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Merge pull request #488 from cosmos/matt/301-lcd-client
Move LCD client into this repo
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| 'use strict' | ||
|
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| const axios = require('axios') | ||
|
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| // returns an async function which makes a request for the given | ||
| // HTTP method (GET/POST/DELETE/etc) and path (/foo/bar) | ||
| function req (method, path) { | ||
| return async function (data) { | ||
| return await this.request(method, path, data) | ||
| } | ||
| } | ||
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| // returns an async function which makes a request for the given | ||
| // HTTP method and path, which accepts arguments to be appended | ||
| // to the path (/foo/{arg}/...) | ||
| function argReq (method, path) { | ||
| return async function (args, data) { | ||
| // `args` can either be a single value or an array | ||
| if (Array.isArray(args)) { | ||
| args = args.join('/') | ||
| } | ||
| return await this.request(method, `${path}/${args}`, data) | ||
| } | ||
| } | ||
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| class Client { | ||
| constructor (server = 'http://localhost:8998') { | ||
| this.server = server | ||
| } | ||
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| async request (method, path, data) { | ||
| try { | ||
| let res = await axios[method.toLowerCase()](this.server + path, data) | ||
| return res.data | ||
| } catch (resError) { | ||
| if (!resError.response || !resError.response.data) { | ||
| throw resError | ||
| } | ||
| let data = resError.response.data | ||
| // server responded with error message, create an Error from that | ||
| let error = Error(data.error) | ||
| error.code = data.code | ||
| throw error | ||
| } | ||
| } | ||
| } | ||
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| let fetchAccount = argReq('GET', '/query/account') | ||
| let fetchNonce = argReq('GET', '/query/nonce') | ||
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| Object.assign(Client.prototype, { | ||
| sign: req('POST', '/sign'), | ||
| postTx: req('POST', '/tx'), | ||
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| // keys | ||
| generateKey: req('POST', '/keys'), | ||
| listKeys: req('GET', '/keys'), | ||
| getKey: argReq('GET', '/keys'), | ||
| updateKey: argReq('PUT', '/keys'), | ||
| deleteKey: argReq('DELETE', '/keys'), | ||
| recoverKey: req('POST', '/keys/recover'), | ||
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| // coins | ||
| buildSend: req('POST', '/build/send'), | ||
| async queryAccount (address) { | ||
| try { | ||
| return await fetchAccount.call(this, address) | ||
| } catch (err) { | ||
| // if account not found, return null instead of throwing | ||
| if (err.message.includes('account bytes are empty')) { | ||
| return null | ||
| } | ||
| throw err | ||
| } | ||
| }, | ||
| coinTxs: argReq('GET', '/tx/coin'), | ||
|
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| // nonce | ||
| async queryNonce (address) { | ||
| try { | ||
| return await fetchNonce.call(this, address) | ||
| } catch (err) { | ||
| // if nonce not found, return 0 instead of throwing | ||
| if (err.message.includes('nonce empty')) { | ||
| return 0 | ||
| } | ||
| throw err | ||
| } | ||
| }, | ||
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| // Tendermint RPC | ||
| status: req('GET', '/tendermint/status'), | ||
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| // staking | ||
| candidate: argReq('GET', '/query/stake/candidates'), | ||
| candidates: req('GET', '/query/stake/candidates'), | ||
| buildDelegate: req('POST', '/build/stake/delegate'), | ||
| buildUnbond: req('POST', '/build/stake/unbond'), | ||
| bondingsByDelegator: argReq('GET', '/tx/bondings/delegator'), | ||
| bondingsByValidator: argReq('GET', '/tx/bondings/validator') | ||
|
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| // TODO: separate API registration for different modules | ||
| }) | ||
|
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| module.exports = Client |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| let axios = require('axios') | ||
