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OpenAPI Specification
openapi: 3.2.0
info:
title: WeChat Mini Program Server API (subset) Login API
description: 'Subset OpenAPI description for the WeChat (Weixin) Mini Programs server-side
API hosted at `api.weixin.qq.com`.'
version: 1.0.0
contact:
name: WeChat Developer Community
url: https://developers.weixin.qq.com/community/
license:
name: Proprietary
servers:
- url: https://api.weixin.qq.com
description: WeChat production API
tags:
- name: Login
description: Mini Program login and session exchange.
paths:
/sns/jscode2session:
get:
tags:
- Login
summary: auth.code2Session
description: 'Exchange a temporary login `code` returned by `wx.login()` in the Mini
Program client for a stable `openid` and `session_key`. The
`session_key` is used to decrypt encrypted user data delivered by other
Mini Program APIs.'
operationId: code2Session
parameters:
- in: query
name: appid
required: true
schema:
type: string
description: Mini Program AppID.
- in: query
name: secret
required: true
schema:
type: string
description: Mini Program AppSecret.
- in: query
name: js_code
required: true
schema:
type: string
description: Temporary login credential `code` from `wx.login()`.
- in: query
name: grant_type
required: true
schema:
type: string
enum:
- authorization_code
description: Must be `authorization_code`.
responses:
'200':
description: Session exchange result.
content:
application/json:
schema:
oneOf:
- type: object
properties:
openid:
type: string
description: Mini Program-scoped user identifier.
session_key:
type: string
description: Session key used to decrypt encrypted payloads.
unionid:
type: string
description: WeChat Open Platform-wide UnionID (when applicable).
- $ref: '#/components/schemas/WeChatError'
components:
schemas:
WeChatError:
type: object
description: Standard WeChat API error envelope.
properties:
errcode:
type: integer
description: Numeric WeChat error code; `0` indicates success.
errmsg:
type: string
description: Human-readable error message.
externalDocs:
description: WeChat Mini Program Server API
url: https://developers.weixin.qq.com/miniprogram/en/dev/api-backend/