contract

package
v1.1.0 Latest Latest
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 Go to latest Published: Apr 4, 2026 License: MIT Imports: 7 Imported by: 0

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Constants

View Source 
const (
	InterfaceTypeHTTP  = "http"
	InterfaceTypeGRPC  = "grpc"
	InterfaceTypeEvent = "event"
)

InterfaceType constants.

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const (
	VisibilityPublic   = "public"
	VisibilityInternal = "internal"
)

Visibility constants.

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const (
	WorkloadTypeService   = "service"
	WorkloadTypeJob       = "job"
	WorkloadTypeScheduled = "scheduled"
)

WorkloadType constants.

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const (
	StateStateless = "stateless"
	StateStateful  = "stateful"
	StateHybrid    = "hybrid"
)

StateType constants.

View Source 
const (
	DataCriticalityLow    = "low"
	DataCriticalityMedium = "medium"
	DataCriticalityHigh   = "high"
)

DataCriticality constants.

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const (
	ScopeLocal  = "local"
	ScopeShared = "shared"
)

Scope constants.

View Source 
const (
	DurabilityEphemeral  = "ephemeral"
	DurabilityPersistent = "persistent"
)

Durability constants.

View Source 
const (
	UpgradeStrategyRolling  = "rolling"
	UpgradeStrategyRecreate = "recreate"
	UpgradeStrategyOrdered  = "ordered"
)

UpgradeStrategy constants.

Variables

This section is empty.

Functions

This section is empty.

Types

type Bundle 

type Bundle struct {
	Contract *Contract
	RawYAML  []byte // Original YAML bytes; populated for local reads.
	FS       fs.FS
}

Bundle represents a contract bundled with its referenced files.

type Chart added in v0.18.0 

type Chart struct {
	Ref     string `yaml:"ref" json:"ref"`
	Version string `yaml:"version" json:"version"`
}

Chart describes the Helm chart for the service.

type ConfigurationSource added in v1.0.0 

type ConfigurationSource struct {
	Name   string                 `yaml:"name" json:"name"`
	Schema string                 `yaml:"schema,omitempty" json:"schema,omitempty"`
	Ref    string                 `yaml:"ref,omitempty" json:"ref,omitempty"`
	Values map[string]interface{} `yaml:"values,omitempty" json:"values,omitempty"`
}

ConfigurationSource declares a named configuration scope. Each entry is an independent scope with no implicit merge semantics. Name is required and must be unique within the configurations array. Exactly one of Schema or Ref must be set. Values is only allowed with Schema.

type Contract 

type Contract struct {
	PactoVersion   string                 `yaml:"pactoVersion" json:"pactoVersion"`
	Service        ServiceIdentity        `yaml:"service" json:"service"`
	Interfaces     []Interface            `yaml:"interfaces,omitempty" json:"interfaces,omitempty"`
	Configurations []ConfigurationSource  `yaml:"configurations,omitempty" json:"configurations,omitempty"`
	Policies       []PolicySource         `yaml:"policies,omitempty" json:"policies,omitempty"`
	Dependencies   []Dependency           `yaml:"dependencies,omitempty" json:"dependencies,omitempty"`
	Runtime        *Runtime               `yaml:"runtime,omitempty" json:"runtime,omitempty"`
	Scaling        *Scaling               `yaml:"scaling,omitempty" json:"scaling,omitempty"`
	Metadata       map[string]interface{} `yaml:"metadata,omitempty" json:"metadata,omitempty"`
}

Contract is the root aggregate — the parsed in-memory representation of a pacto.yaml.

func Parse 

func Parse(r io.Reader) (*Contract, error)

Parse deserializes a pacto.yaml from the given reader into a Contract. It handles syntactic correctness only (field types, required top-level structure). Semantic validation is a separate concern handled by the validation engine.

type Dependency 

type Dependency struct {
	Name          string `yaml:"name" json:"name"`
	Ref           string `yaml:"ref" json:"ref"`
	Required      bool   `yaml:"required,omitempty" json:"required,omitempty"`
	Compatibility string `yaml:"compatibility" json:"compatibility"`
}

Dependency represents a named dependency on another service. Name is required and must be unique within the dependencies array.

type Health 

type Health struct {
	Interface           string `yaml:"interface" json:"interface"`
	Path                string `yaml:"path,omitempty" json:"path,omitempty"`
	InitialDelaySeconds *int   `yaml:"initialDelaySeconds,omitempty" json:"initialDelaySeconds,omitempty"`
}

Health describes the health check configuration.

