add mockdata service (tbd) to graph

[2075]

Shape

range {
    start: block -> optional, then elements is a divisor
    end: block -> optional, default: current block
    unit: enum: "day", "week", "month", "months", "year" -> default: "day"
    elements: int -> default: 1000
    filter: total, transferrable, reserved, locked -> default: total
    fx: usd, eur -> optional, returns converted, otherwise original currency
}

fx ( input: string, output: string, qty: float, range: object )
 zeroausd -> [0.1,0.2,0.3,0.4,0.9,1.9,10.9,100,200,900,1337]
 gameausd
 playausd -> [1]
 zerodot
 gamedot
 zeroksm
 gameksm

treasury ( where: { id: <0xb00b5> } )
  mock: boolean -> return true when no real data available
  balances ( currency: string, range: object )
    returns -> [0.1,0.2,0.3,0.4,0.9,1.9,10.9,100,200,900,1337]
  events ( currency: string, range: object )
    returns -> [ { block, event_type } , ... , { block, event_type } ]

events [ { block, event_type }]
  block: int
  event_type: 
    create, 
    donation, funding,
    withdrawal, spending,
    join, leave,
    lock, unlock, reserve, unreserve,
    unknown
    ...

  schema,
  query -> e.g. query avg blocktime
  mutation
  subscription -> get the last block 

1.

• decide if apollo mock or custom resolver
• add resolver to provide date ranges based on respective blocktime
• define schema required in the frontend

2.

• build resolver sending static data
• build resolver sending dynamic data

3.

• add mock resolver returning data for treasury to dev
• add mock resolver to stage
• add mock resolver returning errors to prod