feat: Add no-code endpoint for fetching registry module variables.

Author: paladin-devops

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 * Fixes a bug in `NewRequest` that did not allow query parameters to be specified in the first parameter, which broke several methods: `RegistryModules ReadVersion`, `VariableSets UpdateWorkspaces`, and `Workspaces Readme` by @brandonc [#982](https://github.com/hashicorp/go-tfe/pull/982)
 
+## Enhancements
+
+* Add support for reading a no-code module's variables by @paladin-devops [#979](https://github.com/hashicorp/go-tfe/pull/979)
+
 # v1.67.0
 
 ## Enhancements

mocks/registry_no_code_module_mocks.go

@@ -26,6 +26,10 @@ type RegistryNoCodeModules interface {
 	// **Note: This API is still in BETA and subject to change.**
 	Read(ctx context.Context, noCodeModuleID string, options *RegistryNoCodeModuleReadOptions) (*RegistryNoCodeModule, error)
 
+	// ReadVariables returns the variables for a version of a no-code module
+	// **Note: This API is still in BETA and subject to change.**
+	ReadVariables(ctx context.Context, noCodeModuleID, noCodeModuleVersion string, options *RegistryNoCodeModuleReadVariablesOptions) (*RegistryModuleVariableList, error)
+
 	// Update a registry no-code module
 	// **Note: This API is still in BETA and subject to change.**
 	Update(ctx context.Context, noCodeModuleID string, options RegistryNoCodeModuleUpdateOptions) (*RegistryNoCodeModule, error)
@@ -41,6 +45,44 @@ type RegistryNoCodeModules interface {
 	UpgradeWorkspace(ctx context.Context, noCodeModuleID string, workspaceID string, options *RegistryNoCodeModuleUpgradeWorkspaceOptions) (*WorkspaceUpgrade, error)
 }
 
+// RegistryModuleVariableList is a list of registry module variables.
+type RegistryModuleVariableList struct {
+	Items []*RegistryModuleVariable
+
+	// NOTE: At the time of authoring this comment, the API endpoint to fetch
+	// registry module variables does not support pagination. This field is
+	// included to satisfy jsonapi unmarshaler implementation here:
+	// https://github.com/hashicorp/go-tfe/blob/3d29602707fa4b10469d1a02685644bd159d3ccc/tfe.go#L859
+	*Pagination
+}
+
+// RegistryModuleVariable represents a registry module variable.
+type RegistryModuleVariable struct {
+	// ID is the ID of the variable.
+	ID string `jsonapi:"primary,registry-module-variables"`
+
+	// Name is the name of the variable.
+	Name string `jsonapi:"attr,name"`
+
+	// VariableType is the type of the variable.
+	VariableType string `jsonapi:"attr,type"`
+
+	// Description is the description of the variable.
+	Description string `jsonapi:"attr,description"`
+
+	// Required is a boolean indicating if the variable is required.
+	Required bool `jsonapi:"attr,required"`
+
+	// Sensitive is a boolean indicating if the variable is sensitive.
+	Sensitive bool `jsonapi:"attr,sensitive"`
+
+	// Options is a slice of strings representing the options for the variable.
+	Options []string `jsonapi:"attr,options"`
+
+	// HasGlobal is a boolean indicating if the variable is global.
+	HasGlobal bool `jsonapi:"attr,has-global"`
+}
+
 type RegistryNoCodeModuleCreateWorkspaceOptions struct {
 	Type string `jsonapi:"primary,no-code-module-workspace"`
 
@@ -160,6 +202,14 @@ type RegistryNoCodeModuleReadOptions struct {
 	Include []RegistryNoCodeModuleIncludeOpt `url:"include,omitempty"`
 }
 
+type RegistryNoCodeModuleReadVariablesOptions struct {
+	// Type is a public field utilized by JSON:API to
+	// set the resource type via the field tag.
+	// It is not a user-defined value and does not need to be set.
+	// https://jsonapi.org/format/#crud-updating
+	Type string `jsonapi:"primary,no-code-modules"`
+}
+
 // RegistryNoCodeModuleUpdateOptions is used when updating a registry no-code module
 type RegistryNoCodeModuleUpdateOptions struct {
 	// Type is a public field utilized by JSON:API to
@@ -243,6 +293,39 @@ func (r *registryNoCodeModules) Read(ctx context.Context, noCodeModuleID string,
 	return rm, nil
 }
 
+// ReadVariables retrieves the no-code variable options for a version of a
+// module.
+func (r *registryNoCodeModules) ReadVariables(
+	ctx context.Context,
+	noCodeModuleID, noCodeModuleVersion string,
+	options *RegistryNoCodeModuleReadVariablesOptions,
+) (*RegistryModuleVariableList, error) {
+	if !validStringID(&noCodeModuleID) {
+		return nil, ErrInvalidModuleID
+	}
+	if !validVersion(noCodeModuleVersion) {
+		return nil, ErrInvalidVersion
+	}
+
+	u := fmt.Sprintf(
+		"no-code-modules/%s/versions/%s/module-variables",
+		url.PathEscape(noCodeModuleID),
+		url.PathEscape(noCodeModuleVersion),
+	)
+	req, err := r.client.NewRequest("GET", u, options)
+	if err != nil {
+		return nil, err
+	}
+
+	resp := &RegistryModuleVariableList{}
+	err = req.Do(ctx, resp)
+	if err != nil {
+		return nil, err
+	}
+
+	return resp, nil
+}
+
 // Update a registry no-code module
 func (r *registryNoCodeModules) Update(ctx context.Context, noCodeModuleID string, options RegistryNoCodeModuleUpdateOptions) (*RegistryNoCodeModule, error) {
 	if !validString(&noCodeModuleID) {

registry_no_code_module.go

@@ -211,6 +211,34 @@ func TestRegistryNoCodeModulesRead(t *testing.T) {
 	})
 }
 
+// TestRegistryNoCodeModuleReadVariables tests the ReadVariables method of the
+// RegistryNoCodeModules service.
+//
+// This test requires that the environment variable "NO_CODE_MODULE_ID" is set
+// with the ID of an existing no-code module that has variables.
+func TestRegistryNoCodeModulesReadVariables(t *testing.T) {
+	skipUnlessBeta(t)
+	client := testClient(t)
+	ctx := context.Background()
+	r := require.New(t)
+
+	ncmID := os.Getenv("NO_CODE_MODULE_ID")
+	if ncmID == "" {
+		t.Skip("Export a valid NO_CODE_MODULE_ID before running this test")
+	}
+
+	ncm, err := client.RegistryNoCodeModules.Read(ctx, ncmID, nil)
+	r.NoError(err)
+	r.NotNil(ncm)
+
+	t.Run("happy path", func(t *testing.T) {
+		vars, err := client.RegistryNoCodeModules.ReadVariables(ctx, ncm.ID, ncm.VersionPin, &RegistryNoCodeModuleReadVariablesOptions{})
+		r.NoError(err)
+		r.NotNil(vars)
+		r.NotEmpty(vars)
+	})
+}
+
 func TestRegistryNoCodeModulesUpdate(t *testing.T) {
 	skipUnlessBeta(t)
 	client := testClient(t)