122 lines
3.8 KiB
Go
122 lines
3.8 KiB
Go
package jsonapi
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import "fmt"
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// Payloader is used to encapsulate the One and Many payload types
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type Payloader interface {
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clearIncluded()
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}
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// OnePayload is used to represent a generic JSON API payload where a single
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// resource (Node) was included as an {} in the "data" key
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type OnePayload struct {
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Data *Node `json:"data"`
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Included []*Node `json:"included,omitempty"`
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Links *Links `json:"links,omitempty"`
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Meta *Meta `json:"meta,omitempty"`
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}
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func (p *OnePayload) clearIncluded() {
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p.Included = []*Node{}
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}
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// ManyPayload is used to represent a generic JSON API payload where many
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// resources (Nodes) were included in an [] in the "data" key
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type ManyPayload struct {
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Data []*Node `json:"data"`
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Included []*Node `json:"included,omitempty"`
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Links *Links `json:"links,omitempty"`
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Meta *Meta `json:"meta,omitempty"`
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}
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func (p *ManyPayload) clearIncluded() {
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p.Included = []*Node{}
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}
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// Node is used to represent a generic JSON API Resource
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type Node struct {
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Type string `json:"type"`
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ID string `json:"id,omitempty"`
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ClientID string `json:"client-id,omitempty"`
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Attributes map[string]interface{} `json:"attributes,omitempty"`
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Relationships map[string]interface{} `json:"relationships,omitempty"`
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Links *Links `json:"links,omitempty"`
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Meta *Meta `json:"meta,omitempty"`
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}
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// RelationshipOneNode is used to represent a generic has one JSON API relation
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type RelationshipOneNode struct {
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Data *Node `json:"data"`
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Links *Links `json:"links,omitempty"`
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Meta *Meta `json:"meta,omitempty"`
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}
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// RelationshipManyNode is used to represent a generic has many JSON API
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// relation
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type RelationshipManyNode struct {
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Data []*Node `json:"data"`
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Links *Links `json:"links,omitempty"`
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Meta *Meta `json:"meta,omitempty"`
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}
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// Links is used to represent a `links` object.
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// http://jsonapi.org/format/#document-links
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type Links map[string]interface{}
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func (l *Links) validate() (err error) {
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// Each member of a links object is a “link”. A link MUST be represented as
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// either:
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// - a string containing the link’s URL.
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// - an object (“link object”) which can contain the following members:
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// - href: a string containing the link’s URL.
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// - meta: a meta object containing non-standard meta-information about the
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// link.
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for k, v := range *l {
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_, isString := v.(string)
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_, isLink := v.(Link)
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if !(isString || isLink) {
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return fmt.Errorf(
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"The %s member of the links object was not a string or link object",
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k,
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)
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}
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}
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return
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}
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// Link is used to represent a member of the `links` object.
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type Link struct {
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Href string `json:"href"`
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Meta Meta `json:"meta,omitempty"`
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}
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// Linkable is used to include document links in response data
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// e.g. {"self": "http://example.com/posts/1"}
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type Linkable interface {
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JSONAPILinks() *Links
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}
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// RelationshipLinkable is used to include relationship links in response data
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// e.g. {"related": "http://example.com/posts/1/comments"}
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type RelationshipLinkable interface {
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// JSONAPIRelationshipLinks will be invoked for each relationship with the corresponding relation name (e.g. `comments`)
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JSONAPIRelationshipLinks(relation string) *Links
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}
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// Meta is used to represent a `meta` object.
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// http://jsonapi.org/format/#document-meta
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type Meta map[string]interface{}
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// Metable is used to include document meta in response data
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// e.g. {"foo": "bar"}
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type Metable interface {
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JSONAPIMeta() *Meta
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}
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// RelationshipMetable is used to include relationship meta in response data
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type RelationshipMetable interface {
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// JSONRelationshipMeta will be invoked for each relationship with the corresponding relation name (e.g. `comments`)
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JSONAPIRelationshipMeta(relation string) *Meta
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}
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