diff --git a/app/webmention_service.go b/app/webmention_service.go
index 41986b5..1732d4f 100644
--- a/app/webmention_service.go
+++ b/app/webmention_service.go
@@ -109,7 +109,7 @@ func (s *WebmentionService) GetExistingWebmention(entryId string, source string,
 	}
 	for _, interaction := range inters {
 		if webm, ok := interaction.(*interactions.Webmention); ok {
-			m := webm.MetaData().(interactions.WebmentionInteractionMetaData)
+			m := webm.MetaData().(interactions.WebmentionMetaData)
 			if m.Source == source && m.Target == target {
 				return webm, nil
 			}
@@ -130,6 +130,10 @@ func (s *WebmentionService) ProcessWebmention(source string, target string) erro
 	}
 
 	entryId := UrlToEntryId(target)
+	println(entryId)
+	println(entryId)
+	println(entryId)
+	println(entryId)
 	_, err = s.EntryRepository.FindById(entryId)
 	if err != nil {
 		return err
@@ -140,7 +144,7 @@ func (s *WebmentionService) ProcessWebmention(source string, target string) erro
 		return err
 	}
 	if webmention != nil {
-		data := interactions.WebmentionInteractionMetaData{
+		data := interactions.WebmentionMetaData{
 			Source: source,
 			Target: target,
 			Title:  hEntry.Title,
@@ -152,12 +156,12 @@ func (s *WebmentionService) ProcessWebmention(source string, target string) erro
 		return err
 	} else {
 		webmention = &interactions.Webmention{}
-		data := interactions.WebmentionInteractionMetaData{
+		data := interactions.WebmentionMetaData{
 			Source: source,
 			Target: target,
 			Title:  hEntry.Title,
 		}
-		webmention.SetMetaData(data)
+		webmention.SetMetaData(&data)
 		webmention.SetEntryID(entryId)
 		webmention.SetCreatedAt(time.Now())
 		err = s.InteractionRepository.Create(webmention)
diff --git a/app/webmention_test.go b/app/webmention_test.go
new file mode 100644
index 0000000..29d85bb
--- /dev/null
+++ b/app/webmention_test.go
@@ -0,0 +1,222 @@
+package app_test
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"owl-blogs/app"
+	"owl-blogs/infra"
+	"owl-blogs/interactions"
+	"owl-blogs/test"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// func constructResponse(html []byte) *http.Response {
+// 	url, _ := url.Parse("http://example.com/foo/bar")
+// 	return &http.Response{
+// 		Request: &http.Request{
+// 			URL: url,
+// 		},
+// 		Body: io.NopCloser(bytes.NewReader([]byte(html))),
+// 	}
+// }
+
+type MockHttpClient struct {
+	PageContent string
+}
+
+// Post implements owlhttp.HttpClient.
+func (MockHttpClient) Post(url string, contentType string, body io.Reader) (resp *http.Response, err error) {
+	panic("unimplemented")
+}
+
+// PostForm implements owlhttp.HttpClient.
+func (MockHttpClient) PostForm(url string, data url.Values) (resp *http.Response, err error) {
+	panic("unimplemented")
+}
+
+func (c *MockHttpClient) Get(url string) (*http.Response, error) {
+	return &http.Response{
+		Body: io.NopCloser(bytes.NewReader([]byte(c.PageContent))),
+	}, nil
+}
+
+func getWebmentionService() *app.WebmentionService {
+	db := test.NewMockDb()
+	entryRegister := app.NewEntryTypeRegistry()
+	entryRegister.Register(&test.MockEntry{})
+	entryRepo := infra.NewEntryRepository(db, entryRegister)
+
+	interactionRegister := app.NewInteractionTypeRegistry()
