystem, permissions
port already in use: %w	exception	error	unix-socket, port-in-use, network
cannot chmod %#o for %q: %w	exception	error	go, unix-socket, permissions, filesystem
new route: %s conflicts with an already registered one: %s r	exception	error	go, routing, duplicate-route, iris
name: %s: error: %w	exception	warning	go, http, url-parsing, file-server
nil loader	exception	error	go, i18n, configuration, nil-pointer
catalog: empty languages	exception	error	go, i18n, configuration, catalog
expected language index to be lower or equal than %d but got	exception	error	go, i18n, index-out-of-range, catalog
%s:%s parse string: %w	exception	error	go, i18n, template-parsing, translations
%s:%s parse map: %w	exception	error	go, i18n, nested-maps, translations
%s:%s unexpected type of %T as value	exception	error	go, i18n, type-error, translations
<%s = %s>: %w	exception	error	i18n, go, plural, message-syntax
key: %q: no registered plurals for <%d>	exception	error	i18n, go, plural, cldr
key: %q: missing plural count argument	exception	error	i18n, go, plural, arguments
template vars: <%s = %s>: %w	exception	error	i18n, go, template, syntax
locales not found in map	exception	error	i18n, go, loader, locales
locales expected to be %d but %d parsed	exception	error	i18n, go, loader, strict
locales not found in %s	exception	error	i18n, go, loader, files
build: %w	exception	error	iris, go, lifecycle, startup
build: view engine: %v	exception	error	go, iris, view-engine, templates, startup
build: inject live reload: failed: %v	exception	error	go, iris, live-reload, startup, devtools
build: router: %w	exception	error	go, iris, router, routes, startup
failed to connect to the server after %d retries	exception	error	go, iris, network, connection, startup
empty parameter types	exception	error	go, iris, macro, parser, route-parameters
%s: invalid path part: dynamic path parameter and other para	exception	error	go, iris, routing, path-parameters, macro
%s: parameter type "%s" should be registered to the very end	exception	error	go, iris, routing, wildcard, path-parameters
empty regex expression	exception	error	go, iris, macro, regex, configuration
%s: %w	validation	warning	go, iris, macro, route-parameters, validation
%s: mx is empty	validation	error	go, iris, dns, mx-records, email-validation
unexpected file extension: %s	exception	error	go, iris, basicauth, file-extension, configuration
refresh max age should be bigger than access token's one[%d	exception	error	go, iris, jwt, token-lifetime, configuration
redirect match: invalid line: %s	exception	error	go, iris, rewrite, redirect, configuration-parsing
redirect match: status code digits: %s [%d:%c]	exception	error	config, rewrite, validation
redirect match: status code digits: %s: %v	exception	error	config, rewrite, parsing
redirect match: loop detected: pattern: %s vs target: %s	exception	error	rewrite, redirect, infinite-loop, config
invalid syntax: the standard go type: %s found in controller	exception	error	mvc, routing, type-mismatch, validation
unknown value type of %T	validation	error	redis, sessions, deserialization
version %w	http	error	versioning, routing, api-versioning
walk: %s: %w	exception	error	filesystem, view, walk
walk stat: %s: %w	exception	error	filesystem, view, stat
walk: walkFn: %w	exception	error	filesystem, view, walk
asset: read file: %w	exception	error	filesystem, assets, io
please provide a map[string]any type as the binding instead	exception	error	handlebars, view-engine, type-mismatch, layout
%s: %w	exception	error	template-loading, filesystem, embedded-fs, view-engine
no templates found	exception	error	template-loading, empty-directory, view-engine, configuration
%s: %w	exception	error	jet, template-loading, filesystem, embedded-fs
no engine was registered	exception	error	view-engine, configuration, missing-registration, boot
client.Do: default request option[%d]: %w	exception	error	go, http-client, request-options, configuration
unsupported response body type: %T	exception	error	go, http-client, type-mismatch, developer-error
plain text response should accept a string or a []byte	exception	error	go, http-client, content-type, type-mismatch
DayTime: unknown type of: %T	validation	error	go, sql, scanner, type-mismatch, jsonx
ISO8601: %w	validation	error	go, time-parsing, iso8601, jsonx, validation
ISO8601: invalid timezone format: %s	validation	error	go, time-parsing, iso8601, timezone-offset
ISO8601: missing timezone offset	validation	error	go, jsonx, iso8601, timezone, date-parsing