type Image 

type Image struct {
	Ref     string `yaml:"ref" json:"ref"`
	Private bool   `yaml:"private,omitempty" json:"private,omitempty"`
}

Image describes the container image for the service.

type Interface 

type Interface struct {
	Name       string `yaml:"name" json:"name"`
	Type       string `yaml:"type" json:"type"`
	Port       *int   `yaml:"port,omitempty" json:"port,omitempty"`
	Visibility string `yaml:"visibility,omitempty" json:"visibility,omitempty"`
	Contract   string `yaml:"contract,omitempty" json:"contract,omitempty"`
}

Interface describes a service interface declaration.

type Lifecycle 

type Lifecycle struct {
	UpgradeStrategy         string `yaml:"upgradeStrategy,omitempty" json:"upgradeStrategy,omitempty"`
	GracefulShutdownSeconds *int   `yaml:"gracefulShutdownSeconds,omitempty" json:"gracefulShutdownSeconds,omitempty"`
}

Lifecycle describes lifecycle behavior.

type Metrics added in v0.19.0 

type Metrics struct {
	Interface string `yaml:"interface" json:"interface"`
	Path      string `yaml:"path,omitempty" json:"path,omitempty"`
}

Metrics describes the metrics endpoint configuration.

type OCIReference 

type OCIReference struct {
	Registry   string
	Repository string
	Tag        string
	Digest     string
}

OCIReference represents a parsed OCI artifact reference.

func ParseOCIReference 

func ParseOCIReference(s string) (OCIReference, error)

ParseOCIReference parses an OCI reference string into its components. Accepted formats: 

registry/repo
registry/repo:tag
registry/repo@sha256:hex
registry/repo:tag@sha256:hex

func (OCIReference) String 

func (r OCIReference) String() string

String returns the full OCI reference string.

type Owner added in v0.34.0 

type Owner struct {
	// contains filtered or unexported fields
}

Owner represents ownership information for a service. It supports two forms for backward compatibility:

  • Legacy string: "team/payments"
  • Structured object: { team: "foundations", dri: "eduardo.diaz", contacts: [...] }

func NewOwnerFromInfo added in v0.34.0 

func NewOwnerFromInfo(info OwnerInfo) Owner

NewOwnerFromInfo creates an Owner from structured ownership metadata.

func NewOwnerFromString added in v0.34.0 

func NewOwnerFromString(s string) Owner

NewOwnerFromString creates an Owner from a legacy string value.

func (Owner) Contacts added in v0.34.0 

func (o Owner) Contacts() []OwnerContact

Contacts returns the contacts list. Nil for legacy string owners.

func (Owner) DRI added in v0.34.0 

func (o Owner) DRI() string

DRI returns the DRI. Empty for legacy string owners.

func (Owner) DisplayString added in v0.34.0 

func (o Owner) DisplayString() string

DisplayString returns a human-readable representation of the owner. For legacy strings, returns the string as-is. For structured owners, returns the team name (or DRI if no team).

func (Owner) Equal added in v0.34.0 

func (o Owner) Equal(other Owner) bool

Equal reports whether two Owner values are semantically equal.

func (Owner) Info added in v0.34.0 

func (o Owner) Info() *OwnerInfo

Info returns the structured ownership info, or nil if legacy string form.

func (Owner) IsEmpty added in v0.34.0 

func (o Owner) IsEmpty() bool

IsEmpty returns true if no ownership information is set.

func (Owner) IsStructured added in v0.34.0 

func (o Owner) IsStructured() bool

IsStructured returns true if the owner uses the structured object form.

func (Owner) MarshalJSON added in v0.34.0 

func (o Owner) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

func (Owner) MarshalYAML added in v0.34.0 

func (o Owner) MarshalYAML() (interface{}, error)

MarshalYAML implements yaml.Marshaler.

func (Owner) MatchesFilter added in v0.34.0 

func (o Owner) MatchesFilter(query string) bool

MatchesFilter returns true if the owner matches a search query. Matches against team, dri, and contact values (case-insensitive).

func (Owner) String added in v0.34.0 

func (o Owner) String() string

String returns the legacy string value. Empty if structured form.

func (Owner) Team added in v0.34.0 

func (o Owner) Team() string

Team returns the team name. For legacy strings, returns the full string. For structured owners, returns the Team field.

func (*Owner) UnmarshalJSON added in v0.34.0 

func (o *Owner) UnmarshalJSON(data []byte) error

UnmarshalJSON implements json.Unmarshaler.

func (*Owner) UnmarshalYAML added in v0.34.0 

func (o *Owner) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements yaml.Unmarshaler.

