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43 changes: 43 additions & 0 deletions
43
...ages/js-dapi-client/lib/methods/platform/getIdentityBalance/GetIdentityBalanceResponse.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| const AbstractResponse = require('../response/AbstractResponse'); | ||
| const InvalidResponseError = require('../response/errors/InvalidResponseError'); | ||
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| class GetIdentityBalanceResponse extends AbstractResponse { | ||
| /** | ||
| * @param {Buffer} identity | ||
| * @param {Metadata} metadata | ||
| * @param {Proof} [proof] | ||
| */ | ||
| constructor(balance, metadata, proof = undefined) { | ||
| super(metadata, proof); | ||
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| this.balance = balance; | ||
| } | ||
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| /** | ||
| * @returns {Buffer} | ||
| */ | ||
| getIdentity() { | ||
| return this.balance; | ||
| } | ||
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| /** | ||
| * @param proto | ||
| * @returns {GetIdentityBalanceResponse} | ||
| */ | ||
| static createFromProto(proto) { | ||
| const balance = proto.getV0().getBalance(); | ||
| const { metadata, proof } = AbstractResponse.createMetadataAndProofFromProto(proto); | ||
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| if (!balance && !proof) { | ||
| throw new InvalidResponseError('Balance is not defined'); | ||
| } | ||
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| return new GetIdentityBalanceResponse( | ||
| balance, | ||
| metadata, | ||
| proof, | ||
| ); | ||
| } | ||
| } | ||
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| module.exports = GetIdentityBalanceResponse; |
71 changes: 71 additions & 0 deletions
71
packages/js-dapi-client/lib/methods/platform/getIdentityBalance/getIdentityBalanceFactory.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| const { | ||
| v0: { | ||
| PlatformPromiseClient, | ||
| GetIdentityBalanceRequest, | ||
| }, | ||
| } = require('@dashevo/dapi-grpc'); | ||
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| const GetIdentityBalanceResponse = require('./GetIdentityBalanceResponse'); | ||
| const InvalidResponseError = require('../response/errors/InvalidResponseError'); | ||
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| /** | ||
| * @param {GrpcTransport} grpcTransport | ||
| * @returns {getIdentityBalance} | ||
| */ | ||
| function getIdentityBalanceFactory(grpcTransport) { | ||
| /** | ||
| * Fetch the identity balance by id | ||
| * @typedef {getIdentityBalance} | ||
| * @param {Buffer} id | ||
| * @param {DAPIClientOptions & {prove: boolean}} [options] | ||
| * @returns {Promise<GetIdentityBalanceResponse>} | ||
| */ | ||
| async function getIdentityBalance(id, options = {}) { | ||
| const { GetIdentityBalanceRequestV0 } = GetIdentityBalanceRequest; | ||
| const getIdentityBalanceRequest = new GetIdentityBalanceRequest(); | ||
| // need to convert objects inherited from Buffer to pure buffer as google protobuf | ||
| // doesn't support extended buffers | ||
| // https://github.com/protocolbuffers/protobuf/blob/master/js/binary/utils.js#L1049 | ||
| if (Buffer.isBuffer(id)) { | ||
| // eslint-disable-next-line no-param-reassign | ||
| id = Buffer.from(id); | ||
| } | ||
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| getIdentityBalanceRequest.setV0( | ||
| new GetIdentityBalanceRequestV0() | ||
| .setId(id) | ||
| .setProve(!!options.prove), | ||
| ); | ||
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| let lastError; | ||
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| // TODO: simple retry before the dapi versioning is properly implemented | ||
| for (let i = 0; i < 3; i += 1) { | ||
| try { | ||
| // eslint-disable-next-line no-await-in-loop | ||
| const getIdentityBalanceResponse = await grpcTransport.request( | ||
| PlatformPromiseClient, | ||
| 'getIdentityBalance', | ||
| getIdentityBalanceRequest, | ||
| options, | ||
| ); | ||
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| return GetIdentityBalanceResponse.createFromProto(getIdentityBalanceResponse); | ||
| } catch (e) { | ||
| if (e instanceof InvalidResponseError) { | ||
| lastError = e; | ||
| } else { | ||
| throw e; | ||
| } | ||
| } | ||
| } | ||
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| // If we made it past the cycle it means that the retry didn't work, | ||
| // and we're throwing the last error encountered | ||
| throw lastError; | ||
| } | ||
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| return getIdentityBalance; | ||
| } | ||
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| module.exports = getIdentityBalanceFactory; |