ISO8601: invalid timezone offset length: %s	validation	error	go, jsonx, iso8601, timezone-offset, malformed-input
ISO8601: invalid timezone offset sign: %c	validation	error	go, jsonx, iso8601, timezone-offset, malformed-input
invalid offset format: %s	validation	error	time-parsing, iso8601, timezone-offset, go
error parsing offset hours: %s: %w	validation	error	time-parsing, iso8601, timezone-offset, strconv
invalid offset hours: %d: %s	validation	error	time-parsing, iso8601, timezone-offset, range-check
error parsing offset minutes: %s: %w	validation	error	time-parsing, iso8601, timezone-offset, strconv
invalid offset minutes: %d: %s	validation	error	time-parsing, iso8601, timezone-offset, range-check
error parsing offset seconds: %s: %w	validation	error	time-parsing, iso8601, timezone-offset, strconv
invalid offset seconds: %d: %s	validation	error	time-parsing, iso8601, timezone-offset, range-check
ISO8601: unknown type of: %T	error_code	error	sql, scanner, type-mismatch, go
parse kitchen time: missing ':' character	validation	error	time-parsing, kitchen-time, format-validation, go
kitchen time: dest is nil	validation	error	json, unmarshal, nil-pointer, go
kitchen time: convert to time notation first: %w	validation	error	go, json, scan, time-parsing, postgres
KitchenTime: unknown type of: %T	error_code	error	go, json, scan, type-mismatch, postgres
%w: season: %s	validation	warning	go, json, enum, bitmask, unmarshal
%s: %w	validation	error	go, json, date-parsing, layout, postgres
SimpleDate: unknown type of: %T	error_code	error	go, json, scan, type-mismatch, postgres
simple dates: scan: invalid type of: %T	error_code	error	go, json, scan, type-mismatch, postgres
invalid duration format: expected hours:minutes:seconds (e.g	validation	error	go, json, duration, time-parsing
sqlx: bind: destination not a pointer	error_code	error	go, sql, reflection, sqlx, bind
sqlx: bind: unregistered type: %q	error_code	error	go, sql, sqlx, bind, registration
sqlx: bind: table: %q: %w	error_code	error	go, sql, sqlx, bind, driver-error
sqlx: bind: table: %q: unexpected number of result columns:	error_code	error	sql, reflection, schema-mismatch
sqlx: bind: table: %q: unexpected destination kind: %q	error_code	error	reflection, api-misuse, go
convert struct: invalid type: expected a struct value but go	error_code	error	reflection, registration, go
convert struct: field name: %q: %w	error_code	error	struct-tags, reflection, registration
option: %s: expected key value separated by '='	error_code	error	struct-tags, parsing, registration
unexpected tag option: %s	error_code	error	struct-tags, parsing, registration
iris: switch: empty cases	panic	error	iris, panic, configuration
iris: switch: hosts: invalid target host: "%s"	panic	error	iris, panic, url-validation, hosts
iris: switch: hosts: loop detected between expression: "%s"	panic	error	iris, panic, redirect-loop, regex
iris: switch: hosts: invalid target type: %T	panic	error	go, panic, type-mismatch, routing
panic(err)	panic	critical	go, panic, config, startup
panic(err)	panic	error	go, panic, config, bootstrap
default configuration file '" + filename + "' does not exist	panic	error	go, panic, config, file-not-found
default configuration file '<filename>' does not exist	panic	error	go, panic, config, toml, file-not-found
<appName> is not a registered Application	panic	error	go, panic, application-registry, routing
HandleDir: no directories found under the embedded file syst	panic	error	go, panic, embed, static-files
unexpected "fsOrDir" argument type of %T (string or http.Fil	panic	error	go, panic, type-mismatch, static-files
pool cannot be nil	panic	error	panic, nil-argument, routing, generics
remove handler: unexpected type of %T	panic	error	panic, type-mismatch, routing, middleware
api container: set dependency matcher: fn cannot be nil	panic	error	panic, nil-argument, dependency-injection, di
FileServer: fs is nil. The fs parameter should point to a fi	panic	error	panic, nil-argument, file-server, static-files
remove handler: unexpected type of %T	panic	error	panic, type-mismatch, routing, middleware
bindings: unresolved: no a func type: %#+v	panic	error	go, reflection, dependency-injection, panic, handler-registration
expected [%d] bindings (input parameters) but got [%d] Funct	panic	error	go, dependency-injection, binding, panic, unresolved-dependency
bindings: unresolved: not a struct type: %#+v	panic	error	go, reflection, dependency-injection, panic, struct-registration
