Frog.image Context

The c object is the parameter of the route handlers.

import { Frog } from 'frog'
 
export const app = new Frog({ title: 'Frog Frame' })
 
app.image('/', (c) => {
  return c.res({/* ... */})
})

previousButtonValues

Type: string[]

The data of the previous intents.

import { Button, Frog } from 'frog'
 
export const app = new Frog({ 
  title: 'Frog Frame'
}) 
 
app.frame('/', (c) => {
  const { previousButtonValues } = c
  return c.res({/* ... */})
})

previousState

Type: State

The state of the previous frame.

import { Button, Frog } from 'frog'
 
type State = {     
  values: string[] 
} 
 
export const app = new Frog<{ State: State }>({ 
  initialState: { 
    values: [] 
  },
  title: 'Frog Frame',
}) 
 
app.frame('/', (c) => {
  const { previousState } = c
  return c.res({/* ... */})
})

req

Type: Request

Hono request object.

import { Button, Frog } from 'frog'
 
export const app = new Frog({ title: 'Frog Frame' })
 
app.image('/', (c) => {
  const { req } = c
  return c.res({/* ... */})
})

res

Type: (response: ImageResponse) => ImageResponse

The image response.

import { Button, Frog } from 'frog'
 
export const app = new Frog({ title: 'Frog Frame' })
 
app.image('/', (c) => {
  return c.res({/* ... */})
})

var

Type: HonoContext['var']

Extract a context value that was previously set via set in Middleware.

import { Button, Frog } from 'frog'
 
export const app = new Frog({ title: 'Frog Frame' })
 
app.use(async (c, next) => {
  c.set('message', 'Frog is cool!!')
  await next()
})
 
app.image('/', (c) => {
  const message = c.var.message
  return c.res({/* ... */})
})