dnd5e

package
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Published: Jun 14, 2026 License: Apache-2.0 Imports: 9 Imported by: 0

Documentation

Overview

Package dnd5e is the library behind the dnd5e command line: the HTTP client, request shaping, and the typed data models for the D&D 5th Edition API (www.dnd5eapi.co).

The Client here is the spine every command shares. It sets a real User-Agent, paces requests so a busy session stays polite, and retries the transient failures (429 and 5xx) that any public API throws under load. Build your endpoint calls and JSON decoding on top of it.

Index

Constants

View Source
const BaseURL = "https://" + Host

BaseURL is the root every request is built from.

View Source
const DefaultUserAgent = "dnd5e/dev (+https://github.com/tamnd/dnd5e-cli)"

DefaultUserAgent identifies the client to the D&D 5e API.

View Source
const Host = "www.dnd5eapi.co"

Host is the site this client talks to.

Variables

This section is empty.

Functions

This section is empty.

Types

type Class

type Class struct {
	Index  string `kit:"id" json:"index"`
	Name   string `json:"name"`
	HitDie int    `json:"hit_die"`
}

Class holds the brief record for a D&D 5e character class.

type Client

type Client struct {
	HTTP      *http.Client
	UserAgent string
	// Rate is the minimum gap between requests. Zero means no pacing.
	Rate    time.Duration
	Retries int
	// contains filtered or unexported fields
}

Client talks to the D&D 5e API over HTTP.

func NewClient

func NewClient() *Client

NewClient returns a Client with sensible defaults: a 30s timeout, a 200ms minimum gap between requests, and five retries on transient errors.

func (*Client) Get

func (c *Client) Get(ctx context.Context, url string) ([]byte, error)

Get fetches url and returns the response body. It paces and retries according to the client's settings. The caller owns nothing extra; the body is read fully and closed here.

func (*Client) GetMonster

func (c *Client) GetMonster(ctx context.Context, index string) (*Monster, error)

GetMonster fetches full stats for a single monster by its index.

func (*Client) GetSpell

func (c *Client) GetSpell(ctx context.Context, index string) (*Spell, error)

GetSpell fetches full details for a single spell by its index.

func (*Client) ListClasses

func (c *Client) ListClasses(ctx context.Context) ([]ListItem, error)

ListClasses returns all character classes.

func (*Client) ListMonsters

func (c *Client) ListMonsters(ctx context.Context, limit int) ([]ListItem, error)

ListMonsters returns a list of all monsters, truncated to limit items.

func (*Client) ListSpells

func (c *Client) ListSpells(ctx context.Context, limit int) ([]ListItem, error)

ListSpells returns a list of all spells, truncated to limit items.

type Domain

type Domain struct{}

Domain is the dnd5e driver. It carries no state; the per-run client is built by the factory Register hands kit.

func (Domain) Classify

func (Domain) Classify(input string) (uriType, id string, err error)

Classify turns any accepted input into the canonical (type, id), so `ant resolve` and `ant url` need no network.

Heuristic: if the id matches a known class name → class; otherwise → spell (spells are far more numerous and include both all-letter names like "fireball" and hyphenated names like "cure-wounds").

func (Domain) Info

func (Domain) Info() kit.DomainInfo

Info describes the scheme, the hostnames a pasted link is matched against, and the identity reused for the binary's help and version.

func (Domain) Locate

func (Domain) Locate(uriType, id string) (string, error)

Locate is the inverse: the live https URL for a (type, id).

func (Domain) Register

func (Domain) Register(app *kit.App)

Register installs the client factory and every operation onto app.

type ListItem

type ListItem struct {
	Index string `kit:"id" json:"index"`
	Name  string `json:"name"`
	URL   string `json:"url"`
}

ListItem is a brief record returned by list endpoints.

type Monster

type Monster struct {
	Index           string  `kit:"id" json:"index"`
	Name            string  `json:"name"`
	Size            string  `json:"size"`
	Type            string  `json:"type"`
	Alignment       string  `json:"alignment"`
	HitPoints       int     `json:"hit_points"`
	ArmorClass      int     `json:"armor_class"`
	ChallengeRating float64 `json:"challenge_rating"`
	Strength        int     `json:"strength"`
	Dexterity       int     `json:"dexterity"`
	Constitution    int     `json:"constitution"`
	Intelligence    int     `json:"intelligence"`
	Wisdom          int     `json:"wisdom"`
	Charisma        int     `json:"charisma"`
}

Monster holds the stat block for a single D&D 5e monster.

type Spell

type Spell struct {
	Index       string   `kit:"id" json:"index"`
	Name        string   `json:"name"`
	Level       int      `json:"level"`
	School      string   `json:"school_name"`
	CastingTime string   `json:"casting_time"`
	Range       string   `json:"range"`
	Duration    string   `json:"duration"`
	Description []string `json:"desc"`
	Components  []string `json:"components"`
	Classes     []string `json:"class_names"`
}

Spell holds the details for a single D&D 5e spell.

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