MarkExportedFieldsAsRequired is true and at least one of str	panic	error	go, dependency-injection, panic, required-fields, struct-binding
bad value: nil: %T	panic	error	go, nil-value, dependency-injection, panic, registration
bad value: %#+v	panic	error	dependency-injection, nil-value, panic, registration
bad value: could not resolve a dependency from: %#+v	panic	error	dependency-injection, unresolvable-dependency, panic, binding
bad value: function has zero inputs: empty input function mu	panic	error	dependency-injection, function-signature, panic, reflection
bad value: function has zero outputs	panic	error	dependency-injection, function-signature, panic, no-return
bad value: second output should be an error	panic	error	dependency-injection, function-signature, panic, error-return
bad value: function has invalid number of output arguments:	panic	error	dependency-injection, function-signature, panic, too-many-returns
makeHandler: function is nil	panic	error	http-handler, nil-function, panic, hero
makeHandler: func(...<T>) iris.Handler: expected %d function	panic	error	http-handler, static-binding, panic, middleware-factory
binder: struct: should be a pointer to a struct value	panic	error	dependency-injection, struct-binding, panic, pointer-required
binder: DisableStructDynamicBindings setting is set to true:	panic	error	dependency-injection, dynamic-binding, panic, singleton
binder: Singleton setting is set to true but struct has dyna	panic	error	go, dependency-injection, panic, singleton
struct: method: %s does not exist	panic	error	go, reflection, panic, routing
HandleError input argument must be a type of func(iris.Conte	panic	error	go, panic, type-mismatch, routing
%T does not allow any input arguments from route but got [le	panic	error	go, panic, routing, path-parameters
on field index: %d: %v	panic	error	go, panic, reflection, path-parameters
args(len=%d) should be the same len as numFields(%d) for: %s	panic	error	go, panic, routing, path-parameters
func's input arguments should have the same type: [%d] expec	panic	error	go, panic, type-mismatch, path-parameters
err	panic	critical	go, filesystem, panic, logging
accesslog: SetFormatter called with nil Writer	panic	error	go, panic, logging, nil-pointer
BasicAuth: Allow field is required	panic	error	go, panic, authentication, basicauth
unsupported type of map: %T	panic	error	go, panic, basicauth, type-mismatch, startup
unsupported type: %T	panic	error	go, panic, basicauth, type-mismatch, nil-value
err	panic	critical	go, panic, basicauth, file-not-found, yaml, startup
malformed document file:	panic	error	go, panic, basicauth, schema-validation, yaml
err	panic	critical	go, panic, jwt, aes-gcm, invalid-key, startup
err	panic	critical	go, panic, jwt, aes-gcm, invalid-key, startup
err	panic	critical	go, panic, monitoring, process, gopsutil, container
iris: rewrite:	panic	critical	go, panic, rewrite, file-not-found, startup
iris: rewrite: unexpected file extension:	panic	error	go, panic, rewrite, file-extension, configuration
iris: rewrite: decode:	panic	error	go, panic, rewrite, yaml, json, parse-error, configuration
err	panic	critical	panic, config, yaml, routing, startup
MVC: Singleton called from wrong state the API gives access	panic	error	panic, mvc, lifecycle, wrong-state
MVC: DependenciesReadOnly called from wrong state the API gi	panic	error	panic, mvc, dependency-injection, lifecycle
err	panic	critical	redis, network, panic, startup, connection
err	panic	error	templates, filesystem, panic, embedded-fs
django: template data: should be a map or struct	panic	error	templates, django, panic, wrong-type
err	panic	error	templates, filesystem, panic, embedded-fs
err	panic	error	templates, filesystem, panic, embedded-fs
%s extension is not a valid jet engine extension[%s]	panic	error	templates, jet, panic, validation, wrong-argument
err	panic	error	go, panic, templates, filesystem
expects one or more input arguments	panic	error	go, panic, templates, jet
JetEngine.AddFunc: funcBody argument is not a type of func(J	panic	error	go, panic, type-mismatch, jet
at least one context request handler function is required	panic	error	go, panic, validation, handlers
at least one context response handler function is required	panic	error	go, panic, intercept, handlers
invalid number of arguments	panic	error	go, panic, handler-signature, x-errors
invalid DateRangeType given: %s	panic	error	go, panic, dates, invalid-enum
sqlx: register: %q: %s	panic	error	go, panic, sqlx, reflection, schema