+	interactionRegister.Register(&interactions.Webmention{})
+
+	interactionRepo := infra.NewInteractionRepo(db, interactionRegister)
+
+	http := infra.OwlHttpClient{}
+	return app.NewWebmentionService(
+		interactionRepo, entryRepo, &http,
+	)
+}
+
+//
+// https://www.w3.org/TR/webmention/#h-webmention-verification
+//
+
+func TestParseValidHEntry(t *testing.T) {
+	service := getWebmentionService()
+	html := []byte("<div class=\"h-entry\"><div class=\"p-name\">Foo</div></div>")
+	entry, err := service.ParseHEntry(&http.Response{Body: io.NopCloser(bytes.NewReader(html))})
+
+	require.NoError(t, err)
+	require.Equal(t, entry.Title, "Foo")
+}
+
+func TestParseValidHEntryWithoutTitle(t *testing.T) {
+	service := getWebmentionService()
+	html := []byte("<div class=\"h-entry\"></div><div class=\"p-name\">Foo</div>")
+	entry, err := service.ParseHEntry(&http.Response{Body: io.NopCloser(bytes.NewReader(html))})
+
+	require.NoError(t, err)
+	require.Equal(t, entry.Title, "")
+}
+
+func TestCreateNewWebmention(t *testing.T) {
+	service := getWebmentionService()
+	service.Http = &MockHttpClient{
+		PageContent: "<div class=\"h-entry\"><div class=\"p-name\">Foo</div></div>",
+	}
+	entry := test.MockEntry{}
+	service.EntryRepository.Create(&entry)
+
+	err := service.ProcessWebmention(
+		"http://example.com/foo",
+		fmt.Sprintf("https.//example.com/posts/%s/", entry.ID()),
+	)
+	require.NoError(t, err)
+
+	inters, err := service.InteractionRepository.FindAll(entry.ID())
+	require.NoError(t, err)
+	require.Equal(t, len(inters), 1)
+	webm := inters[0].(*interactions.Webmention)
+	meta := webm.MetaData().(*interactions.WebmentionMetaData)
+	require.Equal(t, meta.Source, "http://example.com/foo")
+	require.Equal(t, meta.Target, fmt.Sprintf("https.//example.com/posts/%s/", entry.ID()))
+	require.Equal(t, meta.Title, "Foo")
+}
+
+// func TestGetWebmentionEndpointLink(t *testing.T) {
+// 	service := getWebmentionService()
+// 	html := []byte("<link rel=\"webmention\" href=\"http://example.com/webmention\" />")
+// 	endpoint, err := service.GetWebmentionEndpoint(constructResponse(html))
+
+// 	require.NoError(t, err)
+
+// 	require.Equal(t, endpoint, "http://example.com/webmention")
+// }
+
+// func TestGetWebmentionEndpointLinkA(t *testing.T) {
+// 	service := getWebmentionService()
+// 	html := []byte("<a rel=\"webmention\" href=\"http://example.com/webmention\" />")
+// 	endpoint, err := service.GetWebmentionEndpoint(constructResponse(html))
+
+// 	require.NoError(t, err)
+// 	require.Equal(t, endpoint, "http://example.com/webmention")
+// }
+
+// func TestGetWebmentionEndpointLinkAFakeWebmention(t *testing.T) {
+// 	service := getWebmentionService()
+// 	html := []byte("<a rel=\"not-webmention\" href=\"http://example.com/foo\" /><a rel=\"webmention\" href=\"http://example.com/webmention\" />")
+// 	endpoint, err := service.GetWebmentionEndpoint(constructResponse(html))
+
+// 	require.NoError(t, err)
+// 	require.Equal(t, endpoint, "http://example.com/webmention")
+// }
+
+// func TestGetWebmentionEndpointLinkHeader(t *testing.T) {
+// 	service := getWebmentionService()
+// 	html := []byte("")
+// 	resp := constructResponse(html)
