Middleware

Handles all Middleware related functionality

Hierarchy

• Middleware

Index

Methods

• getEventByIndexedArgs

• getEventsByIndexedArgs

• getTransactionByHash

Methods

getEventByIndexedArgs

▸ getEventByIndexedArgs(opts: object): Promise‹EventIdentifier | null›

Defined in src/Middleware.ts:34

Retrieve a single event by any of its indexed arguments. Can be filtered using parameters

note uses the middleware

Parameters:

▪ opts: object

Name	Type	Description
eventArg0?	undefined | string	event parameter value to filter by in position 0
eventArg1?	undefined | string	event parameter value to filter by in position 1
eventArg2?	undefined | string	event parameter value to filter by in position 2
eventId	EventId	type of the event to fetch
moduleId	ModuleId	type of the module to fetch

Returns: Promise‹EventIdentifier | null›

---

getEventsByIndexedArgs

▸ getEventsByIndexedArgs(opts: object): Promise‹EventIdentifier[] | null›

Defined in src/Middleware.ts:73

Retrieve a list of events. Can be filtered using parameters

note uses the middleware

Parameters:

▪ opts: object

Name	Type	Description
eventArg0?	undefined | string	event parameter value to filter by in position 0
eventArg1?	undefined | string	event parameter value to filter by in position 1
eventArg2?	undefined | string	event parameter value to filter by in position 2
eventId	EventId	type of the event to fetch
moduleId	ModuleId	type of the module to fetch
size?	undefined | number	page size
start?	undefined | number	page offset

Returns: Promise‹EventIdentifier[] | null›

---

getTransactionByHash

▸ getTransactionByHash(opts: object): Promise‹ExtrinsicData | null›

Defined in src/Middleware.ts:117

Retrieve a transaction by hash

note uses the middleware

Parameters:

▪ opts: object

Name	Type	Description
txHash	string	hash of the transaction

Returns: Promise‹ExtrinsicData | null›