diff --git a/test-api.sh b/test-api.sh
new file mode 100755
index 0000000..4ef3c38
--- /dev/null
+++ b/test-api.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+echo Create users @a, @b, and @c:
+userIDs=$(curl "localhost:8080/graphql" -X POST -H "content-type: application/json" --data '{"query":"mutation addUsers($a: NewUser!, $b: NewUser!, $c: NewUser!) {\n  a: newUser(newUser: $a)\n  b: newUser(newUser: $b)\n  c: newUser(newUser: $c)\n}","variables":{"a":{"userName":"@a","passwordHash":"1234567890"},"b":{"userName":"@b","passwordHash":"1234567890"},"c":{"userName":"@c","passwordHash":"1234567890"}},"operationName":"addUsers"}' | jq .data)
+echo "$userIDs" | jq .
+a=$(echo "$userIDs" | jq -r .a)
+b=$(echo "$userIDs" | jq -r .b)
+c=$(echo "$userIDs" | jq -r .c)
+
+echo Create chats between @a and @b, @a and @c, and group chats between @a, @b, and @c:
+curl "localhost:8080/graphql" -X POST -H "content-type: application/json" --data "{\"query\":\"mutation createChat(\$a: ID!, \$b: ID!, \$c: ID!, \$pwHash: String!) {\n  ab: newChat(user: \$a, passwordHash: \$pwHash, with: \$b)\n  ac: newChat(user: \$a, passwordHash: \$pwHash, with: \$c)\n  abc: newGroupChat(user: \$a, passwordHash: \$pwHash, with: [\$b, \$c], title: \\\"ABC\\\")\n}\",\"variables\":{\"pwHash\":\"1234567890\",\"a\":\"$a\",\"b\":\"$b\",\"c\":\"$c\"},\"operationName\":\"createChat\"}" | jq .data
+
+echo List all users\' chats:
+curl "localhost:8080/graphql" -X POST -H "content-type: application/json" --data "{\"query\":\"query listChats(\$a: ID!, \$b: ID!, \$c: ID!, \$pwHash: String!) {\n  aChats: chats(user: \$a, passwordHash: \$pwHash) {\n    id\n    users\n  }\n  aGroupChats: groupChats(user: \$a, passwordHash: \$pwHash) {\n    id\n    title\n    description\n    users\n  }\n  bChats: chats(user: \$b, passwordHash: \$pwHash) {\n    id\n    users\n  }\n  bGroupChats: groupChats(user: \$b, passwordHash: \$pwHash) {\n    id\n    title\n    description\n    users\n  }\n  cChats: chats(user: \$c, passwordHash: \$pwHash) {\n    id\n    users\n  }\n  cGroupChats: groupChats(user: \$c, passwordHash: \$pwHash) {\n    id\n    title\n    description\n    users\n  }\n}\",\"variables\":{\"pwHash\":\"1234567890\",\"a\":\"$a\",\"b\":\"$b\",\"c\":\"$c\"},\"operationName\":\"listChats\"}" | jq .data
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