| let LcdClient = require('../../../app/src/renderer/lcdClient.js') | ||
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| describe('LCD Client', () => { | ||
| let client = new LcdClient() | ||
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| it('makes a GET request with no args', async () => { | ||
| axios.get = jest.fn() | ||
| .mockReturnValueOnce(Promise.resolve({ | ||
| data: { foo: 'bar' } | ||
| })) | ||
|
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| let res = await client.status() | ||
| expect(res).toEqual({ foo: 'bar' }) | ||
| expect(axios.get.mock.calls[0]).toEqual([ | ||
| 'http://localhost:8998/tendermint/status', | ||
| undefined | ||
| ]) | ||
| }) | ||
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| it('makes a GET request with one arg', async () => { | ||
| axios.get = jest.fn() | ||
| .mockReturnValueOnce(Promise.resolve({ | ||
| data: { foo: 'bar' } | ||
| })) | ||
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| let res = await client.getKey('myKey') | ||
| expect(res).toEqual({ foo: 'bar' }) | ||
| expect(axios.get.mock.calls[0]).toEqual([ | ||
| 'http://localhost:8998/keys/myKey', | ||
| undefined | ||
| ]) | ||
| }) | ||
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| it('makes a GET request with multiple args', async () => { | ||
| axios.get = jest.fn() | ||
| .mockReturnValueOnce(Promise.resolve({ | ||
| data: { foo: 'bar' } | ||
| })) | ||
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| let res = await client.bondingsByDelegator([ 'foo', 'bar' ]) | ||
| expect(res).toEqual({ foo: 'bar' }) | ||
| expect(axios.get.mock.calls[0]).toEqual([ | ||
| 'http://localhost:8998/tx/bondings/delegator/foo/bar', | ||
| undefined | ||
| ]) | ||
| }) | ||
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| it('makes a POST request', async () => { | ||
| axios.post = jest.fn() | ||
| .mockReturnValueOnce(Promise.resolve({ | ||
| data: { foo: 'bar' } | ||
| })) | ||
|
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| let res = await client.generateKey() | ||
| expect(res).toEqual({ foo: 'bar' }) | ||
| expect(axios.post.mock.calls[0]).toEqual([ | ||
| 'http://localhost:8998/keys', | ||
| undefined | ||
| ]) | ||
| }) | ||
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| it('makes a POST request with args and data', async () => { | ||
| axios.put = jest.fn() | ||
| .mockReturnValueOnce(Promise.resolve({ | ||
| data: { foo: 'bar' } | ||
| })) | ||
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| let res = await client.updateKey('myKey', { abc: 123 }) | ||
| expect(res).toEqual({ foo: 'bar' }) | ||
| expect(axios.put.mock.calls[0]).toEqual([ | ||
| 'http://localhost:8998/keys/myKey', | ||
| { abc: 123 } | ||
| ]) | ||
| }) | ||
|
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| it('makes a GET request with an error', async () => { | ||
| axios.get = jest.fn() | ||
| .mockReturnValueOnce(Promise.reject({ | ||
| response: { | ||
| data: { | ||
| error: 'foo', | ||
| code: 123 | ||
| } | ||
| } | ||
| })) | ||
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| try { | ||
| await client.status() | ||
| } catch (err) { | ||
| expect(err.message).toBe('foo') | ||
| expect(err.code).toBe(123) | ||
| } | ||
| expect(axios.get.mock.calls[0]).toEqual([ | ||
| 'http://localhost:8998/tendermint/status', | ||
| undefined | ||
| ]) | ||
| }) | ||
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| it('does not throw error for empty results', async () => { | ||
| axios.get = jest.fn() | ||
| .mockReturnValueOnce(Promise.reject({ | ||
| response: { | ||
| data: { | ||
| error: 'account bytes are empty', | ||
| code: 1 | ||
| } | ||
| } | ||
| })) | ||
| let res = await client.queryAccount('address') | ||
| expect(res).toBe(null) | ||
|
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| axios.get = jest.fn() | ||
| .mockReturnValueOnce(Promise.reject({ | ||
| response: { | ||
| data: { | ||
| error: 'nonce empty', | ||
| code: 2 | ||
| } | ||
| } | ||
| })) | ||
| res = await client.queryNonce('address') | ||
| expect(res).toBe(0) | ||
| }) | ||
| }) |
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