type OwnerContact added in v0.34.0 

type OwnerContact struct {
	Type    string `yaml:"type" json:"type"`
	Value   string `yaml:"value" json:"value"`
	Purpose string `yaml:"purpose,omitempty" json:"purpose,omitempty"`
}

OwnerContact is a provider-neutral contact point.

type OwnerInfo added in v0.34.0 

type OwnerInfo struct {
	Team     string         `yaml:"team,omitempty" json:"team,omitempty"`
	DRI      string         `yaml:"dri,omitempty" json:"dri,omitempty"`
	Contacts []OwnerContact `yaml:"contacts,omitempty" json:"contacts,omitempty"`
}

OwnerInfo is the structured ownership metadata.

type ParseError 

type ParseError struct {
	Path    string
	Message string
	Err     error // underlying cause, if any
}

ParseError represents an error encountered during YAML parsing.

func (*ParseError) Error 

func (e *ParseError) Error() string

func (*ParseError) Unwrap added in v0.2.1 

func (e *ParseError) Unwrap() error

type Persistence 

type Persistence struct {
	Scope      string `yaml:"scope" json:"scope"`
	Durability string `yaml:"durability" json:"durability"`
}

Persistence represents the persistence requirements.

type PolicySource added in v0.35.0 

type PolicySource struct {
	Name   string `yaml:"name" json:"name"`
	Schema string `yaml:"schema,omitempty" json:"schema,omitempty"`
	Ref    string `yaml:"ref,omitempty" json:"ref,omitempty"`
}

PolicySource declares a named policy constraint source. Each entry provides either a local JSON Schema file or a reference to an external contract. When resolving a ref, if the referenced contract declares its own policies[] entries, those schemas are used directly (supporting custom paths and multiple schemas). Otherwise, the fixed path policy/schema.json is used as a backward-compatible fallback. A policy schema validates the contract itself, enabling platform teams to enforce organizational standards. Schema and Ref are mutually exclusive. Name is required and must be unique within the policies array.

type Range 

type Range struct {
	// contains filtered or unexported fields
}

Range represents a parsed semver constraint range.

func ParseRange 

func ParseRange(s string) (Range, error)

ParseRange parses a semver range string (npm-style: ^, ~, exact, range).

func (Range) Contains 

func (r Range) Contains(version string) bool

Contains returns true if the given version string satisfies this range.

func (Range) String 

func (r Range) String() string

String returns the original range string.

type Runtime 

type Runtime struct {
	Workload  string     `yaml:"workload" json:"workload"`
	State     State      `yaml:"state" json:"state"`
	Lifecycle *Lifecycle `yaml:"lifecycle,omitempty" json:"lifecycle,omitempty"`
	Health    *Health    `yaml:"health,omitempty" json:"health,omitempty"`
	Metrics   *Metrics   `yaml:"metrics,omitempty" json:"metrics,omitempty"`
}

Runtime describes how the service behaves at runtime.

type Scaling 

type Scaling struct {
	Replicas *int `yaml:"replicas,omitempty" json:"replicas,omitempty"`
	Min      int  `yaml:"min,omitempty" json:"min,omitempty"`
	Max      int  `yaml:"max,omitempty" json:"max,omitempty"`
}

Scaling describes scaling parameters. Either Replicas (exact count) or Min/Max (range) is set.

type ServiceIdentity 

type ServiceIdentity struct {
	Name    string `yaml:"name" json:"name"`
	Version string `yaml:"version" json:"version"`
	Owner   Owner  `yaml:"owner,omitempty" json:"owner,omitempty"`
	Image   *Image `yaml:"image,omitempty" json:"image,omitempty"`
	Chart   *Chart `yaml:"chart,omitempty" json:"chart,omitempty"`
}

ServiceIdentity holds service identification fields.

type State 

type State struct {
	Type            string      `yaml:"type" json:"type"`
	Persistence     Persistence `yaml:"persistence" json:"persistence"`
	DataCriticality string      `yaml:"dataCriticality" json:"dataCriticality"`
}

State describes the state semantics of the service.

type ValidationError 

type ValidationError struct {
	Path    string
	Code    string
	Message string
}

ValidationError represents a validation failure that makes a contract invalid.

func (*ValidationError) Error 

func (e *ValidationError) Error() string

type ValidationWarning 

type ValidationWarning struct {
	Path    string
	Code    string
	Message string
}

ValidationWarning represents a validation concern that does not invalidate the contract.

func (*ValidationWarning) String 

func (w *ValidationWarning) String() string

Source Files

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