package.json

@@ -69,7 +69,9 @@
   },
   "optionalDependencies": {
     "@effect/schema": "*",
+    "@types/jsonwebtoken": "*",
     "effect": "*",
+    "jsonwebtoken": "*",
     "mobx": "*"
   }
 }

src/Layers/JSONWebToken.ts

@@ -0,0 +1,46 @@
+import { Context, Effect, Layer } from "effect"
+import jwt from "jsonwebtoken"
+
+
+export class JSONWebToken extends Context.Tag("JSONWebToken")<JSONWebToken, {
+    sign: (
+        payload:             string | object | Buffer,
+        secretOrPrivateKey:  jwt.Secret,
+        options:             jwt.SignOptions,
+    ) => Effect.Effect<
+        string,
+        Error,
+        never
+    >,
+
+    verify: (
+        token:              string,
+        secretOrPublicKey:  jwt.Secret,
+        options:            jwt.VerifyOptions,
+    ) => Effect.Effect<
+        string | jwt.Jwt | jwt.JwtPayload,
+        jwt.VerifyErrors | Error,
+        never
+    >,
+}>() {}
+
+
+export const JSONWebTokenLive = Layer.succeed(JSONWebToken, {
+    sign: (payload, secretOrPrivateKey, options) => Effect.async(resume =>
+        jwt.sign(payload, secretOrPrivateKey, options, (err, token) => {
+            resume(token
+                ? Effect.succeed(token)
+                : Effect.fail(err || new Error("Unknown error"))
+            )
+        })
+    ),
+
+    verify: (token, secretOrPublicKey, options) => Effect.async(resume =>
+        jwt.verify(token, secretOrPublicKey, options, (err, decoded) => {
+            resume(decoded
+                ? Effect.succeed(decoded)
+                : Effect.fail(err || new Error("Unknown error"))
+            )
+        })
+    ),
+})

src/Layers/index.ts

@@ -0,0 +1 @@
+export * as JSONWebToken from "./JSONWebToken"

src/index.ts

@@ -1,2 +1,3 @@
+export * as Layers from "./Layers"
 export * as Schema from "./Schema"
 export * as Types from "./Types"