Provider

BaseProvider

Kind: global class

• BaseProvider

  • new BaseProvider([options])

  • .requestId() ⇒ string

  • .request(data) ⇒ Promise.<*>

  • .call(method, ...params) ⇒ Promise.<*>

  • .send(method, [params]) ⇒ Promise.<*>

  • .batch(array) ⇒ Promise.<Array>

new BaseProvider([options])

Param	Type	Default	Description
[options]	object
options.url	string		Full json rpc http url
[options.timeout]	number	30*1000	Request time out in ms
[options.retry]	number	1	Retry number
[options.keepAlive]	boolean	false	Whether open the http keep-alive option
[options.logger]	object		Logger with info and error

baseProvider.requestId() ⇒ string

Gen a random json rpc id. It is used in call method, overwrite it to gen your own id.

Kind: instance method of BaseProvider

baseProvider.request(data) ⇒ Promise.<*>

Call a json rpc method with params

Kind: instance method of BaseProvider Returns: Promise.<*> - Json rpc method return value.

Param	Type	Description
data	object
data.method	string	Json rpc method name.
[data.params]	array	Json rpc method params.

Example

> await provider.request({method: 'cfx_epochNumber'});
> await provider.request({method: 'cfx_getBlockByHash', params: [blockHash]});

baseProvider.call(method, ...params) ⇒ Promise.<*>

Call a json rpc method with params

Kind: instance method of BaseProvider Returns: Promise.<*> - Json rpc method return value.

Param	Type	Description
method	string	Json rpc method name.
...params	Array.<any>	Json rpc method params.

Example

> await provider.call('cfx_epochNumber');
> await provider.call('cfx_getBlockByHash', blockHash);

baseProvider.send(method, [params]) ⇒ Promise.<*>

Send a json rpc method request

Kind: instance method of BaseProvider Returns: Promise.<*> - Json rpc method return value.

Param	Type	Description
method	string	Json rpc method name.
[params]	array	Json rpc method params.

Example

> await provider.send('cfx_epochNumber');
> await provider.send('cfx_getBlockByHash', [blockHash]);

baseProvider.batch(array) ⇒ Promise.<Array>

Batch call json rpc methods with params

Kind: instance method of BaseProvider

Param	Type	Description
array	Array.<object>	Array of object with "method" and "params"

Example

> await provider.batch([
  { method: 'cfx_epochNumber' },
  { method: 'cfx_getBalance', params: ['cfxtest:aaawgvnhveawgvnhveawgvnhveawgvnhvey1umfzwp'] },
  { method: 'InValidInput' },
])
   [ '0x3b734d', '0x22374d959c622f74728', RPCError: Method not found ]