jwt_sign.SignJWT.md

Class: SignJWT

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The SignJWT class is a utility for creating Compact JWS formatted JWT strings.

example Usage

const jwt = await new jose.SignJWT({ 'urn:example:claim': true })
  .setProtectedHeader({ alg: 'ES256' })
  .setIssuedAt()
  .setIssuer('urn:example:issuer')
  .setAudience('urn:example:audience')
  .setExpirationTime('2h')
  .sign(privateKey)

console.log(jwt)

Table of contents

Constructors

• constructor

Methods

• setAudience
• setExpirationTime
• setIssuedAt
• setIssuer
• setJti
• setNotBefore
• setProtectedHeader
• setSubject
• sign

Constructors

constructor

• new SignJWT(payload)

Parameters

Name	Type	Description
payload	JWTPayload	The JWT Claims Set object.

Methods

setAudience

▸ setAudience(audience): SignJWT

Set "aud" (Audience) Claim.

Parameters

Name	Type	Description
audience	string | string[]	"aud" (Audience) Claim value to set on the JWT Claims Set.

Returns

SignJWT

---

setExpirationTime

▸ setExpirationTime(input): SignJWT

Set "exp" (Expiration Time) Claim.

Parameters

Name	Type	Description
input	string | number	"exp" (Expiration Time) Claim value to set on the JWT Claims Set. When number is passed that is used as a value, when string is passed it is resolved to a time span and added to the current timestamp.

Returns

SignJWT

---

setIssuedAt

▸ setIssuedAt(input?): SignJWT

Set "iat" (Issued At) Claim.

Parameters

Name	Type	Description
input?	number	"iat" (Issued At) Claim value to set on the JWT Claims Set. Default is current timestamp.

Returns

SignJWT

---

setIssuer

▸ setIssuer(issuer): SignJWT

Set "iss" (Issuer) Claim.

Parameters

Name	Type	Description
issuer	string	"Issuer" Claim value to set on the JWT Claims Set.

Returns

SignJWT

---

setJti

▸ setJti(jwtId): SignJWT

Set "jti" (JWT ID) Claim.

Parameters

Name	Type	Description
jwtId	string	"jti" (JWT ID) Claim value to set on the JWT Claims Set.

Returns

SignJWT

---

setNotBefore

▸ setNotBefore(input): SignJWT

Set "nbf" (Not Before) Claim.

Parameters

Name	Type	Description
input	string | number	"nbf" (Not Before) Claim value to set on the JWT Claims Set. When number is passed that is used as a value, when string is passed it is resolved to a time span and added to the current timestamp.

Returns

SignJWT

---

setProtectedHeader

▸ setProtectedHeader(protectedHeader): SignJWT

Sets the JWS Protected Header on the SignJWT object.

Parameters

Name	Type	Description
protectedHeader	JWTHeaderParameters	JWS Protected Header. Must contain an "alg" (JWS Algorithm) property.

Returns

SignJWT

---

setSubject

▸ setSubject(subject): SignJWT

Set "sub" (Subject) Claim.

Parameters

Name	Type	Description
subject	string	"sub" (Subject) Claim value to set on the JWT Claims Set.

Returns

SignJWT

---

sign

▸ sign(key, options?): Promise<string>

Signs and returns the JWT.

Parameters

Name	Type	Description
key	Uint8Array | KeyLike	Private Key or Secret to sign the JWT with.
options?	SignOptions	JWT Sign options.

Returns

Promise<string>