Added api endpoints and tests

database.sql

@@ -0,0 +1,68 @@
+create table article
+(
+    id       integer
+        constraint article_pk
+            primary key autoincrement,
+    title    text    not null,
+    summary  text,
+    image    text,
+    created  integer not null,
+    modified integer default 0,
+    link     text    not null,
+    markdown text    not null,
+    html     text    not null
+);
+
+create unique index article_link_uindex
+    on article (link);
+
+create unique index article_title_uindex
+    on article (title);
+
+create table article_tag
+(
+    article_id integer not null
+        references article
+            on delete cascade,
+    tag        text
+);
+
+create table assets
+(
+    id   integer
+        constraint assets_pk
+            primary key autoincrement,
+    name text   not null,
+    data blob   not null,
+    link string not null
+);
+
+create unique index assets_link_uindex
+    on assets (link);
+
+create unique index assets_name_uindex
+    on assets (name);
+
+create table author
+(
+    id          integer
+        constraint author_pk
+            primary key autoincrement,
+    name        text not null,
+    password    text not null,
+    information text
+);
+
+create table article_author
+(
+    article_id integer not null
+        references article
+            on delete cascade,
+    author_id  integer not null
+        references author
+            on delete cascade
+);
+
+create unique index author_name_uindex
+    on author (name);
+