+// 	resp.Header = http.Header{"Link": []string{"<http://example.com/webmention>; rel=\"webmention\""}}
+// 	endpoint, err := service.GetWebmentionEndpoint(resp)
+
+// 	require.NoError(t, err)
+// 	require.Equal(t, endpoint, "http://example.com/webmention")
+// }
+
+// func TestGetWebmentionEndpointLinkHeaderCommas(t *testing.T) {
+// 	service := getWebmentionService()
+// 	html := []byte("")
+// 	resp := constructResponse(html)
+// 	resp.Header = http.Header{
+// 		"Link": []string{"<https://webmention.rocks/test/19/webmention/error>; rel=\"other\", <https://webmention.rocks/test/19/webmention>; rel=\"webmention\""},
+// 	}
+// 	endpoint, err := service.GetWebmentionEndpoint(resp)
+
+// 	require.NoError(t, err)
+// 	require.Equal(t, endpoint, "https://webmention.rocks/test/19/webmention")
+// }
+
+// func TestGetWebmentionEndpointRelativeLink(t *testing.T) {
+// 	service := getWebmentionService()
+// 	html := []byte("<link rel=\"webmention\" href=\"/webmention\" />")
+// 	endpoint, err := service.GetWebmentionEndpoint(constructResponse(html))
+
+// 	require.NoError(t, err)
+// 	require.Equal(t, endpoint, "http://example.com/webmention")
+// }
+
+// func TestGetWebmentionEndpointRelativeLinkInHeader(t *testing.T) {
+// 	service := getWebmentionService()
+// 	html := []byte("<link rel=\"webmention\" href=\"/webmention\" />")
+// 	resp := constructResponse(html)
+// 	resp.Header = http.Header{"Link": []string{"</webmention>; rel=\"webmention\""}}
+// 	endpoint, err := service.GetWebmentionEndpoint(resp)
+
+// 	require.NoError(t, err)
+// 	require.Equal(t, endpoint, "http://example.com/webmention")
+// }
+
+// func TestRealWorldWebmention(t *testing.T) {
+//  service := getWebmentionService()
+// 	links := []string{
+// 		"https://webmention.rocks/test/1",
+// 		"https://webmention.rocks/test/2",
+// 		"https://webmention.rocks/test/3",
+// 		"https://webmention.rocks/test/4",
+// 		"https://webmention.rocks/test/5",
+// 		"https://webmention.rocks/test/6",
+// 		"https://webmention.rocks/test/7",
+// 		"https://webmention.rocks/test/8",
+// 		"https://webmention.rocks/test/9",
+// 		// "https://webmention.rocks/test/10", // not supported
+// 		"https://webmention.rocks/test/11",
+// 		"https://webmention.rocks/test/12",
+// 		"https://webmention.rocks/test/13",
+// 		"https://webmention.rocks/test/14",
+// 		"https://webmention.rocks/test/15",
+// 		"https://webmention.rocks/test/16",
+// 		"https://webmention.rocks/test/17",
+// 		"https://webmention.rocks/test/18",
+// 		"https://webmention.rocks/test/19",
+// 		"https://webmention.rocks/test/20",
+// 		"https://webmention.rocks/test/21",
+// 		"https://webmention.rocks/test/22",
+// 		"https://webmention.rocks/test/23/page",
+// 	}
+
+// 	for _, link := range links {
+//
+// 		client := &owl.OwlHttpClient{}
+// 		html, _ := client.Get(link)
+// 		_, err := service.GetWebmentionEndpoint(html)
+
+// 		if err != nil {
+// 			t.Errorf("Unable to find webmention: %v for link %v", err, link)
+// 		}
+// 	}
+
+// }
diff --git a/infra/interaction_repository.go b/infra/interaction_repository.go
index 68f4144..c5b4f83 100644
--- a/infra/interaction_repository.go
+++ b/infra/interaction_repository.go
@@ -1,19 +1,24 @@
 package infra
 
 import (
+	"encoding/json"
+	"errors"
 	"owl-blogs/app"
 	"owl-blogs/app/repository"
 	"owl-blogs/domain/model"
+	"reflect"
+	"time"
 
+	"github.com/google/uuid"
 	"github.com/jmoiron/sqlx"
 )
 
 type sqlInteraction struct {
-	Id        string `db:"id"`
-	Type      string `db:"type"`
-	EntryId   string `db:"entry_id"`
-	CreatedAt string `db:"created_at"`
-	MetaData  string `db:"meta_data"`
+	Id        string    `db:"id"`
+	Type      string    `db:"type"`
+	EntryId   string    `db:"entry_id"`
+	CreatedAt time.Time `db:"created_at"`
+	MetaData  *string   `db:"meta_data"`
 }
 
 type DefaultInteractionRepo struct {
@@ -42,8 +47,34 @@ func NewInteractionRepo(db Database, register *app.InteractionTypeRegistry) repo
 }
 
 // Create implements repository.InteractionRepository.
-func (*DefaultInteractionRepo) Create(interaction model.Interaction) error {
-	panic("unimplemented")
+func (repo *DefaultInteractionRepo) Create(interaction model.Interaction) error {
+	t, err := repo.typeRegistry.TypeName(interaction)
+	if err != nil {
+		return errors.New("interaction type not registered")
+	}
+
+	if interaction.ID() == "" {
+		interaction.SetID(uuid.New().String())
+	}
+
+	var metaDataJson []byte
+	if interaction.MetaData() != nil {
+		metaDataJson, _ = json.Marshal(interaction.MetaData())
+	}
+	metaDataStr := string(metaDataJson)
+
+	_, err = repo.db.NamedExec(`
+		INSERT INTO interactions (id, type, entry_id, created_at, meta_data)
+		VALUES (:id, :type, :entry_id, :created_at, :meta_data)
+	`, sqlInteraction{
+		Id:        interaction.ID(),
+		Type:      t,
+		EntryId:   interaction.EntryID(),
+		CreatedAt: interaction.CreatedAt(),
+		MetaData:  &metaDataStr,
+	})
+
+	return err
 }
 
 // Delete implements repository.InteractionRepository.
@@ -52,8 +83,23 @@ func (*DefaultInteractionRepo) Delete(interaction model.Interaction) error {
 }
 
 // FindAll implements repository.InteractionRepository.
-func (*DefaultInteractionRepo) FindAll(entryId string) ([]model.Interaction, error) {
-	panic("unimplemented")
+func (repo *DefaultInteractionRepo) FindAll(entryId string) ([]model.Interaction, error) {
+	data := []sqlInteraction{}
+	err := repo.db.Select(&data, "SELECT * FROM interactions WHERE entry_id = ?", entryId)
+	if err != nil {
+		return nil, err
+	}
+
+	interactions := []model.Interaction{}
+	for _, d := range data {
+		i, err := repo.sqlInteractionToInteraction(d)
+		if err != nil {
+			return nil, err
+		}
+		interactions = append(interactions, i)
+	}
+
+	return interactions, nil
 }
 
 // FindById implements repository.InteractionRepository.
@@ -65,3 +111,19 @@ func (*DefaultInteractionRepo) FindById(id string) (model.Interaction, error) {
 func (*DefaultInteractionRepo) Update(interaction model.Interaction) error {
 	panic("unimplemented")
 }
+
+func (repo *DefaultInteractionRepo) sqlInteractionToInteraction(interaction sqlInteraction) (model.Interaction, error) {
+	i, err := repo.typeRegistry.Type(interaction.Type)
+	if err != nil {
+		return nil, errors.New("interaction type not registered")
+	}
+	metaData := reflect.New(reflect.TypeOf(i.MetaData()).Elem()).Interface()
+	json.Unmarshal([]byte(*interaction.MetaData), metaData)
+	i.SetID(interaction.Id)
+	i.SetEntryID(interaction.EntryId)
+	i.SetCreatedAt(interaction.CreatedAt)
+	i.SetMetaData(metaData)
+
+	return i, nil
+
+}
diff --git a/interactions/webmention.go b/interactions/webmention.go
index 22247a9..09d8fc0 100644
--- a/interactions/webmention.go
+++ b/interactions/webmention.go
@@ -4,10 +4,10 @@ import "owl-blogs/domain/model"
 
 type Webmention struct {
 	model.InteractionBase
-	meta WebmentionInteractionMetaData
+	meta WebmentionMetaData
 }
 
-type WebmentionInteractionMetaData struct {
+type WebmentionMetaData struct {
 	Source string
 	Target string
 	Title  string
@@ -22,5 +22,5 @@ func (i *Webmention) MetaData() interface{} {
 }
 
 func (i *Webmention) SetMetaData(metaData interface{}) {
-	i.meta = *metaData.(*WebmentionInteractionMetaData)
+	i.meta = *metaData.(*WebmentionMetaData)
 }